mirror of
https://github.com/UtilitechAS/amsreader-firmware.git
synced 2026-01-15 00:12:07 +00:00
601 lines
23 KiB
C++
601 lines
23 KiB
C++
#include "IEC6205675.h"
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#include "lwip/def.h"
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#include "Timezone.h"
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#include "ntohll.h"
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IEC6205675::IEC6205675(const char* d, uint8_t useMeterType, MeterConfig* meterConfig, DataParserContext &ctx) {
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float val;
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char str[64];
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TimeChangeRule CEST = {"CEST", Last, Sun, Mar, 2, 120};
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TimeChangeRule CET = {"CET ", Last, Sun, Oct, 3, 60};
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Timezone tz(CEST, CET);
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this->packageTimestamp = ctx.timestamp;
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val = getNumber(AMS_OBIS_ACTIVE_IMPORT, sizeof(AMS_OBIS_ACTIVE_IMPORT), ((char *) (d)));
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if(val == NOVALUE) {
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CosemData* data = getCosemDataAt(1, ((char *) (d)));
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// Kaifa special case...
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if(data->base.type == CosemTypeOctetString) {
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this->packageTimestamp = this->packageTimestamp > 0 ? tz.toUTC(this->packageTimestamp) : 0;
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memcpy(str, data->oct.data, data->oct.length);
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str[data->oct.length] = 0x00;
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String listId = String(str);
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if(listId.startsWith(F("KFM_001"))) {
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this->listId = listId;
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meterType = AmsTypeKaifa;
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int idx = 0;
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data = getCosemDataAt(idx, ((char *) (d)));
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idx+=2;
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if(data->base.length == 0x0D || data->base.length == 0x12) {
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listType = data->base.length == 0x12 ? 3 : 2;
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data = getCosemDataAt(idx++, ((char *) (d)));
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memcpy(str, data->oct.data, data->oct.length);
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str[data->oct.length] = 0x00;
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meterId = String(str);
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data = getCosemDataAt(idx++, ((char *) (d)));
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memcpy(str, data->oct.data, data->oct.length);
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str[data->oct.length] = 0x00;
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meterModel = String(str);
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data = getCosemDataAt(idx++, ((char *) (d)));
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activeImportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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activeExportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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reactiveImportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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reactiveExportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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l1current = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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l2current = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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l3current = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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l1voltage = ntohl(data->dlu.data) / 10.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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l2voltage = ntohl(data->dlu.data) / 10.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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l3voltage = ntohl(data->dlu.data) / 10.0;
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} else if(data->base.length == 0x09 || data->base.length == 0x0E) {
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listType = data->base.length == 0x0E ? 3 : 2;
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data = getCosemDataAt(idx++, ((char *) (d)));
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memcpy(str, data->oct.data, data->oct.length);
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str[data->oct.length] = 0x00;
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meterId = String(str);
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data = getCosemDataAt(idx++, ((char *) (d)));
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memcpy(str, data->oct.data, data->oct.length);
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str[data->oct.length] = 0x00;
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meterModel = String(str);
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data = getCosemDataAt(idx++, ((char *) (d)));
