Product Overview

The 100% Brand New GE IC693CHS391M serves as the main CPU baseplate for the Series 90-30 PLC system. It provides the physical mounting points and electrical backplane bus for the power supply, CPU module, and up to nine I/O or option modules. This baseplate features a dedicated CPU slot (Slot 1) and a 25-pin D-sub connector on the right side to link expansion or remote I/O racks, forming the core architecture of the control system.

Technical Specifications

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  Part Number: IC693CHS391M

   

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  Platform: GE Series 90-30

   

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  Total Slots: 10 (1 Power Supply + 1 CPU + 9 I/O/Option)

   

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  Slot Configuration:

   

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  Leftmost Slot: Power Supply (e.g., IC693PWR321)

   

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  Slot 1: CPU or Special Option Module (e.g., FIP Scanner)

   

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  Slots 2-10: I/O or Option Modules

   

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  Expansion Connector: 25-pin D-sub Female (Right Side)

   

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  Max Expansion Racks: Up to 7 (depends on CPU model)

   

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  Backplane Current Draw: Approx. 420 mA @ 5 VDC

   

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  Rack ID: Fixed at 0 (Rack 0)

   

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  Mounting: Panel Mount (Flange)

   

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

   

Engineering Advantages

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  Centralized Control Architecture: The baseplate anchors the entire 90-30 system by hosting the CPU. It distributes 5V, 24V, and logic signals across the backplane, ensuring synchronized data transfer between the processor and all local I/O modules without external wiring.

   

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  Scalable Distributed I/O: The 25-pin expansion port connects to IC693CHS392 (Expansion) or IC693CHS397/398 (Remote) baseplates. Engineers extend the system to remote panels or field locations (up to 700 feet for remote racks), reducing home-run wiring costs for widely dispersed sensors and actuators.

   

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  Fixed Slot Logic: The baseplate enforces a strict slot hierarchy (Power Supply left, CPU in Slot 1). This standardization prevents wiring errors during module replacement and ensures technicians install critical components in their designated, pinned locations for correct bus termination.

   

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  Robust Industrial Housing: The metal chassis provides structural rigidity and EMI shielding. It mounts securely to the panel via flanges, resisting vibration and maintaining solid pin contact with module backplanes in harsh manufacturing environments.

   

FAQs

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  Can I use the IC693CHS391M without a CPU?

  No. This is a CPU baseplate designed specifically to house a Series 90-30 CPU in Slot 1. If you only need to add more I/O to an existing system that already has a CPU rack, you must use an Expansion Baseplate (IC693CHS392) or a Remote Baseplate (IC693CHS397/398).

   

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  Does the "M" revision change the slot configuration?

  No. The IC693CHS391M functions identically to previous revisions (A through L). The "-M" suffix indicates manufacturing updates or component changes. The 100% Brand New unit drops into existing systems as a direct mechanical and electrical replacement.

   

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  What occupies the "Leftmost Slot"?

  The leftmost slot (unnumbered) exclusively accepts a Series 90-30 Power Supply module (such as IC693PWR321 or IC693PWR330). It does not count as one of the 10 configurable slots (Slot 1-10) and physically differs to prevent incorrect module insertion.

   

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  How do I set the Rack Number?

  The IC693CHS391M always defaults to Rack 0 (the CPU rack). You do not set a DIP switch for this baseplate. You only set the Rack ID (1-7) via DIP switches on expansion or remote baseplates connected to the 25-pin port.