General Electric IC693PCM301 Programmable Coprocessor Module

The GE IC693PCM301 is a Programmable Coprocessor Module (PCM) designed for the GE Fanuc Series 90-30 PLC family. It provides advanced data manipulation, complex algorithm implementation, and custom communication protocol handling that go beyond the capabilities of standard PLC logic. Engineered with flexibility and high performance in mind, the IC693PCM301 enables seamless integration of BASIC and C applications, offering a powerful co-processing environment within the automation system.

This module acts as an embedded microcomputer within the PLC, allowing the user to offload time-intensive tasks such as string parsing, ASCII device interfacing, or proprietary protocol conversions. It is particularly suited for systems that require sophisticated communication or data-handling logic without compromising scan time on the main CPU.

Technical Specifications

Product Applications

The IC693PCM301 is widely applied in industrial automation environments where complex data processing and serial communication are needed. Common use cases include:

• Interfacing with bar code scanners, printers, HMIs, or serial sensors.

• Handling legacy device protocols not natively supported by the PLC.

• Performing mathematical computations beyond ladder logic.

• Implementing custom communication interfaces (e.g., Modbus ASCII, proprietary formats).

• Parsing and generating complex ASCII strings for data manipulation.

It is especially beneficial in manufacturing lines, utilities, transportation systems, and OEM equipment where custom logic and external device communication are integral to the control process.

Product Advantages

• Offloads CPU Tasks: Offloads complex or time-intensive operations from the PLC CPU, improving overall system performance.

• Flexible Programming: Supports both BASIC and C programming, enabling engineers to design precise custom logic.

• Expanded Serial Communication: Two serial ports provide robust options for device integration.

• Battery-backed Memory: Ensures critical user programs and data persist across power cycles.

• Scalable Integration: Fits seamlessly into the Series 90-30 architecture, maintaining compatibility and reducing integration time.

• Legacy Device Support: Facilitates continued use of legacy serial devices, reducing upgrade costs.

• Developer Tools: Comes with programming tools and debug environments for effective code development and testing.

FAQ

1. What programming languages does the IC693PCM301 support?

   The module supports BASIC and C programming languages for developing custom applications.

2. Can I connect barcode scanners to this module?

   Yes, it is commonly used to interface barcode scanners and other serial ASCII devices.

3. Does it require a separate power supply?

   No, it draws power directly from the PLC rack via the backplane.

4. Is it hot-swappable?

   No, you should power down the system before installing or removing the module.

5. How much user memory does it have?

   The module offers 192 KB of battery-backed SRAM for user applications and data.

6. What kind of devices can I connect to its serial ports?

   You can connect RS-232 compatible devices like printers, HMIs, and sensors.

7. Does it support Modbus?

   Yes, with custom programming in BASIC or C, it can implement Modbus ASCII or RTU protocols.

8. How can I program the module?

   Programming is done using the PCM Development Toolkit, which allows development and loading of C or BASIC programs.

9. Can it communicate with other PLCs?

   Yes, it can exchange data with other PLCs or control devices over serial protocols.

10. What happens to the data if power is lost?

    The battery-backed memory retains programs and data during power outages.