Deif SGC 120, User Manual

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Byte Field Remarks
4 Number of registers to read - high byte
Number of registers to read must be between 1 to 255
5 Number of registers to read - low byte
6/7 Error check CRC
Normal response from SGC 120/121 slave for Function 3
Byte Field Remarks
0 Slave address As configured in the controller.
1 Function code (0x03)
2 Byte count (n)
Equals to number of registers to be read times two. 8-
bit even number between 2 to 250.
3 First register - high byte Number of registers that have been written.
4 First register - low byte
... ...
1+n Last register - high byte
2+n Last register - low byte
3+2n/4+2n Error check CRC
10.2 Register map (function code 03)
Register
address
Parameter Scale factor
Unit/
Interpretation
Bits/Sign
0 Protocol revision - - Unsigned
1 Generator L1-N voltage 0.1 V Unsigned
2 Generator L2-N voltage 0.1 V Unsigned
3 Generator L3-N voltage 0.1 V Unsigned
4 Generator L1-L2 voltage 0.1 V Unsigned
5 Generator L2-L3 voltage 0.1 V Unsigned
6 Generator L3-L1 voltage 0.1 V Unsigned
7 Generator L1 frequency 0.1 Hz Unsigned
8 Generator L2 frequency 0.1 Hz Unsigned
9 Generator L3 frequency 0.1 Hz Unsigned
10 Generator power factor L1 0.01 -- Unsigned
11 Generator power factor L2 0.01 -- Unsigned
12 Generator power factor L3 0.01 -- Unsigned
13 Generator average power factor 0.01 -- Unsigned
14 Mains L1-N voltage 0.1 V Unsigned
15 Mains L2-N voltage 0.1 V Unsigned
16 Mains L3-N voltage 0.1 V Unsigned
17 Mains L1-L2 voltage 0.1 V Unsigned
18 Mains L2-L3 voltage 0.1 V Unsigned
19 Mains L3-L1 voltage 0.1 V Unsigned
USER MANUAL 4189341226A UK Page 49 of 72