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- IC693PCM311
- Programmable Coprocessor Module
- USA
- 140 x 140 x 35 mm
- 0.476 kg
- Xiamen, China
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Product Overview
The GE IC693PCM311 Programmable Coprocessor Module is an advanced auxiliary processing module designed for the GE Series 90-30 PLC system. It functions as a secondary industrial processor, working alongside the main PLC CPU to handle complex computation, communication tasks, and custom control programs.
This module is commonly used in systems requiring high-speed data processing, serial communication handling, and advanced control logic execution beyond standard PLC capabilities.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE (GE Fanuc / Emerson) |
| Model | IC693PCM311 |
| Product Type | Programmable Coprocessor Module |
| System Compatibility | GE Series 90-30 PLC |
| Processor Type | 32-bit RISC architecture |
| Total Memory | 640 KB |
| User Program Memory | ~190 KB (MegaBasic) |
| Programming Languages | C, MegaBasic |
| Communication Ports | 2 serial ports (RS-232 / RS-485 capable) |
| Supported Protocols | Modbus RTU, GE CCM, ASCII |
| Operating Modes | Program mode / Run mode |
| Battery Backup | Lithium battery (RAM retention) |
| Backplane Power | ~400 mA @ 5 VDC |
| Slot Requirement | 1 slot (non-CPU slot) |
| Mounting Type | Rack-mounted |
| Material | Industrial-grade electronic module |
| Dimensions | ~140 × 140 × 35 mm |
| Weight | 0.476 kg |
| Operating Temperature | 0°C to 60°C |
Function and Working Principle
The IC693PCM311 operates as a parallel processing and communication co-processor within a PLC system.
Its working principle includes:
- Receiving data from the main PLC CPU via backplane communication
- Executing independent programs written in MegaBasic or C language
- Handling complex communication tasks (e.g., Modbus RTU, serial protocols)
- Managing external devices such as barcode scanners, printers, HMIs, and RTU systems
- Running in parallel with PLC scan cycles to offload CPU workload
This improves overall system performance, especially in communication-heavy applications.
Role in Industrial Control Systems
The IC693PCM311 plays a specialized role in GE Series 90-30 systems:
- Acts as an independent auxiliary processor
- Handles advanced serial and protocol communication
- Executes custom logic beyond standard ladder programming
- Integrates legacy industrial devices into modern PLC systems
- Reduces processing load on the main CPU
- Supports real-time industrial data handling tasks
Industrial Applications
The GE IC693PCM311 is widely used in:
- Industrial automation systems
- SCADA communication systems
- Barcode tracking and logistics systems
- Weighing and measurement systems
- Serial device integration (printers, scanners, RTUs)
- Process control systems requiring custom computation
Installation and System Integration
Recommended installation guidelines:
- Install in GE Series 90-30 PLC rack (non-CPU slot)
- Ensure compatibility with main CPU firmware and backplane
- Connect serial ports to external devices or communication networks
- Install and maintain lithium backup battery for program retention
- Configure communication parameters via GE programming software
Proper setup ensures stable dual-processor operation.
Compatible System Components
The IC693PCM311 typically works with:
- GE Series 90-30 CPU modules (IC693CPU series)
- Serial communication devices (RS-232 / RS-485 equipment)
- SCADA and HMI systems
- Barcode readers and industrial printers
- Modbus RTU and GE CCM network devices
- Legacy industrial control equipment
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| IC693PCM311 | Coprocessor Module | 640 KB memory, dual serial ports | Advanced communication systems |
| IC693PCM300 | Coprocessor Module | Lower memory variant | Basic coprocessing tasks |
| IC693PCM301 | Coprocessor Module | Enhanced processing version | Higher performance systems |
| IC693CMM321 | Communication Module | Ethernet/serial communication | Network expansion |
| IC693CPU364 | CPU Module | Main PLC processor | Primary control system |
Key Advantages
- Offloads communication and computation from PLC CPU
- Supports C and MegaBasic programming
- Dual serial communication ports
- Strong support for legacy industrial systems
- Flexible protocol handling (Modbus, CCM, ASCII)
- Reliable industrial-grade design
Technical FAQs
What is the main function of IC693PCM311?
It acts as an auxiliary processor for communication and advanced control tasks.
Does it replace the PLC CPU?
No, it works alongside the CPU as a coprocessor.
What programming languages does it support?
MegaBasic and C language programming.
What devices can it connect to?
Barcode scanners, printers, RTUs, HMIs, and serial industrial devices.
Conclusion
The GE IC693PCM311 Programmable Coprocessor Module is a powerful auxiliary processing unit for GE Series 90-30 PLC systems. With dual serial communication, programmable processing capability, and strong protocol support, it significantly enhances system flexibility and performance in complex industrial automation environments.