Product Details
Product Overview
The 1746-C7 serves as a critical hardware bridge within the SLC 500 modular controller system. This high-density interconnect cable facilitates seamless backplane communication between two local chassis. Engineered for reliability in industrial environments, the 1746-C7 (PN: 1746-C7) ensures that the processor can address I/O modules across extended rack configurations without signal degradation.
Technical Specifications
-
Manufacturer Allen-Bradley / Rockwell Automation
-
Hardware Category PLC Chassis Components
-
Product Series SLC 500 Modular Hardware
-
Model Number 1746-C7
-
Primary Function Backplane Interconnect (Chassis-to-Chassis)
-
Physical Length 0.5 feet (0.15 meters / 6 inches)
-
Slot Requirement Occupies 1 slot on each connected chassis
-
Current Draw at 5V DC 110 mA
-
Current Draw at 24V DC 85 mA
-
Module Compatibility SLC 500 Fixed and Modular Hardware
-
Interconnect Support Supports Analog and Thermocouple input modules across the backplane
-
Ancillary Hardware Compatible with 1492-CABLE010H and 1792-IFM40F interface systems
-
Shipping Weight 0.13 lbs (0.06 kg)
Application and Installation
The 1746-C7 is specifically designed for side-by-side chassis mounting. Because the cable length is fixed at 6 inches, it provides the lowest possible impedance for high-speed data transfer between the CPU chassis and the expansion chassis. For vertical mounting or wider spacing, engineers should consider longer variants like the 1746-C9.
Frequently Asked Questions
-
Does the 1746-C7 require a separate power supply?
No, the cable draws its operating current (110mA @ 5V / 85mA @ 24V) directly from the SLC backplane power supply.
-
Can I hot-swap this cable while the PLC is running?
It is strongly recommended to remove all system power before installing or removing the 1746-C7 to prevent backplane shorts or data corruption.
-
Is the 1746-C7 shielded?
Yes, it features industrial-grade shielding to protect the sensitive backplane bus signals from electromagnetic interference (EMI) typical in factory environments.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.