Siemens 7SR158 Argus, Technical Manual

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Chapter 4) 7SR158 - Data Communications
© 2013 Siemens Protection Devices Limited Chapter 4 - Page 25 of 66
Key Description
F# L Fault Number low byte.
F# H Fault Number high byte.
Meas Measurand format R32.23, sent least significant byte first.
The following tables show the fields in the different event records as they are returned.
Byte 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Content 1 0 FUN INF DPI 0 0 0 0 0 0 0 ms L
ms
H
Mi Ho
Event Type 1 Format.
Byte 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Content 2 0 FUN INF DPI RT L
RT
H
F# L F# H 0 0 0 ms L
ms
H
Mi Ho
Event Type 2 Format.
Byte 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Content 4 0 FUN INF Meas 0 0 0 0 ms L
ms
H
Mi Ho
Event Type 4 Format.
4.2.6 EVENTCOUNT
The EVENTCOUNT register contains the current number of events in the relay's event buffer.
On reception this register should be interpreted as a 16 bit integer.
4.2.7 TIME_METER
The TIME_METER register contains the device's time. The time must be read or written in one step;
therefore the quantity should be 4 registers. Failing to do this will result in an exception code 2. The
time format is 8 bytes as follows.
The following table describes the fields in the time.
Key Description
ms L Time Stamp Milliseconds low byte.
ms H Time Stamp Milliseconds high byte.
Mi Time Stamp Minutes (MSB = invalid, time not set > 23 hours).
Ho Time Stamp Hours (MSB = Summer time flag).
Da Time Stamp Days.
Mo Time Stamp Months.
Ye L Time Stamp Years low byte.
Ye H Time Stamp Years high byte (Not Used).
The following table shows the fields in the time as they are returned.