GE Multilin W650 - B.2.1 Functions Used

B-2 W650 Wind Generator Protection System GEK-113032A
B.2 MODBUS W650 APPENDIX B
B
B.2MODBUS W650 B.2.1 FUNCTIONS USED
The protocol used is standard ModBus/RTU, so any program or PLC will be able to easily communicate with W650 units.
W650 always works as slave, which means that it never starts the communications. It is always the master who initiates
communication.
Only one ModBus/RTU functions subgroup are implemented:
• Reading function 3 (or 4).
• Writing function 16.