ABB UNITROL 1020 - Page 163

 Chapter 6 - Operation
UNITROL 1020 User Manual 3BHS335648 E82 155
MODBUS configuration (RS485)
Communication \ MODBUS Supervision \ Remote Access
The MODBUS Slave-ID is the same used for MODBUS RS485. For configuration refer to
Chapter 3.4.6 Modbus for Remote Access.
Keep-alive action
Configuration parameters for RS485 communication ONLY.
Active
MODBUS over RS485 not active. VDC can be activated.
MODBUS over RS485 active. VDC should not be activated.
Character frame
Protocol Bit rate (b/s)