Information

Appendix A: Communicator LED Indicators
23 (26)
A Communicator LED Indicators
This LED guide describes the LED indications for Modbus TCP. For information
about other networks, refer to the user manual for the desired Communicator
network variant.
Before you can verify operation you must configure the Communicator.
Fig. 12 Communicator status (A), High level Network/Client (B), Subnetwork 2 (C) and
(D) Security Switch
LED A LED B LED C LED D
Operation
Status
Gateway
status
High level
Network/Client
Subnetwork Security switch
Off
No power
No power/
Exception/No IP
address
No power/
Exception/
Subnetwork
not running
No power/
Security switch
is unlocked/
Exception/
Fatal error
Green,
flashing
Startup
phase
Modbus TCP
online, no
messages
received
Running, one
or more nodes
are offline
N/A
Green
Operational Modbus TCP
online, at least
Running
Security switch
is locked
Anybus
®
Communicator
™
Startup Guide
SP2953 1.0 en-US