Introduction
September 2023
Installation, Operations and Maintenance Manual
MAN-01-09-91-0726-EN Rev. 2
2
Section 1: Introduction
1.2
available. The supplied system uses standard RS485 and Modbus RTU protocol for the valve
primary master and the other a hot stand-by master. The two chassis may switch roles of
Each chassis consists of two Modbus Slave modules located in Slots 3 and 4. These slave
modules communicate with redundant Modbus host systems up line. The CoProcessor
down time. LCD touch panel provides valve actuator monitor and control of all valves in case