OVERVIEW
Synergy has integrated serial communications that are a compatible subset of the widely recognised Modbus RTU protocol
(slave). The serial communications (RS485) is accessible from the RJ12 connection.
MODUBUS COMMUNICATIONS CONFIGURATION
The Modbus communication settings are accessible from the Device menu:
Device >> Modbus Network Settings >> Address (1 – 32)
Device >> Modbus Network Settings >> Baud (9600 – 115200)
Device >> Modbus Network Settings >> Parity (Odd / Even)
(Data bits = 8, Stop bits = 1)
The communication parameters should be set before connecting the Modbus master.
MODBUS CONNECTOR (SOCKET) PIN-OUT (RJ12)
– VIEWED FROM FRONT
Pin1
– GND
Pin2
– Reserved*
Pin 3
– Not connected
Pin 4
– Not connected
Pin 5
– TXD0-A-OUT
Pin 6
– TXD1-B-OUT
MAN-SGY-012-V11 EC 5195
Fairford Electronics Ltd - Synergy Modbus RTU Programming Manual - 22nd February 2016
Page 2 of 59