Rockwell Automation 1492-CM800-LD008 User Manual
Field Wire Conversion Module for Modicon B825-016 to 1756-IB16
(Cat 1492-CM800-LD008)
10000021883 (Version 00)
Printed in Germany
Local language (French, Italian, German & Spanish) versions of this document can be downloaded by going to www.ab.com.
In the left margin click on Publications Library and Literature Library. In the Search Area (right margin), Search by Catalog
Number and in the Search box type in the catalog number of the conversion system component.
I. Module Description
The 1492-CM800-LD008 conversion module provides field wire signal conversion from a Modicon® B825-016, 20 to
28Vdc, 16-pt input module to a ControLogix 1756-IB16, 10 to 31.2Vdc, 16-pt input module. The conversion module
provides the mating connections to the B825-016 swing-arm (terminal block) with the attached field wires. It routes
those signals, via its 20-pin connector and a 1492-CABLEX pre-wired cable to compatible terminals of the 1756IB16 (refer to the Wiring Diagram on page 2).
II. Module Installation
The 1492-CM800-LD008 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).
20-Pin Connector for 1492-CABLE
X
Mating Connector for
B800 Terminal Block
Conversion Module Compatible 800
Input Module
Compatible 1756
Input Module
Required 1492 Cable
1492-CM800-LD008 B825-016 1756-IB16 1492-CABLEX
1492-CM800-LD008 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
(2)
10000021883 (Version 00)
IV. Conversion Module Wiring Diagram
The following diagram shows the connections from the existing B825-016 swing-arm, through the conversion module, 1492
cable and to the 1756-IB16 input module. The diagram can be used as an aid in possible system troubleshooting.
1756-IB16
1492-CABLE003X
1492-CM800-LD008
Conversion: B825-016 to 1756-IB16 with 1492-CM800-LD008
B825-016 Swing Arm
Conversion Module Installation and Application Considerations
The input delay times for the B825-016 module versus 1756-IB16 module are as follows:
B825-016 1756-IB16
a) Off-to-On Delay 2.5ms (typical), 11ms (max) 1ms (plus selectable filter)
b) On-to-Off Delay 2.5ms (typical), 11ms (max) 2ms (plus selectable filter)
Refer to your B825-016 and 1756-IB16 Installation Manual wiring schematics and diagrams for more details.
[Reference Doc: 41170-758 (Version 03)]
9 1
1
19
2
3
3
4
4
5
5
6
6
7
7
8
8
9
19
10
1111
1212
1313
14
1515
1616
1717
18 18
20
14
2
Input 13
Input 15
Input 14
Input 16
Input 5
Input 7
Input 6
Input 8
Input 1
Input 3
Input 2
Input 4
Input 9
Input 11
Input 10
Input 12
Common
Common
10
20
Common
+24 VDC
10
GND-0
IN-0
1
IN-1
2
IN-2
3
IN-3
4
IN-4
5
IN-5
6
IN-6
7
IN-7
8
IN-8
11
IN-9
12
IN-10
13
IN-11
14
IN-12
15
IN-13
16
IN-14
17
IN-15
18
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
GND-1
20
9
GND-0
19
GND-1
+
-
There are several key application considerations and system specifications (bottom of drawing) when using
these components (conversion module, cable and output module). Read and understand these considerations before installation.
WARNING
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