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activeImportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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activeExportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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reactiveImportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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reactiveExportPower = ntohl(data->dlu.data);
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data = getCosemDataAt(idx++, ((char *) (d)));
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l1current = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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l1voltage = ntohl(data->dlu.data) / 10.0;
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}
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if(listType >= 2 && memcmp(meterModel.c_str(), "MA304T3", 7) == 0) {
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l2voltage = sqrt(pow(l1voltage - l3voltage * cos(60 * (PI/180)), 2) + pow(l3voltage * sin(60 * (PI/180)),2));
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if(l2voltage > 0) {
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l2current = (((activeImportPower - activeExportPower) * sqrt(3)) - (l1voltage * l1current) - (l3voltage * l3current)) / l2voltage;
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}
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}
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if(listType == 3) {
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data = getCosemDataAt(idx++, ((char *) (d)));
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switch(data->base.type) {
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case CosemTypeOctetString: {
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if(data->oct.length == 0x0C) {
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AmsOctetTimestamp* amst = (AmsOctetTimestamp*) data;
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time_t ts = decodeCosemDateTime(amst->dt);
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meterTimestamp = tz.toUTC(ts);
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}
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}
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}
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data = getCosemDataAt(idx++, ((char *) (d)));
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activeImportCounter = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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activeExportCounter = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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reactiveImportCounter = ntohl(data->dlu.data) / 1000.0;
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data = getCosemDataAt(idx++, ((char *) (d)));
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reactiveExportCounter = ntohl(data->dlu.data) / 1000.0;
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}
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lastUpdateMillis = millis();
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}
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} else if(useMeterType == AmsTypeKaifa && data->base.type == CosemTypeDLongUnsigned) {
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this->packageTimestamp = this->packageTimestamp > 0 ? tz.toUTC(this->packageTimestamp) : 0;
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listType = 1;
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meterType = AmsTypeKaifa;
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activeImportPower = ntohl(data->dlu.data);
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lastUpdateMillis = millis();
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}
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// Kaifa end
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} else {
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listType = 1;
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activeImportPower = val;
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meterType = AmsTypeUnknown;
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CosemData* version = findObis(AMS_OBIS_VERSION, sizeof(AMS_OBIS_VERSION), d);
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if(version != NULL && (version->base.type == CosemTypeString || version->base.type == CosemTypeOctetString)) {
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if(memcmp(version->str.data, "AIDON", 5) == 0) {
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meterType = AmsTypeAidon;
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} else if(memcmp(version->str.data, "Kamstrup", 8) == 0) {
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meterType = AmsTypeKamstrup;
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} else if(memcmp(version->str.data, "KFM", 3) == 0) {
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meterType = AmsTypeKaifa;
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}
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} else {
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version = getCosemDataAt(1, ((char *) (d)));
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if(version->base.type == CosemTypeString) {
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if(memcmp(version->str.data, "Kamstrup", 8) == 0) {
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meterType = AmsTypeKamstrup;
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}
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}
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}
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// Try system title
