3.2 Control elements
Fig. 7: Control elements
1 "Modbus RTU" status LEDs
2 "Modbus RTU" socket
3 Device LEDs
Tab. 25: "Modbus RTU" status LEDs
Colour Cause
red
(flashing)
The Modbus does not function correctly.
yellow The Modbus is currently sending or
receiving.
green The Modbus PCB is supplied with
voltage.
Refer to the "Operating Instructions for the Solenoid Metering
Pump gamma /X, GMXa" for the meaning of the device LEDs
Supplementary Operating Instructions for Modbus RTU
41