1747-C10 | Allen-Bradley SLC 500 6-Foot SLC Internal Communication Cable

Module Overview

The 1747-C10 is a specialized internal communication cable designed specifically for the Allen-Bradley SLC 500 modular hardware platform. This 6-foot cable is used to connect a 1747-DCM (Direct Communication Module) or a 1747-DMR module to a standard SLC 500 fixed controller or a modular SLC 5/01, 5/02, 5/03, 5/04, or 5/05 CPU. Unlike standard serial cables, the 1747-C10 is engineered with specific shielding and pinouts to facilitate high-speed data exchange across the SLC backplane architecture, ensuring deterministic performance for distributed I/O and peer-to-peer messaging.

Detailed Engineering Specifications

The 1747-C10 is a ruggedized industrial cable built to withstand the electrical noise and physical rigors of a control cabinet environment.

• Product Type: Communication Cable

• Product Family: SLC 500

• Length: 6 Feet (1.83 meters)

• Connector Type: 10-pin linear connector to 10-pin linear connector

• Wire Gauge: 24 AWG (standard industrial grade)

• Shielding: Foil and braid for high-frequency noise immunity

• Compatible Modules: 1747-DCM, 1747-DMR, and SLC 500 Chassis

• Jacket Material: Industrial-grade PVC (oil and chemical resistant)

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Physical Weight: 0.20 lbs (0.09 kg)

Network and System Integration

The primary use of the 1747-C10 is to bridge the communication gap between a "Master" PLC-5 or SLC 5/04 and a "Slave" SLC chassis via a Direct Communication Module. In this configuration, the cable carries the Remote I/O (RIO) or Data Highway Plus (DH+) signals from the DCM module to the local processor's internal bus. This allows the slave SLC to appear as a single I/O rack to the master controller, enabling complex distributed control strategies without the need for extensive long-distance wiring.

Installation Best Practices

When installing the 1747-C10, ensure the following to maintain signal integrity:

• Strain Relief: Use the integrated cable ties or clips to secure the 10-pin connectors. The pins on SLC modules are delicate, and excessive tension can lead to intermittent "Rack Faults."

• Routing: Avoid routing the communication cable parallel to high-voltage AC lines or Variable Frequency Drive (VFD) output cables. If the cable must cross power lines, ensure it does so at a 90° angle.

• Seating: Confirm the connector is fully seated and the locking tabs (if applicable) are engaged. A loose 1747-C10 can cause "Communication Lost" errors in the processor status file.

Technical FAQ

Can I use the 1747-C10 as a programming cable for my SLC 5/03?

No. The 1747-C10 is an internal module-to-processor cable. For programming an SLC 5/03 via the RJ45 (DH-485) port, you would require a 1747-PIC or 1747-UIC converter. For the DB9 (RS-232) port, a 1747-CP3 null-modem cable is needed.

What is the difference between the 1747-C10 and 1747-C11?

The only difference is the length. The 1747-C10 is 6 feet long, while the 1747-C11 is shorter (typically 1 foot), intended for modules located in the same or adjacent chassis.

Is this cable hot-swappable?

While the cable is passive, disconnecting it while the SLC processor is in "Run" mode will likely result in an immediate major fault (non-recoverable) and a halt of the control program. Always place the CPU in "Program" mode or remove power before changing communication cables.