Allen-Bradley 1492 1771-N Series I/O to 1756 ControlLogix I/O Installation Instructions
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1771-N Series I/O to 1756 ControlLogix I/O
(Cat 1492-CONACAB020N* and 1492-CONACAB050N*)
I. Description of the Existing 1771-N Series I/O Wiring System
The remote termination panels are designed for mounting on standard
DIN 1 or DIN 3 mounting rails.
1771-NIS 4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
±10V ±10V ±10V ±10V ±10V ±10V ±10V ±10V
±10V out ±10V out ±10V out ±10V out ±10V out ±10V out ±10V out ±10V out
0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out
±5V (±20mA) ±5V (±20mA) ±5V (±20mA) ±5V (±20mA) RTD RTD RTD RTD
RTD RTD RTD RTD RTD RTD RTD RTD
±5V (±20mA) ±5V (±20mA) ±5V (±20mA) ±5V (±20mA) ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC
±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC
-5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC
Module Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8
1771-NIV
1771-NIV1
1771-NIVR
1771-NIVT
1771-NR
1771-NT1
1771-NT2
1771-NOC
1771-NOV
1771-RTP1
1771-RTP3
has cold junction compensation for thermocouples
incorporates resistors and fuses; used primarily for 4 - 20mA
inputs when using ±5V inputs (Uses 5mm x 20mm fast acting
1/4A fuses such as Bussmann GMA-1/4, 250V / 250mA)
1771-RTP4 a general use block with straight-thru wiring that can be used
for all applications except thermocouples
1771-RT41 a 4-channel block with cold junction compensation for
thermocouples
1771-RT44 a general use 4-channel block with straight-thru wiring that
can be used for all applications except thermocouples
RTP4 and RT44 can be used with thermocouples if a method of odd
junction compensation is provided at the interface of thermocouple and
copper wires within the system
Catalog
Number Description
PN-107134
DIR 10000165561 (Version 02)
Publication 1492-IN104C-EN-E
Printed in U.S.A.
The 1771-N Series High Resolution Isolated Analog I/O modules were designed to be used with 1771 Remote Termination
Panels (RTPs) and connected by a 6ft or 15ft cable, as follows.
Catalog Number: 1771-NC6 (6 ft) or 1771-NC15 (15 ft) cables.
Variations of remote termination panels are used, depending on the type of module used. These are:
(1)
(Cat 1492-CONACAB020N* and 1492-CONACAB050N*)
I. Description of the Existing 1771-N Series I/O Wiring System
The remote termination panels are designed for mounting on standard
DIN 1 or DIN 3 mounting rails.
1771-NIS 4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
4 - 20mA
±5V (±20mA)
±10V ±10V ±10V ±10V ±10V ±10V ±10V ±10V
±10V out ±10V out ±10V out ±10V out ±10V out ±10V out ±10V out ±10V out
0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out 0 - 25mA out
±5V (±20mA) ±5V (±20mA) ±5V (±20mA) ±5V (±20mA) RTD RTD RTD RTD
RTD RTD RTD RTD RTD RTD RTD RTD
±5V (±20mA) ±5V (±20mA) ±5V (±20mA) ±5V (±20mA) ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC
±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC ±100mV / TC
-5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC -5 / +55mV / TC
Module Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8
1771-NIV
1771-NIV1
1771-NIVR
1771-NIVT
1771-NR
1771-NT1
1771-NT2
1771-NOC
1771-NOV
1771-RTP1
1771-RTP3
has cold junction compensation for thermocouples
incorporates resistors and fuses; used primarily for 4 - 20mA
inputs when using ±5V inputs (Uses 5mm x 20mm fast acting
1/4A fuses such as Bussmann GMA-1/4, 250V / 250mA)
1771-RTP4 a general use block with straight-thru wiring that can be used
for all applications except thermocouples
1771-RT41 a 4-channel block with cold junction compensation for
thermocouples
1771-RT44 a general use 4-channel block with straight-thru wiring that
can be used for all applications except thermocouples
RTP4 and RT44 can be used with thermocouples if a method of odd
junction compensation is provided at the interface of thermocouple and
copper wires within the system
Catalog
Number Description
PN-107134
DIR 10000165561 (Version 02)
Publication 1492-IN104C-EN-E
Printed in U.S.A.
The 1771-N Series High Resolution Isolated Analog I/O modules were designed to be used with 1771 Remote Termination
Panels (RTPs) and connected by a 6ft or 15ft cable, as follows.
Catalog Number: 1771-NC6 (6 ft) or 1771-NC15 (15 ft) cables.
