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Bulletin 1785 PLC-5 Programmable Logic Controllers

PLC-5 Controllers

Bulletin 1785 PLC-5® controllers are available in a range of I/O capacity and memory sizes. Our controllers have on-board Universal Remote I/O scanner ports and optional communication modules. You can connect our controllers in a variety of networks for distributed processing and I/O control. Selected models of PLC-5 controllers have on-board ports for Ethernet™, ControlNet™, or Extended Local I/O communication.

  • Overview
  • Product Selection
  • Specifications
  • Software
  • Documentation
  • Resources

Features

  • Ladder-logic and structured-text programming
  • Advanced instruction set including file handling, sequencer, diagnostic, shift register, immediate I/O, and program control instructions
  • Built-in RS-232/422/423 communication port
  • DeviceNet and ControlNet I/O on selected processors
  • One or more on-board ports that can be configured for either Data Highway Plus™ (DH+) or Universal Remote I/O
  • Universal Remote I/O ports can be configured as an I/O scanner port or an I/O adapter port
  • Ethernet PLC-5® controllers and the Ethernet interface module (1785-ENET) provide built-in web services
  • Backup options for increased fault tolerance through the ControlNet™ Hot Backup module or the PLC-5 Backup Communication module

1785 Ethernet PLC-5 Controllers

  • Memory: 16…100 K words
  • Maximum I/O: 512…3072
  • I/O chassis supported: 13…65
  • I/O communication: processor-resident local I/O, Universal Remote I/O and DeviceNet™ I/O (with I/O scanner module)
  • General communication options: Ethernet, DH+, RS-232-C/422-A/423-A

1785 ControlNet PLC-5 Controllers

  • Memory: 6…100 K words; protected on some models
  • Maximum I/O: 512…3072 (forcible); 3200…50176 (non-forcible)
  • I/O chassis supported: 77…125
  • I/O communication: ControlNet I/O, processor-resident local I/O, Universal Remote I/O and DeviceNet I/O (with I/O scanner module)
  • On-board communication options: ControlNet, DH+, RS-232-C/422-A/423-A
  • Ethernet communication available with communication interface module

1785 Standard PLC-5 Controllers

  • Memory: 8…100 K words; protected on some models
  • Maximum I/O: 512…3072
  • I/O chassis supported: 5…93
  • I/O communication: processor-resident local I/O, extended local I/O, Universal Remote I/O and DeviceNet I/O (with I/O scanner module)
  • On-board communication options: DH+, RS-232-C/422-A/423-A
  • Ethernet communication available with communication interface module

Additional Information

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Specifications

TitleNumberDownload
1785 PLC-5 Programmable Controllers Selection Guide1785-SG001

Certifications


  • UL
  • CSA Class I Div 2 Hazardous
  • CE
  • C-Tick
  • EEx
  • EtherNet/IP
  • ODVA
  • Marine and Offshore Certification
  • European Union Directives

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Looking for Additional Information?

To find additional product information (CAD drawing files, 3D models, etc.) enter the complete catalog number (including dashes) below.

Software

Use RSLogix 5 programming software to program your PLC-5® system. Programs developed with A.I. Series PLC-5 software and 6200 software can be reused in RSLogix 5 software.

The controllers and modules you select, along with your network configuration, determine what additional software packages you need to configure and program your system. Additional required software may include:

Learn More

Additional software products are available from Rockwell Software.

Documentation

TitleNumberDownload
1785 PLC-5 Programmable Controllers Selection Guide1785-SG001
Enhanced and Ethernet PLC-5 Programmable Controllers User Manual1785-UM012
ControlNet PLC-5 Programmable Controllers User Manual1785-UM022
ControlNet PLC-5 Hot Backup System User Manual1785-UM024
Classic 1785 PLC-5 Programmable Controllers Users Manual1785-UM001
PLC-5 Backup Communication Module User Manual1785-UM524
More PLC-5 System publications in Literature LibraryAll Languages

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Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Configuration & Selection Tools

Other Resources

  • Replacement Batteries  — Programmable controllers replacement batteries.
  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.