How to access the functions of the module diagnostics and channel diagnostics of an AS-i device

At a Glance

The functions of the module or channel diagnostics display the current errors in which are classed according to their category:

internal errors (internal software errors, communication error with the processor, configuration, parametering or command error),
external faults (slave device failed, AS-i power supply switched off, terminal error, difference between physical configuration and Control Expert configuration),
other errors (module absent or switched off).

A faulty module and channel become apparent when certain lights change to red, such as:

in the rack configuration screen by the presence of a red square in the position of the faulty AS-i module,
in all the module level screens (Description and Default tabs),
- in the module zone with the LED I/O.
in all the channel level screens (Description, Config, Debug and Default tabs),
- in the module zone with the I/O LED,
- in the channel zone with the LED of channel fault.
in the faulty screen accessible with the Fault tab where the fault diagnostics are described.

The fault is also signaled:

on the module, through the centralized display,
by the dedicated language objects: CH_ERROR (%Ir.m.c.ERR) and module error MOD_ERROR (%Ir.m.MOD.ERR), %MWr.m.MOD.2, etc., and the status words.

Procedure for accessing the diagnostics

The following table presents the procedure to access the screen Diagnosticsof the AS-i channel and module.

Step	Action
1	Open the AS-i module to be diagnosed.
2	Access the configuration screen by clicking on the Fault tab . Result: The list of module errors appears.