Variations of remote termination panels are used, depending on the type of module used. These are:
(1)
(2)
II. Description of the Conversion Solution
Cable Catalog Numbers:
1492-CONACAB020N1
1492-CONACAB020N2
1492-CONACAB020N3
1492-CONACAB020N4
1492-CONACAB020N5
1492-CONACAB020N7
Cable Catalog Numbers:
1492-CONACAB020N5
1492-CONACAB020N6
Cable Catalog Number:
1492-CONACAB020N8
1492-CONACAB020N88
1492-CONACAB020N38
1492-CONACAB020N78
1492-CONACAB020N48
1492-CONACAB020N18
PN-107134
DIR 10000165561 (Version 02)
Publication 1492-IN104C-EN-E
This conversion from the 1771-N Series I/O to a 1756 ControlLogix I/O is accomplished simply by replacing the (2) existIng
cables A & B with (1 or 2) of the following new 1492 cables. Each of these cables has a connector on one end that attaches
directly to the existing 1771 RTP. On the other end of the new cable is (1) 1756 Removable Terminal Block (RTB) for connection
to the new 1756 ControlLogix I/O Module. The I/O signals are routed from the existing 1771 RTP through the 1492 cables to the
appropriate terminals on the 1756 I/O module, per the Wiring Diagrams in this Installation Manual. This allows the conversion
to be completed without the removal of any field wires from the existing 1771-RTP.
Cable Catalog Numbers:
1492-CONACAB020N68
1492-CONACAB020N34
1492-CONACAB020N44
1492-CONACAB020N54
1492-CONACAB020N74
II. Description of the Conversion Solution
Cable Catalog Numbers:
1492-CONACAB020N1
1492-CONACAB020N2
1492-CONACAB020N3
1492-CONACAB020N4
1492-CONACAB020N5
1492-CONACAB020N7
Cable Catalog Numbers:
1492-CONACAB020N5
1492-CONACAB020N6
Cable Catalog Number:
1492-CONACAB020N8
1492-CONACAB020N88
1492-CONACAB020N38
1492-CONACAB020N78
1492-CONACAB020N48
1492-CONACAB020N18
PN-107134
DIR 10000165561 (Version 02)
Publication 1492-IN104C-EN-E
This conversion from the 1771-N Series I/O to a 1756 ControlLogix I/O is accomplished simply by replacing the (2) existIng
cables A & B with (1 or 2) of the following new 1492 cables. Each of these cables has a connector on one end that attaches
directly to the existing 1771 RTP. On the other end of the new cable is (1) 1756 Removable Terminal Block (RTB) for connection
to the new 1756 ControlLogix I/O Module. The I/O signals are routed from the existing 1771 RTP through the 1492 cables to the
appropriate terminals on the 1756 I/O module, per the Wiring Diagrams in this Installation Manual. This allows the conversion
to be completed without the removal of any field wires from the existing 1771-RTP.
Cable Catalog Numbers:
1492-CONACAB020N68
1492-CONACAB020N34
1492-CONACAB020N44
1492-CONACAB020N54
1492-CONACAB020N74
(3)
III. Compatibility for I/O Modules
PN-107134
DIR 10000165561 (Version 02)
Publication 1492-IN104C-EN-E
Foot Notes:
To understand any issues concerning I/O module compatibility refer to the Installation Manuals for the specific I/O modules involved.
This conversion solution requires replacement of the exisiting (1) 1771-RTP1 interface module with (2) 1771-RT41 interface modules.
Each 1771-RTP1 module has a cold junction compensation thermocouple attached to the interface module.
These catalog numbers are for a 2.0M cable length. A 5.0M cable is also available. Change the 3 numerals in the middle of the catalog
number from "020" to "050" (Example: 1492-CONACAB020N1 becomes 1492-CONACAB050N1).
4 These cables have a maximum operating voltage of 30VDC , 2A maximum per pin, 12A maximum per cable.
Wiring diagram for these are identical.
4
III. Compatibility for I/O Modules
PN-107134
DIR 10000165561 (Version 02)
Publication 1492-IN104C-EN-E
Foot Notes:
To understand any issues concerning I/O module compatibility refer to the Installation Manuals for the specific I/O modules involved.
This conversion solution requires replacement of the exisiting (1) 1771-RTP1 interface module with (2) 1771-RT41 interface modules.
Each 1771-RTP1 module has a cold junction compensation thermocouple attached to the interface module.
These catalog numbers are for a 2.0M cable length. A 5.0M cable is also available. Change the 3 numerals in the middle of the catalog
number from "020" to "050" (Example: 1492-CONACAB020N1 becomes 1492-CONACAB050N1).
4 These cables have a maximum operating voltage of 30VDC , 2A maximum per pin, 12A maximum per cable.
Wiring diagram for these are identical.
4