1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
    1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
    1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
    1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
    1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)
1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)

1784-PCM5 | Allen-Bradley DH+ Communication Cable for PCMK Cards (230 kbps)

Part #: 1784-PCM5 Manufactured by: Allen-Bradley
Regular price
$1,125.00
Sale price
$1,125.00
Regular price
6 in Stock
Condition: New – Open box
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Product Overview
Allen-Bradley 1784-PCM5 Communication Cable for 1784-PCMK-to-PLC-2/3/5, connects the 1784-PCMK/B card to a PLC-2, PLC-3, o...  Read more
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Warranty for Product #: 1784-PCM5
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Product Description P/N: 1784-PCM5

Description / Specifications

Description

The Allen-Bradley 1784-PCM5 is a DH+ communication cable designed for interfacing 1784-PCMK communication cards with PLC-2, PLC-3, and PLC-5 controllers. Supporting a 230 kbps Data Highway Plus network, the 1784-PCM5 ensures reliable data exchange between industrial control systems and PC-based programming devices. Its wedge-supported connector design provides secure strain relief and protects both the cable and communication card during field use.

 

 

Technical Specifications

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Communication Cable
Part Number 1784-PCM5
Subcategory Communication Cable
Series PLC 5
Cable Type DH+ communication cable
Communication Speed 230 kbps
Connector Type RJ45
Compatible Cards 1784-PCMK / PCMK/B PCMCIA cards
Supports Remote I/O Yes
Diagnostics Loopback test supported (card only)
Included Accessories Connection wedges for strain relief
Typical Applications PLC-2, PLC-3, PLC-5 communication, PC-based programming
Environment Industrial control systems
Wedges Requirement Must be installed to protect PCMK card and connector
Network Type Data Highway Plus (DH+)
Use Case Programming, monitoring, and diagnostics

 

 

Information About 1784-PCM5

The 1784-PCM5 belongs to the Allen-Bradley PLC-5 accessory family and enables notebook or PC-based DH+ communication through the 1784-PCMK/B PCMCIA card. It links directly to enhanced and standard PLC processors, allowing configuration, monitoring, and troubleshooting over a DH+ network. The cable includes two mechanical wedges to maintain connector stability and prevent accidental disconnection—an essential feature for industrial environments where vibration or movement is present. Compatible with loopback diagnostics when attached to the PCMK card (not to a live DH+ link), the 1784-PCM5 also supports remote I/O scanner capabilities for expanded communication functionality.

Key Features

  • DH+ Communication Cable: Provides connectivity to Data Highway Plus networks at 230 kbps.
  • PCMK Card Compatible: Designed for 1784-PCMK and 1784-PCMK/B PCMCIA communication cards.
  • Secure Connector Wedges: Includes strain-relief wedges to prevent accidental cable disconnection.
  • Supports Legacy PLCs: Interfaces with PLC-2, PLC-3, and PLC-5 controllers and enhanced processor versions.
  • Loopback Diagnostics Support: Enables diagnostic testing when connected directly to the PCMK card.
  • RJ45 Connector Type: Provides a reliable and standardized connection point for DH+ communication.
  • Industrial-Grade Durability: Built for field use in programming, monitoring, and diagnostics.
  • Remote I/O Capability: Supports scanner functionality through compatible PCMK cards.

The 1784-PCM5 delivers the reliability and precision required for robust DH+ communication and PC-based programming in PLC-5 automation systems.

Frequently Asked Questions about 1784-PCM5
Question: What is the 1784-PCM5?
Date Update:06/06/2025
Answer:

The 1784-PCM5 is a communication cable used with Allen-Bradley 1784-PCMK communication cards (PCMCIA-based) to connect them to a PLC-5, SLC 500, or other compatible device.