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if(meterType == AmsTypeUnknown) {
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if(memcmp(ctx.system_title, "SAGY", 4) == 0) {
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meterType = AmsTypeSagemcom;
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} else if(memcmp(ctx.system_title, "KFM", 3) == 0) {
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meterType = AmsTypeKaifa;
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}
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}
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if(this->packageTimestamp > 0) {
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if(meterType == AmsTypeAidon || meterType == AmsTypeKamstrup) {
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this->packageTimestamp = this->packageTimestamp - 3600;
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}
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}
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uint8_t str_len = 0;
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str_len = getString(AMS_OBIS_VERSION, sizeof(AMS_OBIS_VERSION), ((char *) (d)), str);
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if(str_len > 0) {
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listId = String(str);
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}
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val = getNumber(AMS_OBIS_ACTIVE_EXPORT, sizeof(AMS_OBIS_ACTIVE_EXPORT), ((char *) (d)));
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if(val != NOVALUE) {
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activeExportPower = val;
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}
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val = getNumber(AMS_OBIS_REACTIVE_IMPORT, sizeof(AMS_OBIS_REACTIVE_IMPORT), ((char *) (d)));
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if(val != NOVALUE) {
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reactiveImportPower = val;
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}
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val = getNumber(AMS_OBIS_REACTIVE_EXPORT, sizeof(AMS_OBIS_REACTIVE_EXPORT), ((char *) (d)));
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if(val != NOVALUE) {
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reactiveExportPower = val;
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}
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val = getNumber(AMS_OBIS_VOLTAGE_L1, sizeof(AMS_OBIS_VOLTAGE_L1), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 2;
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l1voltage = val;
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}
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val = getNumber(AMS_OBIS_VOLTAGE_L2, sizeof(AMS_OBIS_VOLTAGE_L2), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 2;
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l2voltage = val;
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}
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val = getNumber(AMS_OBIS_VOLTAGE_L3, sizeof(AMS_OBIS_VOLTAGE_L3), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 2;
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l3voltage = val;
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}
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val = getNumber(AMS_OBIS_CURRENT_L1, sizeof(AMS_OBIS_CURRENT_L1), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 2;
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l1current = val;
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}
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val = getNumber(AMS_OBIS_CURRENT_L2, sizeof(AMS_OBIS_CURRENT_L2), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 2;
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l2current = val;
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}
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val = getNumber(AMS_OBIS_CURRENT_L3, sizeof(AMS_OBIS_CURRENT_L3), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 2;
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l3current = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_IMPORT_COUNT, sizeof(AMS_OBIS_ACTIVE_IMPORT_COUNT), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 3;
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activeImportCounter = val / 1000.0;
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}
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val = getNumber(AMS_OBIS_ACTIVE_EXPORT_COUNT, sizeof(AMS_OBIS_ACTIVE_EXPORT_COUNT), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 3;
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activeExportCounter = val / 1000.0;
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}
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val = getNumber(AMS_OBIS_REACTIVE_IMPORT_COUNT, sizeof(AMS_OBIS_REACTIVE_IMPORT_COUNT), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 3;
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reactiveImportCounter = val / 1000.0;
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}
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val = getNumber(AMS_OBIS_REACTIVE_EXPORT_COUNT, sizeof(AMS_OBIS_REACTIVE_EXPORT_COUNT), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 3;
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reactiveExportCounter = val / 1000.0;
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}
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str_len = getString(AMS_OBIS_METER_MODEL, sizeof(AMS_OBIS_METER_MODEL), ((char *) (d)), str);
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if(str_len > 0) {
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meterModel = String(str);
