Hardware reference guide

I/O Modules
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35013379 02 October 2007
I/O Configuration for Discrete Input/Output Modules
Overview This section provides information on configuration of 4 In/4 Out and 16 In/8 Out
modules.
4-Point Input/4-
Point Output
Module
The following shows the 4 In/4 Out module:
z 140DDM69000 (125 Vdc Input/High Power Output)
I/O Map Register
Assignments
The 140DDM69000 input/output module can be configured as either eight
contiguous 1x references; or as one 3x register and either eight contiguous 0x
references or one 4x register.
I/O Map Register
(Inputs)
The following figure shows the 3x input register.
I/O Map Status
Byte (Inputs)
There is no input I/O map status byte associated with the inputs.
I/O Mapping
When I/O mapping module inputs using discrete (1x) references in remote drops,
users should not split discrete words between drops. The lowest discrete reference
for a drop should start on a word boundary.
Failure to follow these instructions can result in injury or equipment damage.
CAUTION
Output 1 Fault
Input 1
23456781
Input 2
Input 3
Input 4
Output 2 Fault
Output 3 Fault
Output 4 Fault
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com