Rockwell Automation 1492-CM800-LD015 User Manual
Fused Field Wire Conversion Module for Modicon B814-108 or B840-108
to 1756-OX8I
(Cat 1492-CM800-LD015)
10000021918 (Version 01)
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-LD015 conversion module provides field wire signal conversion from a Modicon® B814-108 or
B840-108 , 8-pt relay output to a ControLogix 1756-OX8I , 8-pt relay output module. The conversion module
provides the mating connections to the B814-108 or B840-108 swing-arm (terminal block) with the attached field wires.
It routes those signals, via its 40-pin connector and a 1492-CABLEY pre-wired cable to compatible terminals of the
1756-OX8I. To maintain the fusing functionality of the B814-108 and B840-108 output modules the conversion module
provides a mechanical fuse for each of the 8 converted output points (refer to the Wiring Diagrams on pages 2 and 3).
II. Module Installation
The 1492-CM800-LD015 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).
40-Pin Connector for 1492-CABLE
Y
Mating Connector for
B800 Terminal Block
Conversion Module Compatible 800
Output Module
Compatible 1756
Output Module
Required 1492 Cable
1492-CM800-LD0015 B814-108 1756-OX8I 1492-CABLE
Y
1492-CM800-LD0015 B840-108 1756-OX8I 1492-CABLE
Y
1492-CM800-LD015 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
Refer to conversion module Specifications Section: Maximum Operating Voltage
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10000021918 (Version 01)
IV. Conversion Module Wiring Diagram
The following diagram shows the connections from the existing B814-108 and B840-108 swing-arm, through the conversion module, 1492 cable and to the 1756-OX8I output module. The diagrams can be used as an aid in possible system
troubleshooting.
1756-OX8I
1492-CABLE003Y
1492-CM800-LD015
Conversion: B814-108 to 1756-OX8I with 1492-CM800-LD015
B814-108 Swing Arm
Conversion Module Installation and Application Considerations
The B814-108 relay module resistive current limits versus 1756-OX8I limits are as follows: (NOTE: for switching and inductive
current and voltage ratings, refer to the modules Installation Manual)
B814-108 1756-OX8I w/ 1492-CABLE003Y
a) Current/Point
3A Cont, 2A Switching 960VA or 150W DC 2A @ 30V DC/125V AC
The B814-108 is fused per output point. The 1756-OX8I is NOT fused. The 1492-CM800-LD015 provides a 5x20mm fuse
per 1756-OX8I point. Fuse rating for this configuration is 2 Amps.
The 1492-CABLE003Y current is limited to 2A per pin.
The B814-108 allowed using a circuit board jumper to configure each relay output for N.O. or N.C. operation (N.O. default),
but only one set of field terminals was provided on the module. The 1492-CM800-LD015 conversion module is set for N.O.
relay operation. If the N.C. contact of the 1756-OX8I relay module is required, it may be accessed by modifying the wiring at
the module’s swing-arm (terminal block).
Refer to your B814-108 and 1756-OXI Installation Manual wiring schematics and diagrams. Ensure 1756 output module
ratings are not exceeded. [Reference Doc: 41170-782 (Version 03)]
1
2
3
4
1
5
2
6
3
7
4
8
6
9
7
10
8
11
9
12
11
13
12
13
15
14
16
16
17
17
18
19
19
18
20
14
15
21
20
22
23
24
25
26
27
28
29
30
31
32
33
35
36
5
37
10
38
39
40
34
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
Output 8
Not Used
Not Used
Output 1A
Output 2A
Output 3A
Output 4A
Output 5A
Output 6A
Output 7A
Output 8B
Output 1B
Output 2B
Output 3B
Output 4B
Output 5B
Output 6B
Output 7B
Output 8A
LOAD
L1
L2
Not Used
Not Used
OUT-0 N.C.
2
1
OUT-0 N.O.
4
3
OUT-1 N.C.
6
5
OUT-1 N.O.
8
7
OUT-2 N.C.
10
9
OUT-2 N.O.
12
11
OUT-3 N.C.
14
13
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
OUT-3 N.O.
16
15
OUT-4 N.C.
18
17
OUT-4 N.O.
20
19
OUT-5 N.C.
22
21
OUT-5 N.O.
24
23
OUT-6 N.C.