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} else {
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str_len = getString(AMS_OBIS_METER_MODEL_2, sizeof(AMS_OBIS_METER_MODEL_2), ((char *) (d)), str);
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if(str_len > 0) {
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meterModel = String(str);
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}
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}
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str_len = getString(AMS_OBIS_METER_ID, sizeof(AMS_OBIS_METER_ID), ((char *) (d)), str);
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if(str_len > 0) {
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meterId = String(str);
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} else {
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str_len = getString(AMS_OBIS_METER_ID_2, sizeof(AMS_OBIS_METER_ID_2), ((char *) (d)), str);
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if(str_len > 0) {
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meterId = String(str);
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}
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}
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CosemData* meterTs = findObis(AMS_OBIS_METER_TIMESTAMP, sizeof(AMS_OBIS_METER_TIMESTAMP), ((char *) (d)));
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if(meterTs != NULL) {
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AmsOctetTimestamp* amst = (AmsOctetTimestamp*) meterTs;
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time_t ts = decodeCosemDateTime(amst->dt);
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if(meterType == AmsTypeAidon || meterType == AmsTypeKamstrup) {
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meterTimestamp = ts - 3600;
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} else {
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meterTimestamp = ts;
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}
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}
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val = getNumber(AMS_OBIS_POWER_FACTOR, sizeof(AMS_OBIS_POWER_FACTOR), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 4;
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powerFactor = val;
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}
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val = getNumber(AMS_OBIS_POWER_FACTOR_L1, sizeof(AMS_OBIS_POWER_FACTOR_L1), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 4;
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l1PowerFactor = val;
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}
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val = getNumber(AMS_OBIS_POWER_FACTOR_L2, sizeof(AMS_OBIS_POWER_FACTOR_L2), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 4;
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l2PowerFactor = val;
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}
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val = getNumber(AMS_OBIS_POWER_FACTOR_L3, sizeof(AMS_OBIS_POWER_FACTOR_L3), ((char *) (d)));
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if(val != NOVALUE) {
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listType = 4;
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l3PowerFactor = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_IMPORT_L1, sizeof(AMS_OBIS_ACTIVE_IMPORT_L1), ((char *) (d)));
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if (val != NOVALUE) {
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listType = 4;
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l1activeImportPower = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_IMPORT_L2, sizeof(AMS_OBIS_ACTIVE_IMPORT_L2), ((char *) (d)));
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if (val != NOVALUE) {
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listType = 4;
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l2activeImportPower = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_IMPORT_L3, sizeof(AMS_OBIS_ACTIVE_IMPORT_L3), ((char *) (d)));
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if (val != NOVALUE) {
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listType = 4;
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l3activeImportPower = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_EXPORT_L1, sizeof(AMS_OBIS_ACTIVE_EXPORT_L1), ((char *) (d)));
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if (val != NOVALUE) {
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listType = 4;
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l1activeExportPower = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_EXPORT_L2, sizeof(AMS_OBIS_ACTIVE_EXPORT_L2), ((char *) (d)));
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if (val != NOVALUE) {
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listType = 4;
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l2activeExportPower = val;
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}
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val = getNumber(AMS_OBIS_ACTIVE_EXPORT_L3, sizeof(AMS_OBIS_ACTIVE_EXPORT_L3), ((char *) (d)));
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if (val != NOVALUE) {
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listType = 4;
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l3activeExportPower = val;
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}
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if(meterType == AmsTypeKamstrup) {
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if(listType >= 3) {
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activeImportCounter *= 10;
