GE IC693PCM311 Series 90‑30 Programmable Coprocessor Module (640KB)

Description

Hardware & Electrical Specifications

‑ Model：IC693PCM311 ‑ Part Number：IC693PCM311 ‑ Module Type：Series‑90‑30 Programmable Coprocessor Module (PCM) ‑ Mounting：Plug‑in any I/O slot on main CPU baseplate only, expansion racks are not allowed ‑ Backplane power：5 VDC @425 mA drawn from rack backplane ‑ On‑board memory：  • Total RAM：640 KB  • MegaBasic user program memory：190 KB ‑ Serial interfaces (shared 25‑pin D‑sub female connector)：  • Port1：RS‑422/RS‑485, half‑duplex / full‑duplex, isolated  • Port2：RS‑232, isolated ‑ Baud‑rate range：300‑115200 bps, two ports independently configurable ‑ Required split cable：IC693CBL305 ‑ Supported protocols：Modbus‑RTU master/slave, GE‑CCM inter‑PLC communication, custom protocol via MegaBasic / C language ‑ Memory backup：External lithium battery IC693ACC301, preserves RAM program and data after power‑off ‑ PCB treatment：Conformal coated for dust‑moisture‑corrosion resistance ‑ On‑board protection：Hardware watchdog, serial port surge suppression ‑ Compatibility note：Cannot run standalone; must pair with modular Series‑90‑30 CPU; forbidden for embedded CPU and expansion‑rack slots; full serial communication test mandatory after replacement.

Environmental Specifications

‑ Operating temperature：0 ℃ ~ +60 ℃ ‑ Storage temperature：‑40 ℃ ~ +85 ℃ ‑ Relative humidity：5%‑95% non‑condensing ‑ Installation location：Indoor industrial control cabinet, IP20 ‑ EMC compliance：IEC 61000‑6‑2 ‑ Certifications：CE, UL Class I Div 2 hazardous‑location certification

Mechanical Data

‑ Weight：approx 0.38 kg ‑ Dimension：Series‑90‑30 standard single‑slot module form‑factor ‑ Handling note：ESD‑sensitive coprocessor circuit, anti‑static wrist‑strap mandatory during handling; check backup‑battery status during maintenance

Main Functions

1. Independent coprocessor executes MegaBasic / C‑language programs, undertake serial communication polling, protocol conversion, data logging, string processing and floating‑point calculation, reduce main CPU scan‑time burden.
2. Dual isolated serial ports, realize Modbus‑RTU master to poll large‑quantity inverters, instruments and third‑party serial devices; implement GE‑CCM multi‑PLC interconnection.
3. Realize high‑speed data exchange with Series‑90‑30 CPU via backplane, transfer collected field serial data to PLC registers.
4. LED status indication on front panel:   ‑ Green COPROC OK：Module power‑on and self‑test pass   ‑ P1 OK：Port1 communication status   ‑ P2 OK：Port2 communication status   ‑ RESET button：Manual module soft reset

Installation & Wiring Requirements

1. Cut off Series‑90‑30 PLC rack power before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling module.
2. Insert IC693PCM311 fully into main baseplate I/O slot (not slot1 CPU slot, not expansion rack) and lock latch; install backup battery IC693ACC301.
3. Connect split cable IC693CBL305 to front‑panel 25‑pin connector; field serial wiring comply with GE hardware manual; separate serial signal cables from high‑power cables, connect shielding to protective ground terminal.
4. Complete protective grounding according to GE Series‑90‑30 hardware manual specification.
5. After replacement：power‑on rack, verify COPROC OK / P1 / P2 LED status; download PCM user program; perform serial‑device polling and backplane data exchange test.
6. Replacement note: Confirm modular‑type CPU; module cannot be placed in expansion rack; check battery health; full‑system commissioning test mandatory before unit put‑into‑service.