Passive Relay Time date-format conversion

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By Vishal Patel , 9 February, 2021
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General discussion

Hi Mikko,

I am reading from IS15959-2 meter and using libguruxdlmsc C Library.

OBIS Code: 1.0.96.128.30.255 (Passive Relay Time)
Attribute-Index: 2
Object-type: DLMS_OBJECT_TYPE_DATA

I'm reading this from meter. Meter responding properly. I'm facing issue in conversion.

DLMS_OBJECT_TYPE_DATA response is of structure-type. from obj_toString() API, I'm getting below response:
Received value -> Index: 2 Value: [300, 1800, 4, 07 E6 0C 0B FF 10 39 00 FF 01 4A 00]

But I need response something like;
Expected value -> Index: 2 Value: [300,1800,5,"8/1/2022 11:00:00 AM"]

Can you plz help me, where and what I can change in DLMS-C-Library or outside of DLMS-C-Library to get the desired output?

Regards,
Vishal PATEL

Kurumi

5 years 4 months ago

Hi,

Date-time is sent as octet-string in DLMS. Because there is no way to find out that this is a date-time, you need to modify obj_toString and change the received byte array to date-time using the dlms_changeType -method.

BR,
Mikko

Vishal Patel

5 years 4 months ago

Hi Mikko,

Meter RTC Timezone is -> Index: 3 Value: 330

I'm able to convert to below value for Passive Relay Time
Index: 2 Value: [300, 1800, 4, 12/11/2022 16:57:00 UTC--05:-30]

How can I convert from Utc to Normal time as similar APIs present in C# library but couldn't fine in ANSI C library ?
Index: 2 Value: [300,1800,5,"8/1/2022 11:00:00 AM"]

Regards,
Vishal