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activeExportCounter *= 10;
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reactiveImportCounter *= 10;
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reactiveExportCounter *= 10;
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}
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if(l1current != 0)
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l1current /= 100;
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if(l2current != 0)
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l2current /= 100;
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if(l3current != 0)
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l3current /= 100;
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if(powerFactor != 0)
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powerFactor /= 100;
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if(l1PowerFactor != 0)
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l1PowerFactor /= 100;
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if(l2PowerFactor != 0)
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l2PowerFactor /= 100;
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if(l3PowerFactor != 0)
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l3PowerFactor /= 100;
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} else if(meterType == AmsTypeSagemcom) {
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CosemData* meterTs = getCosemDataAt(1, ((char *) (d)));
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if(meterTs != NULL) {
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AmsOctetTimestamp* amst = (AmsOctetTimestamp*) meterTs;
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time_t ts = decodeCosemDateTime(amst->dt);
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meterTimestamp = ts;
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}
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CosemData* mid = getCosemDataAt(58, ((char *) (d))); // TODO: Get last item
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if(mid != NULL) {
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switch(mid->base.type) {
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case CosemTypeString:
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memcpy(str, mid->oct.data, mid->oct.length);
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str[mid->oct.length] = 0x00;
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meterId = String(str);
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break;
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case CosemTypeOctetString:
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memcpy(str, mid->str.data, mid->str.length);
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str[mid->str.length] = 0x00;
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meterId = String(str);
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break;
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}
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}
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}
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lastUpdateMillis = millis();
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}
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if(meterConfig->wattageMultiplier > 0) {
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activeImportPower = activeImportPower > 0 ? activeImportPower * (meterConfig->wattageMultiplier / 1000.0) : 0;
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activeExportPower = activeExportPower > 0 ? activeExportPower * (meterConfig->wattageMultiplier / 1000.0) : 0;
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reactiveImportPower = reactiveImportPower > 0 ? reactiveImportPower * (meterConfig->wattageMultiplier / 1000.0) : 0;
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reactiveExportPower = reactiveExportPower > 0 ? reactiveExportPower * (meterConfig->wattageMultiplier / 1000.0) : 0;
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}
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if(meterConfig->voltageMultiplier > 0) {
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l1voltage = l1voltage > 0 ? l1voltage * (meterConfig->voltageMultiplier / 1000.0) : 0;
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l2voltage = l2voltage > 0 ? l2voltage * (meterConfig->voltageMultiplier / 1000.0) : 0;
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l3voltage = l3voltage > 0 ? l3voltage * (meterConfig->voltageMultiplier / 1000.0) : 0;
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}
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if(meterConfig->amperageMultiplier > 0) {
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l1current = l1current > 0 ? l1current * (meterConfig->amperageMultiplier / 1000.0) : 0;
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l2current = l2current > 0 ? l2current * (meterConfig->amperageMultiplier / 1000.0) : 0;
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l3current = l3current > 0 ? l3current * (meterConfig->amperageMultiplier / 1000.0) : 0;
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}
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if(meterConfig->accumulatedMultiplier > 0) {
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activeImportCounter = activeImportCounter > 0 ? activeImportCounter * (meterConfig->accumulatedMultiplier / 1000.0) : 0;
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activeExportCounter = activeExportCounter > 0 ? activeExportCounter * (meterConfig->accumulatedMultiplier / 1000.0) : 0;