26
25
OUT-6 N.O.
28
27
OUT-7 N.C.
30
29
Orange/Green
Black/White/Red
White/Black/Red
Red/Black/White
Green/Black/White
Orange/Black/White
Blue/Black/White
Black/Red/Green
White/Red/Green
Red/Black/Green
Green/Black/Orange
Orange/Black/Green
Blue/White/Orange
Black/White/Orange
White/Red/Orange
Orange/White/Blue
OUT-7 N.O.
32
31
L1-0
L1-0
L1-1
L1-1
L1-2
L1-2
L1-3
L1-3
L1-4
L1-4
L1-5
L1-5
L1-6
L1-6
L1-7
L1-7
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. In addition, refer to the current draw requirements of the existing
loads for this configuration to ensure they are within the current ratings of the 1756 output module.
WARNING
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10000021918 (Version 01)
IV. Conversion Module Wiring Diagram (Continued)
Conversion Module Installation and Application Considerations
The maximum B840-108 relay module resistive current limits versus 1756-OX8I limits are as follows: (NOTE: for switching
and inductive current and voltage ratings, refer to the modules Installation Manual)
B840-108 1756-OX8I w/ 1492-CABLE003Y
a) Current/Point
3A Cont, 2A Switching 100VA 2A @ 30V DC/125V AC
The B840-108 is fused per output point. The 1756-OX8I is NOT fused. The 1492-CM800-LD015 provides a 5x20mm fuse
per 1756-OX8I point. Fuse rating for this configuration is 2 Amps.
The 1492-CABLE003Y current is limited to 2A per pin.
The B840-108 allowed using a circuit board jumper to configure each relay output for N.O. or N.C. operation (N.O. default),
but only one set of field terminals was provided on the module. The 1492-CM800-LD015 conversion module is set for N.O.
relay operation. If the N.C. contact of the 1756-OX8I relay module is required, it may be accessed by modifying the wiring at
the module’s swing-arm (terminal block).
Refer to your B840-108 and 1756-OXI Installation Manual wiring schematics and diagrams. Ensure 1756 output module
ratings are not exceeded. [Reference Doc: 41170-783 (Version 03)]
1756-OX8I
1492-CABLE003Y
1492-CM800-LD015
Conversion: B840-108 to 1756-OX8I with 1492-CM800-LD015
B840-108 Swing Arm
1
2
3
4
1
5
2
6
3
7
4
8
6
9
7
10
8
11
9
12
11
13
12
13
15
14
16
16
17
17
18
19
19
18
20
14
15
21
20
22
23
24
25
26
27
28
29
30
31
32
33
35
36
5
37
10
38
39
40
34
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
Output 8
Not Used
Not Used
Output 1A
Output 2A
Output 3A
Output 4A
Output 5A
Output 6A
Output 7A
Output 8B
Output 1B
Output 2B
Output 3B
Output 4B
Output 5B
Output 6B
Output 7B
Output 8A
LOAD
L1
L2
Not Used
Not Used
OUT-0 N.C.
2
1
OUT-0 N.O.
4
3
OUT-1 N.C.
6
5
OUT-1 N.O.
8
7
OUT-2 N.C.
10
9
OUT-2 N.O.
12
11
OUT-3 N.C.
14
13
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
OUT-3 N.O.
16
15
OUT-4 N.C.
18
17
OUT-4 N.O.
20
19
OUT-5 N.C.
22
21
OUT-5 N.O.
24
23
OUT-6 N.C.
26
25
OUT-6 N.O.
28
27
OUT-7 N.C.
30
29
Orange/Green
Black/White/Red
White/Black/Red
Red/Black/White
Green/Black/White
Orange/Black/White
Blue/Black/White
Black/Red/Green
White/Red/Green
Red/Black/Green
Green/Black/Orange
Orange/Black/Green
Blue/White/Orange
Black/White/Orange
White/Red/Orange
Orange/White/Blue
OUT-7 N.O.
32
31
L1-0
L1-0
L1-1
L1-1
L1-2
L1-2
L1-3
L1-3
L1-4
L1-4
L1-5
L1-5
L1-6
L1-6
L1-7
L1-7
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. In addition, refer to the current draw requirements of the existing
loads for this configuration to ensure they are within the current ratings of the 1756 output module.
WARNING
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