176 Communication Module Indicators
Trident Planning and Installation Guide
CM Communication Indicators
The CM communication indicators identify the type of communication occurring
on the controller. The TX light indicates the CM is transmitting a message and the
RX light indicates the CM is receiving a message.
Serial 1 Serial 2 Serial 3 Net 1 Net 2
RX/TX RX/TX RX/TX Link RX/TX Link RX/TX Description
Green
blinking
—
1
— — — Normal response. CM is
communicating with the
attached Modbus master/slave
device.
— Green
blinking
— — — Normal response. CM is
communicating with the
attached Modbus master/slave
device.
——Green
blinking
— — Normal response. CM is
communicating with the
attached Modbus master/slave
device.
———Green
steady
Green
blinking
— — CM is communicating with
TriStation or with an Ethernet
device through the Net 1 port.
—————Green
steady
Green
blinking
CM is communicating with
TriStation or with an Ethernet
device through the Net 2 port.
1. This symbol ( — ) means the indicator is not important for this condition.
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