The state of the module and the INTERBUS network can be seen from the LEDs. Signaling conforms to the INTERBUS and Premium standard.
The LEDs look like this:
The
RUN,
ERR,
COM,
I/O,
FAIL(or HF), and
BSA LEDs are the same as those on the TSX IBY 100 module and enable a
diagnostic to be performed on the module and on the bus.
The COL LED is used to detect an address conflict:
