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      1756-RIO/B

      ControlLogix Remote I/O Communication Module

      Product Information

      Product Describe

      ControlLogix Remote I/O (RIO) communication

      module. This module provides RIO connection

      and capable of functioning as a scanner or

      adapter in the RIO network

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC System
      • Spare Part Number:
        1756-RIO
      • Estimated shipping dimensions:
        3.6x14x14.6cm
      • Weight:
        0.26 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Operating Temperature:
        32-140 Fahrenheit (0-60 Celsius)
      • Wire Size:
        20 AWG
      • Power Dissipation (Max):
        2.5 Watts
      • Isolation Voltage:
        50 Volts Continuous
      • Backplane Current (24 Volts DC):
        5 milliamps
      • Backplane Current (5.1 Volts DC):
        450 milliamps
      • Product Line:
        ControlLogix
      • Stock:
        30
      By purchasing this item, you agree to the Terms & Conditions
      Moore Automated is NOT an authorized distributor of Allen-Bradley
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      All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
      Learn More Policy
      Manuals
      1756-RIO/B.pdf
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          FAQ

          • How does the 1756‑RIO/B facilitate legacy and distributed I/O integration across industrial networks?
            The 1756‑RIO/B supports RIO communication protocols with legacy I/O devices such as 1791‑series and remote adapter racks, enabling ControlLogix controllers to acquire and manage digital, analog, and specialty I/O over traditional RIO networks. Its architecture supports a single RIO port that can link up to 32 physical remote racks with block transfers and scheduled I/O.
          • In what modes can the 1756‑RIO/B operate, and why is this adaptability valuable?
            The 1756‑RIO/B can operate as both a Remote I/O scanner and a Remote I/O adapter. As a scanner, it manages communications and scheduled data refreshes for connected racks; as an adapter, it allows a remote node to be addressed on a shared RIO network. This versatility enables flexible network topologies and gradual system modernization.
          • What communication specifications define the 1756‑RIO/B module’s link performance?
            The 1756‑RIO/B supports universal RIO baud rates, typically including 57.6 Kbps, 115.2 Kbps, and 230.4 Kbps, aligning with classic RIO network speed standards. It supports up to 10 concurrent scheduled I/O connections with deterministic update cycles for remote modules.
          • How is electrical isolation implemented on the 1756‑RIO/B to ensure signal integrity and safety?
            The 1756‑RIO/B provides 50 V continuous basic insulation between the RIO communication lines and the backplane. This isolation level supports noise immunity and basic safety compliance in industrial settings, with type testing typically performed at 500 V AC for 60 seconds.
          • What cabling and network media are used to connect the 1756‑RIO/B to a Remote I/O network?
            The 1756‑RIO/B uses universal RIO cabling standards, such as Belden 9463 twinaxial or 1771‑CD style “Blue Hose” cables, for its RIO link. Scheduling and addressing are configured via the controller’s I/O configuration environment to ensure accurate remote I/O mapping.

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