SLC 500 System

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I/O Modules and Hardware

1746 I/O Module Overview

The 1746 I/O product line provides more than 60 modules to meet your application needs in a modular assembly—including intelligent I/O modules.

• Digital I/O modules provide 4 through 32 I/O per module.
  
  • Digital I/O circuits interface to on/off sensors/actuators.
    
  • Ladder logic has direct access to I/O values.
    
  • Input modules, output modules, and combination input/output modules.
    
  • Ac and DC input modules.
    
  • Ac, dc, and relay-contact output modules.
    
• Analog I/O modules provide 4 through 16 I/O per module.
  
  • D/A and A/D conversions interface analog signals to data-table values
    
  • Ladder logic has direct access to I/O values.
    
  • Input modules, output modules, and combination input/output modules.
    
  • A high level of resolution for accurate control in a broad range of analog applications.
    
• Intelligent I/O modules are available to enhance your control system. These modules include a high-speed counter module, a BASIC language module, a motion control module, and communication modules. Each provides a unique easy-to-use interface between the I/O circuits (digital and/or analog) and the CPU.
  

This modular hardware design uses cost- and space-effective means to add I/O to your control system. These modules can be used:

• In a local I/O chassis of an SLC modular-hardware controller.
  
• At a location remote from the processor, in an I/O chassis with a 1747-ACN15 or -ACNR15 I/O adapter on a ControlNet link with the processor.
  
• At a location remote from the processor, in an I/O chassis with a 1747-ASB I/O adapter on a Universal Remote I/O link with the processor.
  

Benefits

• Hardware-platform sharing makes spare-parts stocking convenient.
  
• Combinations of input and outputs in the same digital and analog modules provide expansion capabilities without sacrificing space or increasing cost.
  
• Variety of voltages creates a precise power fit for your application.
  
• No need to disconnect wiring to replace module of 16 or more I/O; removable terminal blocks are shipped with I/O modules.
  
• Broad range of signal interfaces to AC and DC sensors/actuators for a wide variety of applications.
  
• LED indicators show input/output status for easier troubleshooting.
  
• Modules available in different densities (32 I/O per module max) for greater flexibility and cost savings.
  
• 1746 I/O modules include optical coupling and filter circuitry for signal noise reduction.
  
• A wide range of analog signal levels including standard analog inputs and outputs, and direct thermocouple and RTD temperature inputs.
  

Specifications

Shock, operating (relay contact output)	10 g (3 pulses, 11 ms)
Shock, operating (all modules except relay contact output)	30 g (3 pulses, 11 ms)
Shock, nonoperating	50 g (3 pulses, 11 ms)
Vibration	1.0 g @ 5…2000 Hz
Vibration, Non-Operating	2.5 g @ 5…2000 Hz
Environmental conditions
Temperature, operating	0…60 °C (32…140 °F)
Temperature, nonoperating	-40…85 °C (-40…185 °F)
Relative Humidity	5…95% (without condensation)