Specifications

7SR242 Duobias Data Communications
©2010 Siemens Protection Devices Limited Chapter 4 Page 24 of 43
Address Name Format Description
31208 W2 Secondary Ib FP_32BITS_3DP
1
A
31210 W2 Secondary Ic FP_32BITS_3DP
1
A
31212 W2 Nominal Ia FP_32BITS_3DP
1
x Inom
31214 W2 Nominal Ib FP_32BITS_3DP
1
x Inom
31216 W2 Nominal Ic FP_32BITS_3DP
1
x Inom
31218 W2 Line Ia FP_32BITS_3DP
1
kA
31220 W2 Line Ib FP_32BITS_3DP
1
kA
31222 W2 Line Ic FP_32BITS_3DP
1
kA
31224 W2 Relay Ia FP_32BITS_3DP
1
x Inom
31226 W2 Relay Ib FP_32BITS_3DP
1
x Inom
31228 W2 Relay Ic FP_32BITS_3DP
1
x Inom
32400 W1 I Phase A Max FP_32BITS_3DP Max Current W1 Ia
32402 W1 I Phase B Max FP_32BITS_3DP Max Current W1 Ib
32404 W1 I Phase C Max FP_32BITS_3DP Max Current W1 Ic
32406 W2 I Phase A Max FP_32BITS_3DP Max Current W2 Ia
32408 W2 I Phase B Max FP_32BITS_3DP Max Current W2 Ib
32410 W2 I Phase C Max FP_32BITS_3DP Max Current W2 Ic
1) FP_32BITS_3DP: 2 registers - 32 bit fixed point, a 32 bit integer containing a value to 3 decimal places e.g. 50000 sent = 50.000
2) UINT16: 1 register - standard 16 bit unsigned integer
3) Sequence of 8 registers containing an event record. Read address 30002 for 8 registers (16 bytes), each read returns the earliest event record and removes it from the
internal store. Repeat this process for the number of events in the register 30001, or until no more events are returned. (the error condition exception code 2)
Holding Registers (Read Write values)
Address Description
40001 Time Meter
Event Format
The format of the event record is defined by the zero byte. It signifies the type of record which is used to decode
the event information. The zero byte can be one of the following.
Type Description
1 Event
2 Event with Relative Time
4 Measurand Event with Relative Time