INTRODUCTION
I-E96-301B
5 - 1
SECTION 5 - OPERATING PROCEDURES
INTRODUCTION
This section explains the start-up and operation for the Univer-
sal Analog Input Slave Module (IMASI03).
START-UP
Communication between the IMASI03 slave and MFP master
starts when the two modules are configured correctly (refer to
). The slave address in Function Code 215 and 216
must be the same as the address set on the address dipswitch.
Upon start-up, when power is applied to the IMASI03 and the
MFP is put into execute mode, all channels are initially marked
bad quality until the MFP downloads the configuration data
and the slave digitizes a valid input signal.
OPERATION
The MFP sends an interrupt command to the IMASI03 when-
ever the MFP sends new configuration data. This interrupt
causes the slave to read the configuration data and initialize its
input handling, conversion, and compensation calculations.
Once configured by the master, the IMASI03 slave scans its
inputs and makes corrected values available to the master over
the slave expander bus. The master reads the values from the
slave during its normal segment cycle operations. Refer to
for more information about IMASI03 theory of
operation.
ON-BOARD INDICATORS
The IMASI03 has one red/green LED indicator which shows
the operating status. The LED will:
•
Flash red on power-up.
•
Remain off after passing on board diagnostics until the
IMASI03 is configured by the MFP.
•
Show solid green after the master MFP downloads configu-
ration data.
•
Show solid green during normal running.
•
Blink green when the MFP which configured the IMASI03
enters configure mode from execute mode.
