Rockwell Automation 1492-CM1771-LD007 Field Conversion Module User Manual
Rockwell Automation Equipment
Digital I/O Conversion Module
(Cat 1492-CM1771-LD008F)
I. Description
This Digital I/O Conversion system provides for the conversion of (1) 1771, 16 point I/O modules to be converted
to (2) 1756, 8 point I/O module and consists of the following:
(1) 1771 Modules (16pt) to (2) 1756 Module (8pt)
(1) Conversion Modules: 1492-CM1771-LD008F
(1) Cable: 1492-CONCAB005S1 (Table 2)
(1) Conversion Mounting Assembly: 1492-MUA… (Table 1)
This conversion is accomplished without the removal of any field wires from the existing 1771 Swing Arm. The
existing 1771 Swing Arm fits directly onto the edge connector of the 1492 Conversion Module. On one end of the
1492 Cable is (1) connector for the Conversion Module. On the other end are (2) Removable Terminal Blocks
(RTBs) for the (2) 1756 I/O modules, as shown in the photo below. The I/O signals are routed through the 1492
Conversion Module and the 1492 Cable to the appropriate terminals on the (2) 1756 I/O modules per the Wiring
Diagrams in Section VI. As standard, both portions of the 1492 Cables are 0.5M long, but we also offer a 1.0M
cable length. Refer to the footnotes in Table 2, Section III for further details.
De-energize and lockout any and all power to all I/O field devices connected to the A-B 1771 I/O
chassis, and the power to the 1771 I/O chassis 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
1492-CM1771-LD008F Conversion Module
Conversion Compatibility
and Product I.D. Label
37-Pin Connector for cable
1492-CONCAB005S1
Cable
1492-CONCAB005S1
PN-114280
DIR 10000060091 (Version 01)
Publication 1492-IN038B-EN-E
Printed in U.S.A.