GE IC693PCM311 Programmable Coprocessor Module

Description

Technical Specifications

• Manufacturer: GE Fanuc / Emerson Automation
• Part Number: IC693PCM311
• Product Type: Programmable Coprocessor Module (PCM)
• Compatible System: GE Series 90‑30 PLC (modular CPU baseplates only; not compatible with embedded CPU models 311, 313, 323)
• Processor: 80188, 10 MHz
• Total Memory: 640 KB (RAM, battery‑backed)
• Dedicated MegaBasic Memory: 190 KB
• Programming Languages: MegaBasic, C
• Serial Communication Ports: 2 independent ports (RS‑232/RS‑485 configurable)
• Supported Protocols: Modbus RTU (master/slave), GE Fanuc CCM (Communication Control Module)
• Battery Backup: Requires IC693ACC301 lithium battery (for RAM retention during power loss)
• Power Consumption: 425 mA @ +5 VDC (backplane)
• LED Indicators: 3 status LEDs (Module OK, Port 1 Status, Port 2 Status; user‑configurable)
• Operating Modes: Program Mode, Run Mode (switch via front‑panel restart button)
• Operating Temperature: 0°C to +60°C (32°F to 140°F)
• Storage Temperature: ‑40°C to +85°C (‑40°F to 185°F)
• Humidity: 5%–95% RH, non‑condensing
• Shock/Vibration: 5 G (operating), 10 G (storage)
• Mounting: Series 90‑30 CPU baseplate (single slot; not for expansion/remote baseplates)
• Dimensions: 127 mm × 102 mm × 51 mm (5.0” × 4.0” × 2.0”)
• Weight: 0.45 kg (0.99 lbs)
• Certifications: CE, UL, CSA, RoHS

Key Features

1. Auxiliary Processing & Offloading

• Dedicated coprocessor: Offloads communication, data logging, and custom logic from the main CPU, improving scan time and system efficiency.
• 10 MHz 80188 processor: Executes MegaBasic/C programs independently of the PLC ladder logic.
• 640 KB battery‑backed RAM: Stores large custom programs, data tables, and communication buffers.

2. Dual Serial Ports & Multi‑Protocol Support

• 2 independent serial ports: Configurable for RS‑232 (point‑to‑point) or RS‑485 (multi‑drop) connectivity.
• Modbus RTU master/slave: Interfaces with third‑party devices (drives, meters, HMIs) for seamless integration.
• GE Fanuc CCM protocol: Enables peer‑to‑peer communication with other GE PLCs and remote I/O systems.
• High‑speed data transfer: Supports baud rates up to 115.2 kbps for fast, reliable communication.

3. Custom Programming Capability

• MegaBasic support: User‑friendly, high‑level language for complex math, string handling, and communication routines.
• C language compatibility: Enables advanced programming for custom algorithms, protocol conversion, and data processing.
• 190 KB dedicated MegaBasic memory: Ample space for large, feature‑rich applications.

4. Diagnostic & Operational Flexibility

• 3 user‑configurable LEDs: Indicate module health and port status; customizable for application‑specific diagnostics.
• Program/Run mode switch: Front‑panel restart button toggles between programming and operational modes.
• Battery‑backed memory: Preserves programs and data during power outages (requires IC693ACC301).
• Hot‑swap capable: Replace modules without shutting down the PLC (with compatible baseplates).

5. Seamless System Integration

• Single‑slot design: Fits in any Series 90‑30 CPU baseplate slot (except Slot 1, reserved for power supply).
• Backplane compatibility: Works with all modular Series 90‑30 CPUs (331, 341, 351, 363, 374).
• No expansion baseplate support: Installs only in primary CPU baseplates for direct system integration.

Applications

• Industrial Communication: Connects PLCs to HMIs, SCADA systems, barcode readers, printers, and ASCII devices via serial links.
• Protocol Conversion: Translates between Modbus RTU and GE CCM protocols for multi‑vendor system integration.
• Data Logging & Reporting: Executes custom MegaBasic/C programs to collect, process, and transmit production data to external systems.
• Remote Terminal Unit (RTU): Operates as a Modbus RTU master/slave for distributed monitoring and control in water, wastewater, and energy systems.
• Custom Algorithm Execution: Runs complex math, PID control, and motion algorithms independently of the main PLC logic.
• Legacy System Integration: Interfaces with older serial‑based industrial devices (e.g., legacy meters, drives, and controllers) in modern automation systems.