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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
  • Software
  • Documentation
  • Resources

Features

  • Built-in RS-232/422/423 communication port
  • 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

Products

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

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.

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Our Migration Solutions programs and services will help you leverage the investments you've made in knowledge and equipment when you decide it's time to migrate.


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.

Build This Catalog Number

Build or verify a catalog number, and get information and CAD drawings for these products.

Configuration & Selection Tools

Other Resources

  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.