Can Communication (Sgc 120 Only); About The Can Communication Protocol; Can Communication Structure - Deif SGC 120 User Manual

12. CAN communication (SGC 120 only)

12.1 About the CAN communication protocol

SGC 120 supports a CAN based protocol, which is used to read measurement values, status of alarms and derived calculations
(such as cumulative power), as well as to send mode change and start/stop commands to the controller.
Connection details:
• Baud rate used for communication is 250 kbps
• ID of the controller is fixed to 0x01
• ID scheme for CAN communication is Standard ID (not extended ID)
• Packet size used for communication is 8 bytes

12.2 CAN communication structure

The controller continuously broadcasts measurement values, status of alarms and commands, and derived calculations. Additionally,
a set of commands can be sent to the controller. Response to the commands is a part of the data that is broadcast.
Communication structure, page 0
Register offset Value
0 Protocol revision
1 Generator L1-N voltage
2 Generator L2-N voltage
Communication structure, page 1
Register offset Value
3 Generator L2-L3 voltage
4 Generator L1-L2 voltage
5 Generator L3-N voltage
Communication structure, page 2
Register offset Value
6 Generator L3-L1 voltage
7 Generator L2 frequency
8 Generator L1 frequency
Communication structure, page 3
Register offset Value
9 Generator power factor L2
10 Generator L3 frequency
11 Generator power factor L1
USER MANUAL 4189341226A UK
Scale factor Unit
- -
1 V
1 V
Scale factor Unit
1 V
1 V
1 V
Scale factor Unit
1 V
1 Hz
1 Hz
Scale factor Unit
1 -
1 Hz
1 -
Bits/Sign
Unsigned
Unsigned
Unsigned
Bits/Sign
Unsigned
Unsigned
Unsigned
Bits/Sign
Unsigned
Unsigned
Unsigned
Bits/Sign
Unsigned
Unsigned
Unsigned
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