A-B 1746-HSCE2 Module Rockwell SLC Analog Combination

Select the I/O Rack Slot Two factors determine where you should locate the module in the I/O rack: 

ambient temperature and electrical noise. Consider the following conditions when selecting an I/O rack slot for the module. 

Position the module:

• in a slot away from ac or high voltage dc modules.

• away from the rack power supply if installed in a modular system.

• in the I/O rack lowest in the enclosure for a cooler ambient.

Determine the Module’s  Power Requirements 

Analog modules require power from the 5V dc and 24V dc backplane  power supplies of the SLC 500 system. 

This table shows the backplane  power requirements for fast analog I/O modules.

SLC 500 Fast Analog  I/O Module

Install and Wire the Modules

This chapter describes procedures to install fast analog I/O modules in an SLC 500 system. The procedures include the following tasks.

• determine the module’s power requirements

• determine compatibility with other I/O modules

• configure input channels

• select the I/O rack slot

• install the module

• consider when wiring

– using system wiring guidelines

– grounding the cable

– determining cable length

• minimize electrical noise interference

• wire the module

• minimize ground loops

• label the terminal block

Minimize Electrical Noise Interference

Because high-speed analog signals are particularly vulnerable to electrical noise, take precautions when routing your signal cables. 

To help reduce the effects of electrical noise on analog signals, we recommend that you do the following:

• Install the SLC 500 system in a NEMA rated enclosure.

• Make sure that the SLC 500 system is properly grounded.

• Use Belden cable #8761 (or equivalent) for signal wiring.

• Ground the cable properly.

• Route signal cables away from other wiring or in grounded conduit.

• Group these modules away from ac or high-voltage dc modules.

We recommend re-checking system operation after installing new machinery or other sources of electrical noise near the system.

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1756-OB16IS module Rockwell ControlLogix 16 digital output

1756-OB32 module Rockwell ControlLogix 32 digital output

1756-OB8 module Rockwell ControlLogix 8 digital output

1756-OB8EI module Rockwell ControlLogix 8 digital output

1756-OB8I module Rockwell ControlLogix 8 digital output

1756-OC8 module Rockwell ControlLogix 8 digital output

1756-OF4 module Rockwell ControlLogix 4 analog

1756-OF6CI module Rockwell ControlLogix 6 analog

1756-OF6VI module Rockwell ControlLogix 6 analog

1756-OF8 module Rockwell ControlLogix 8 analog

1756-OF8H module Rockwell ControlLogix 8 analog

1756-OG16 module Rockwell ControlLogix 16 digital output

1756-OH8I module Rockwell ControlLogix 8 digital output

1756-ON8 module Rockwell ControlLogix 8 digital output

1756-OV16E module Rockwell ControlLogix 16 digital output

1756-OV32E module Rockwell ControlLogix 32 digital output

1756-OW16I module Rockwell ControlLogix 16 digital output

1756-OX8I module Rockwell ControlLogix 8 digital output

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1756-PA75 Module Rockwell ControlLogix AC Power Supply

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1756-PAXT Module Rockwell ControlLogix XT Power Supply

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1756-PB75 Module Rockwell ControlLogix DC Power Supply

1756-PB75R Module Rockwell ControlLogix DC Power Supply

1756-PBR2 Module Rockwell ControlLogix Power Supply

1756-PBXT Module Rockwell ControlLogix XT Power Supply

1756-PC75 Module Rockwell ControlLogix DC Power Supply

1756-PH75 Module Rockwell ControlLogix DC Power Supply

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