Module Status And Diagnostics - Motorola ACE3600 RTU Owner's Manual

Module Status and Diagnostics

In the event of AO Module failure, the I/O module ERR LED will be lit. The event is
registered by the CPU in the Error Logger. AO Module failure status is also visible to the user
application program.
In addition to the ERR LED, the module includes a voltage output (Vout), current output
(Iout), and calibration (CAL) LED for each output.
CAL Vout
On On
On Off
On On
Off On
Off On
Off Off
The AO module can be diagnosed and monitored using the STS Hardware Test utility. The
Hardware Test verifies that the module is operational, shows the type and actual value of each
output, enables calibration, and presents the ROM data calibration factors. The AO type can
be set either in the user application program or in the Hardware Test. To set the output value
in the Hardware test, the user application program must be stopped or the AO module frozen.
To calibrate the output in the Hardware test, the user application program must be stopped or
the AO module frozen.
In the Hardware Test utility, it is possible to set the AO module to Freeze Mode. In this mode,
the AOs will keep the last value they had at the time they were frozen. Freeze mode enables
testing the inputs and outputs while the user program is running.
Iout Indication
On Neither output is calibrated.
On Iout is uncalibrated.
Off Vout is uncalibrated.
On Row value for testing purpose is defined by the user,
either using HW test or user application program to
send raw data.
Off Vout is defined by the user, either using HW test or user
application program.
On Iout is defined by the user, either using HW test or user
application program.
13-6
Analog Output Module