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reactiveImportCounter = reactiveImportCounter > 0 ? reactiveImportCounter * (meterConfig->accumulatedMultiplier / 1000.0) : 0;
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reactiveExportCounter = reactiveExportCounter > 0 ? reactiveExportCounter * (meterConfig->accumulatedMultiplier / 1000.0) : 0;
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}
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threePhase = l1voltage > 0 && l2voltage > 0 && l3voltage > 0;
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if(!threePhase)
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twoPhase = (l1voltage > 0 && l2voltage > 0) || (l2voltage > 0 && l3voltage > 0) || (l3voltage > 0 && l1voltage > 0);
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// Special case for Norwegian IT/TT meters that does not report all values
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if(meterConfig->distributionSystem == 1) {
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if(threePhase) {
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if(l2current == 0.0 && l1current > 0.0 && l3current > 0.0) {
|
|
l2current = (((activeImportPower - activeExportPower) * sqrt(3)) - (l1voltage * l1current) - (l3voltage * l3current)) / l2voltage;
|
|
if(activeExportPower == 0.0) {
|
|
l2current = max((float) 0.0, l2current);
|
|
}
|
|
}
|
|
} else if(twoPhase && l1current > 0.0 && l2current > 0.0 && l3current > 0.0) {
|
|
l2voltage = sqrt(pow(l1voltage - l3voltage * cos(60.0 * (PI/180.0)), 2) + pow(l3voltage * sin(60.0 * (PI/180.0)),2));
|
|
threePhase = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
CosemData* IEC6205675::getCosemDataAt(uint8_t index, const char* ptr) {
|
|
CosemData* item = (CosemData*) ptr;
|
|
int i = 0;
|
|
char* pos = (char*) ptr;
|
|
while(pos-ptr < 900) {
|
|
item = (CosemData*) pos;
|
|
if(i == index) return item;
|
|
switch(item->base.type) {
|
|
case CosemTypeArray:
|
|
case CosemTypeStructure:
|
|
pos += 2;
|
|
break;
|
|
case CosemTypeOctetString:
|
|
case CosemTypeString:
|
|
pos += 2 + item->base.length;
|
|
break;
|
|
case CosemTypeLongSigned:
|
|
case CosemTypeLongUnsigned:
|
|
pos += 3;
|
|
break;
|
|
case CosemTypeDLongSigned:
|
|
case CosemTypeDLongUnsigned:
|
|
pos += 5;
|
|
break;
|
|
case CosemTypeLong64Signed:
|
|
case CosemTypeLong64Unsigned:
|
|
pos += 9;
|
|
break;
|
|
case CosemTypeNull:
|
|
pos += 1;
|
|
break;
|
|
default:
|
|
pos += 2;
|
|
}
|
|
i++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
CosemData* IEC6205675::findObis(uint8_t* obis, int matchlength, const char* ptr) {
|
|
CosemData* item = (CosemData*) ptr;
|
|
int ret = 0;
|
|
char* pos = (char*) ptr;
|
|
while(pos-ptr < 900) {
|
|
item = (CosemData*) pos;
|
|
if(ret == 1) return item;
|
|
switch(item->base.type) {
|
|
case CosemTypeArray:
|
|
case CosemTypeStructure:
|
|
pos += 2;
|
|
break;
|
|
case CosemTypeOctetString: {
|
|
ret = 1;
|
|
uint8_t* found = item->oct.data;
|
|
int x = 6 - matchlength;
|
|
for(int i = x; i < 6; i++) {
|
|
if(found[i] != obis[i-x]) ret = 0;
|
|
}
|
|
} // Fallthrough
|
|
case CosemTypeString: {
|
|
pos += 2 + item->base.length;
|
|
break;
|
|
}
|
|
case CosemTypeLongSigned:
|
|
case CosemTypeLongUnsigned:
|
|
pos += 3;
|
|
break;
|
|
case CosemTypeDLongSigned:
|
|
case CosemTypeDLongUnsigned:
|
|
pos += 5;
|
|
break;
|
|
case CosemTypeLong64Signed:
|
|
case CosemTypeLong64Unsigned:
|
|
pos += 9;
|
|
break;
|
|
case CosemTypeNull:
|
|
pos += 1;
|
|
break;
|
|
default:
|
|
pos += 2;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
uint8_t IEC6205675::getString(uint8_t* obis, int matchlength, const char* ptr, char* target) {
|
|
CosemData* item = findObis(obis, matchlength, ptr);
|
|
if(item != NULL) {
|
|
switch(item->base.type) {
|
|
case CosemTypeString:
|
|
memcpy(target, item->str.data, item->str.length);
|
|
target[item->str.length] = 0;
|
|
return item->str.length;
|
|
case CosemTypeOctetString:
|
|
memcpy(target, item->oct.data, item->oct.length);
|
|
target[item->oct.length] = 0;
|
|
return item->oct.length;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
float IEC6205675::getNumber(uint8_t* obis, int matchlength, const char* ptr) {
|
|
CosemData* item = findObis(obis, matchlength, ptr);
|
|
return getNumber(item);
|
|
}
|
|
|
|
float IEC6205675::getNumber(CosemData* item) {
|
|
if(item != NULL) {
|
|
float ret = 0.0;
|
|
char* pos = ((char*) item);
|
|
switch(item->base.type) {
|
|
case CosemTypeLongSigned: {
|
|
int16_t i16 = ntohs(item->ls.data);
|
|
ret = i16;
|
|
pos += 3;
|
|
break;
|
|
}
|
|
case CosemTypeLongUnsigned: {
|
|
uint16_t u16 = ntohs(item->lu.data);
|
|
ret = u16;
|
|
pos += 3;
|
|
break;
|
|
}
|
|
case CosemTypeDLongSigned: {
|
|
int32_t i32 = ntohl(item->dlu.data);
|
|
ret = i32;
|
|
pos += 5;
|
|
break;
|
|
}
|
|
case CosemTypeDLongUnsigned: {
|
|
uint32_t u32 = ntohl(item->dlu.data);
|
|
ret = u32;
|
|
pos += 5;
|
|
break;
|
|
}
|
|
case CosemTypeLong64Signed: {
|
|
int64_t i64 = ntohll(item->l64s.data);
|
|
ret = i64;
|
|
pos += 9;
|
|
break;
|
|
}
|
|
case CosemTypeLong64Unsigned: {
|
|
uint64_t u64 = ntohll(item->l64u.data);
|
|
ret = u64;
|
|
pos += 9;
|
|
break;
|
|
}
|
|
}
|
|
if(pos != NULL) {
|
|
if(*pos++ == 0x02 && *pos++ == 0x02) {
|
|
int8_t scale = *++pos;
|
|
ret *= pow(10, scale);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
return NOVALUE;
|
|
}
|
|
|
|
time_t IEC6205675::getTimestamp(uint8_t* obis, int matchlength, const char* ptr) {
|
|
CosemData* item = findObis(obis, matchlength, ptr);
|
|
if(item != NULL) {
|
|
switch(item->base.type) {
|
|
case CosemTypeOctetString: {
|
|
if(item->oct.length == 0x0C) {
|
|
AmsOctetTimestamp* ts = (AmsOctetTimestamp*) item;
|
|
return decodeCosemDateTime(ts->dt);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|