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FIELDBUS COMMUNICATION
STATUS
Approved
SECURITY LEVEL
Public
DOCUMENT ID.
1SFC132374M0201
REV.
B
LANG.
en
PAGE
22/23
© Copyright 2019 ABB. All rights reserved.
5.
MTQ22-FBP LED Diagnostics in Case of
Error
Diagnostic information is locally displayed using two Light Emitting Diodes (LEDs) per PSE
device interface. The meaning of the LEDs is as follows.
LED
Port 1, 2, 3, 4
Explanation
Off
Disabled (no device configured)
Green blinking
Startup (waiting for device)
Green on
Configured device identified and data exchange running
Red blinking
Communication fault
Green / Red alternating
Address mismatch between expected device address and con-
nected device address. e.g. caused by swapping two devices.
Wrong device type connected.
LED RDY
General Status
Explanation
Green on
Normal
Red blinking
Minor error, e.g. wrong configuration or IP address already
available in the network
Red on
Major internal fault. If the error is permanent after reboot re-
place the device.
LED TCP
Communication Status
Explanation
Green blinking
Waiting for Modbus TCP connection
Green on
At least one Modbus TCP connection established
Red blinking
One or more (as parameterized) connections timed out
Red on
Fatal error
Green / Red alternating
Error in the TCP/IP configuration