ProSoft Technology AN-X2-SQD - Manual (Page 47)

AN-X2-SQD-MAS Page 41
Debug Mode
SYS or MS LED
The SYS or MS LED is used by the AN-X operating system and software to indicate the
state of operations and errors. Errors or status indication in boot mode cause the LED to
flash yellow. Otherwise, the LED flashes red.
The SYS or MS LED should be used in conjunction with the logs to locate the cause of
problems.
NET or NS LED – Network Status
The NET (or NS) LED shows the status of Remote I/O communication.
Color Meaning
Flashing or solid red One or more configured Remote drops is not active on the
network
Network error (CRC, stop, abort, etc.)
Yellow No configured Remote I/O and no Remote network activity
Green All configured blocks are active on the Remote I/O network
Off The AN-X2-SQD-MAS scans the network only when the
ControlLogix is in run mode
Fatal Errors
AN-X2 monitors its operation for “impossible” conditions and generates a fatal error if it
detects one. It generates a fatal error code on the SYS (or MS) LED by flashing 8 bits
followed by a pause. The least significant bit is first, with green for 1 and red for 0.
If a fatal error occurs, record the SYS Or MS) LED sequence and contact technical
support.