IC693PCM311 GE Fanuc 640K RAM Programmable Coprocessor

Product Overview

The GE Fanuc IC693PCM311 is a versatile Programmable Coprocessor Module (PCM) designed to expand the computational and communication capabilities of the Series 90-30 PLC. This module acts as an auxiliary processor, offloading complex tasks from the main CPU. With a net weight of approximately 0.39 kg, this module provides a powerful yet compact solution for advanced data handling and multi-port serial communication within a single PLC rack.

Enhanced Memory & Communication

High-Capacity Data Processing

The IC693PCM311 is equipped with 640 K of RAM, providing ample space for complex user programs and data storage. It specifically supports 190 K of MegaBasic, a powerful programming language that allows engineers to write sophisticated algorithms for data manipulation and math-heavy calculations. Despite its lightweight 0.39 kg frame, it significantly boosts the analytical power of the Series 90-30 system.

Dual Serial Connectivity

This coprocessor adds two independent serial ports to the PLC, supporting industry-standard protocols such as Modbus RTU and CCM. These ports allow the PLC to communicate simultaneously with various peripheral devices, including barcode scanners, HMIs, and third-party controllers. The module features three LED status indicators on the front panel for real-time diagnostics of power and port activity.

Technical Specifications

Installation & Compatibility

The IC693PCM311 is compatible with all GE Fanuc Series 90-30 CPU, remote, and expansion baseplates. Installation is straightforward: power off the PLC chassis, insert the module into any available slot except Slot 1 (which is reserved for the CPU), and secure it with the mounting screw. Its low power draw of 200 mA @ 5 VDC ensures minimal impact on the system power supply while providing maximum processing utility.

Reliable Field Performance

At just 0.39 kg, the IC693PCM311 is built for durability in industrial environments, operating effectively within a temperature range of 0 °C to 60 °C. The module uses a high-performance Lithium battery (replaceable with IC693ACC301) to ensure that your MegaBasic programs and critical data are retained even during a complete power loss. This makes it an essential tool for high-uptime applications like water treatment and energy monitoring.

Technical FAQs

Q1: Why can't I install this module in Slot 1?
A1: In the Series 90-30 architecture, Slot 1 is reserved for the main CPU module. The PCM is a coprocessor and must reside in any other I/O slot (Slots 2 through 10 depending on the baseplate).

Q2: Do I need special software to program this module?
A2: Yes, programming the PCM typically requires PME (Proficy Machine Edition) or legacy Logicmaster 90-30 software, specifically using the MegaBasic programming environment.

Q3: Does the 0.39 kg weight include the battery?
A3: Yes, the 0.39 kg refers to the weight of the complete module including the internal Lithium battery. Shipping weight may be slightly higher due to protective anti-static packaging.