Field Wire Conversion Module for Modicon B825-016 to 1756-IB16
(Cat 1492-CM800-LD008)
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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).
20-Pin Connector for 1492-CABLEX
Mating Connector for
B800 Terminal Block
1492-CM800-LD008 Conversion Module
WARNING
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.
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
Conversion Module
1492-CM800-LD008
Compatible 800
Input Module
B825-016
Compatible 1756
Input Module
1756-IB16
Required 1492 Cable
1492-CABLEX
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).
10000021883 (Version 00)
Printed in Germany
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.
WARNING
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.
Conversion: B825-016 to 1756-IB16 with 1492-CM800-LD008
1492-CM800-LD008
+
-
Common
Common
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Common
+24 VDC
9
10
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
19
20
1756-IB16
1492-CABLE003X
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
GND-0
GND-0
IN-0
IN-1
IN-2
IN-3
IN-4
IN-5
IN-6
IN-7
IN-8
IN-9
IN-10
IN-11
IN-12
IN-13
IN-14
IN-15
GND-1
GND-1
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)]
10000021883 (Version 00)
(2)
V. 1492-CM800-LD008 Conversion Module Specifications
(Operating specifications are when installed in the Conversion System base / cover-plate assembly)
Specification
Dimensions
Approximate Shipping Weight
Storage Temperature
Operating Temperature
Operating Humidity
Shock
Non-operating
Operating
Operating Vibration
Maximum Operating Voltage
Max. Module Operating Current
Per Point:
Per Module:
Value
288.9 mm (height) x 139.7 mm (depth) x 44.5 mm (width)
11.37 in. (height) x 5.5 in. (depth) x 1.75 in. (width)
300g (0.66 lbs) (includes carton)
-40 to +85°C (-40 to +185°F)
0 to 55°C (32 to 131°F)
5 to 95% at 55°C (non-condensing)
50g
30g
2g @ 10-500Hz
150 Vdc
2 Amps (1492-CABLE connection pins are limited to 2A per pin)
12 Amps
NOTICE
Refer to the Wiring Diagram(s) for
current limits for a specific configuration.
Agency Certifications
Pollution Degree
Environmental Rating
10000021883 (Version 00)
UL Classified: Under UL File Number E113724
CSA
CE: compliant for all applicable directives
2
IP20
(3)
VI. Appendix A - 800 Housing to 1756 Chassis Conversion System Selection Process
1) Determine the number of 800 I/O modules actually used in the 800 I/O Housing to be converted to 1756 I/O.
2) Review the data in Column 5 from the below table, and select a 1756 I/O Chassis which meets your conversion
needs from Step 1. Ensure the information from the I/O Conversion module table is reviewed first since in some
cases, two 1756 modules are needed to replace one 800 I/O module.
3) Once the 1756 Chassis is selected, refer to Column 7 and select the Conversion Assembly.
1
2
3
4
5
6
7
1756
Chassis
Max.
Number
800
Housing
Max.
Number
1756 I/O Chassis
Modicon 800 I/O
Conversion Assembly
Width
Catalog Number of 1756 Chassis Width
Housing Cat Number of 800 Housing
Catalog Number
Slots for I/O
Dimension
Slots for I/O Dimension
1756-A4
3
10.25”
10.25”
AS-H810-xxx
3
1492-MUA4-MB3
A7 = 14.49”
A7 = 6, A10=9
4
17.5”
AS-H819-103
A10 = 19.02”
1756-A7
A7 = 14.49”
1492-MUA7-A10
or
A7 = 6, A10=9
6
17.5”
AS-H819-209
MB4679
1756-A10
A10 = 19.02”
A7 = 14.49”
A7 = 6, A10=9
7
17.5”
AS-H819-100
A10 = 19.02”
A10 = 19.02”
A10 = 9, A13=12
AS-H827-103
8
27.1”
A13 = 23.15”
A10 = 19.02”
1756-A10
1492-MUA10-A13or
A10 = 9, A13=12
27.1”
AS-H827-209
10
MB81011
A13 = 23.15”
1756-A13
A10 = 19.02”
A10 = 9, A13=12
27.1”
11
AS-B827-100
A13 = 23.15”
One chassis slot required for the ControlLogix processor or a remote I/O adapter type module.
The footprint and mounting dimensions of the 1492 Conversion Assembly (base plate and cover plate) match those of the
Modicon I/O Housing.
Width dimension includes the 1756 Chassis power supply.
Surplus Chassis width as compared to the 800 I/O Housing is divided equally when mounting it on the Conversion Assembly.
Mounting holes for the 1756 I/O Chassis are pre-drilled and pre-tapped into the Conversion Assembly cover plate.
Modicon is a Registered Trademark of Group Schneider
Article No. 4351910000
10000021883 (Version 00)
Printed in Germany
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