Rockwell Automation 1492-CM800-LA001 Field Wire Conv. Module for Modicon B875-111 to 1756-IF16 - Manual

Field Wire Conversion Module for Modicon B875-111 to 1756-IF16
in Differential Current of Differential Voltage Mode
(Cat 1492-CM800-LA001)
10000021823 (Version 00)
Printed in Germany
Local language (French, Italian, German & Spanish) versions of this document can be downloaded by going to www.ab.com.
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Number and in the Search box type in the catalog number of the conversion system component.
I. Module Description
The 1492-CM800-LA001 conversion module provides field wire signal conversion from a Modicon® B875-111,
analog, 8-channel, differential current or voltage input module to a ControLogix 1756-IF16, analog, 8-channel, differ-
ential current or voltage input module. The conversion module provides the mating connections to the B875-111
swing-arm (terminal block) with the attached field wires. It routes those signals, via its 25-pin, D-shell connector and
a 1492-ACABLEUC or 1492-ACABLEUD pre-wired cable to the compatible terminals of the 1756-IF16 (refer to
the Wiring Diagrams on pages 2 and 3).
II. Module Installation
The 1492-CM800-LA001 conversion module must be installed in a 1492 conversion base-plate and cover-plate
assembly. The installation of the module into the assembly is explained in the Installation Manual that ships with the
conversion assembly. For a list of compatible assemblies refer to Appendix A.
III. Conversion Module Compatibility Matrix
 This is the cable length in meters and tenths of meters (e.g. 015 = 1.5 meters). Recommended cable
length is 003 (00.3 meters).
25-Pin D-Shell Connector for 1492-ACABLEUC or ACABLEUD
Mating Connector for
B800 Terminal Block
Conversion Module Compatible 800
Input Module
Compatible 1756
Input Module
Required 1492 Cable
1492-CM800-LA001 B875-111 (Diff-V) 1756-IF16 (Diff-V) 1492-ACABLEUC
1492-CM800-LA001 B875-111 (Diff-C) 1756-IF16 (Diff-C) 1492-ACABLEUD
1492-CM800-LA001 Conversion Module
De-energize and lockout any and all power to all I/O field devices connected to the Modicon 800 I/O
housing, and the power to the 800 I/O housing itself. Ensure all power is de-energized and locked out to
any device in the control cabinet where the conversion is to be performed. Ensure work is performed by
qualified personnel. WARNING