GAI-Tronics 12578-002 Monitored Input Module (MIM) - Manual (Page 2)

Pub. 42004-711L2B
Model 12578-002 Monitored Input Module (MIM) Page 2 of 12
f:\standard ioms - current release\42004 instr. manuals\42004-711l2b.doc
01/09
Each input may be independently configured to operate in one of the following five modes:
Input
Mode
Description
Comments
0 Deactivate circuit Input is not monitored.
1 IDC line supervision
multiple switch Detects open circuit, ground faults, and switch actuation from one or
more normally-open dry contact closures.
2 IDC single N.O. switch Detects open circuit, wire-to-wire short circuit, ground faults, and
switch actuation from a single normally-open dry contact closure.
3 IDC single N.C. switch Detects open circuit, wire-to-wire short circuit, ground faults, and
switch actuation from a single normally-closed dry contact closure.
4 IAC line supervision Reserved for 12579-002 Monitored Relay Module
5 IDC non-supervised N.O.
dry switch Detects a switch actuation from one or more normally-open dry
contact closures.
5 IDC non-supervised, wet
switch Detects the presence or absence of 24 V dc voltage depending on
applicable onboard jumper settings.
In order to utilize a particular input mode with a particular input, the appropriate external connections
must be made between the MIM and the field devices. Also, the input modes must be added to the MCU
Configuration using the ADVANCE Console System Configuration Software. Refer to the Installation
Guidelines section on page 4 for further details.