Length: 5 meters (16.4 feet)

Connector:

  • One end: 9-pin D-sub (connects to the serial port of the PLC)
  • Other end: mini-DIN or specialized connector to connect to the PCMK card.
Question: How do I connect the 1784-PCM5 cable?
Date Update:06/06/2025
Answer:

Connection steps:

  1. Connect the mini-DIN end (or custom end) to the 1784-PCMK card.
  2. Connect the 9-pin D-sub end to the PLC’s serial communication port (or to a DH+ communication port using an appropriate interface).
  3. In RSLinx Classic, configure the driver for PCMK-DH+ or PCMK-DH485 communication.
Question: What are common troubleshooting tips?
Date Update:06/06/2025
Answer:

No communication:

  • Verify driver configuration in RSLinx Classic.
  • Ensure both ends of the cable are securely connected.
  • Check for wear, damage, or bent pins on the connectors.

Intermittent connection:

  • Inspect the cable for damage.
  • Confirm the PCMCIA card is fully seated in the laptop slot.
Question: What devices is the 1784-PCM5 compatible with?
Date Update:06/06/2025
Answer:

Typical compatibility includes:

  • PLC-5
  • SLC 500
  • Other devices that support DH+ (Data Highway Plus) or DH-485 networks via the 1784-PCMK card.
Question: What is the typical use of the 1784-PCM5?
Date Update:06/06/2025
Answer:

It allows a PC or laptop (equipped with a 1784-PCMK card) to:

  • Download/upload PLC programs
  • Monitor and troubleshoot control systems
  • Perform firmware upgrades on compatible PLCs

It’s part of a legacy communication setup, used mainly when no direct Ethernet or USB communication options are available.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description

The Allen-Bradley 1784-PCM5 is a DH+ communication cable designed for interfacing 1784-PCMK communication cards with PLC-2, PLC-3, and PLC-5 controllers. Supporting a 230 kbps Data Highway Plus network, the 1784-PCM5 ensures reliable data exchange between industrial control systems and PC-based programming devices. Its wedge-supported connector design provides secure strain relief and protects both the cable and communication card during field use.

 

 

Technical Specifications

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Communication Cable
Part Number 1784-PCM5
Subcategory Communication Cable
Series PLC 5
Cable Type DH+ communication cable
Communication Speed 230 kbps
Connector Type RJ45
Compatible Cards 1784-PCMK / PCMK/B PCMCIA cards
Supports Remote I/O Yes
Diagnostics Loopback test supported (card only)
Included Accessories Connection wedges for strain relief
Typical Applications PLC-2, PLC-3, PLC-5 communication, PC-based programming
Environment Industrial control systems
Wedges Requirement Must be installed to protect PCMK card and connector
Network Type Data Highway Plus (DH+)
Use Case Programming, monitoring, and diagnostics

 

 

Information About 1784-PCM5

The 1784-PCM5 belongs to the Allen-Bradley PLC-5 accessory family and enables notebook or PC-based DH+ communication through the 1784-PCMK/B PCMCIA card. It links directly to enhanced and standard PLC processors, allowing configuration, monitoring, and troubleshooting over a DH+ network. The cable includes two mechanical wedges to maintain connector stability and prevent accidental disconnection—an essential feature for industrial environments where vibration or movement is present. Compatible with loopback diagnostics when attached to the PCMK card (not to a live DH+ link), the 1784-PCM5 also supports remote I/O scanner capabilities for expanded communication functionality.

Key Features

  • DH+ Communication Cable: Provides connectivity to Data Highway Plus networks at 230 kbps.
  • PCMK Card Compatible: Designed for 1784-PCMK and 1784-PCMK/B PCMCIA communication cards.
  • Secure Connector Wedges: Includes strain-relief wedges to prevent accidental cable disconnection.
  • Supports Legacy PLCs: Interfaces with PLC-2, PLC-3, and PLC-5 controllers and enhanced processor versions.
  • Loopback Diagnostics Support: Enables diagnostic testing when connected directly to the PCMK card.
  • RJ45 Connector Type: Provides a reliable and standardized connection point for DH+ communication.
  • Industrial-Grade Durability: Built for field use in programming, monitoring, and diagnostics.
  • Remote I/O Capability: Supports scanner functionality through compatible PCMK cards.

The 1784-PCM5 delivers the reliability and precision required for robust DH+ communication and PC-based programming in PLC-5 automation systems.

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