GE IC697PCM711 Series 90‑70 Programmable Coprocessor Module

Description

Hardware & Electrical Specifications

‑ Model: IC697PCM711 ‑ Part Number: IC697PCM711 ‑ Module Type: Series 90‑70 Programmable Coprocessor Module, occupies one slot on Series 90‑70 backplane ‑ Mounting: Series 90‑70 main rack or expansion rack ‑ Backplane power consumption:  • +5 VDC: 1.0 A maximum ‑ Processor: 12 MHz Intel 80C186 ‑ On‑board memory: 96 KB battery‑backed CMOS RAM (program & data) ‑ Expansion memory: Up to 512 KB via optional daughter‑board ‑ Serial interfaces: Two 25‑pin D‑Sub female ports, software selectable RS‑232 / RS‑422 / RS‑485 ‑ Baud‑rate: Simultaneous dual‑port operation up to 9.6 kbaud; single‑port max 19.2 kbaud ‑ Programming languages: MegaBasic, C language ‑ Supported protocol: CCM2 ‑ Real‑time clock: Synchronized to Series‑90‑70 main CPU calendar‑clock ‑ Reset: Front‑panel push‑button reset ‑ Battery: Lithium battery for memory retention; typical 10‑year shelf‑life at 20 °C, retains memory up to 6 months power‑off ‑ Diagnostics: Module self‑test, three front‑panel status LEDs, fault status accessible via backplane to main CPU ‑ PCB treatment: Conformal coated for dust, moisture and corrosion resistance ‑ Compatibility note: Works with all Series 90‑70 CPU families. Multiple PCM modules are allowed per rack. No hardware jumpers; all port parameters and application download are completed via PCM development software. Hot‑swap prohibited. After replacement, download user coprocessor application, verify serial‑port communication and battery health.

Environmental Specifications

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

Mechanical Data

‑ Weight: approx 0.40 kg ‑ Dimension: Series 90‑70 standard single‑slot module form‑factor

Main Functions

1. Off‑loads custom computation, data logging and non‑standard serial protocol tasks from main PLC CPU. Direct high‑speed access to Series 90‑70 PLC memory over backplane bus without requiring custom logic in main CPU application.
2. Dual‑task execution allows user application logic and serial communication services to run concurrently. Two independent serial ports connect to third‑party instruments, printers, operator terminals and external devices.
3. Battery‑backed memory preserves user coprocessor program and data through power‑loss events. Real‑time clock provides time‑stamp for data‑logging records.
4. Front‑panel LED indicators:   ‑ OK: Module self‑test passed   ‑ USER1: User‑defined application status indicator   ‑ USER2: User‑defined application status indicator

Installation & Wiring Requirements

1. Cut off full rack power supply before installation or replacement. Hot‑swap is not permitted. Apply ESD protection during module handling.
2. Insert IC697PCM711 into free slot of Series 90‑70 backplane and fasten module latch. Confirm lithium battery is correctly seated. Install optional memory daughter‑board if required by application.
3. Serial wiring comply with manual GFK‑0164G. Configure port electrical mode (RS‑232/422/485) in PCM development software. Keep serial cables separated from high‑voltage power cables. Reliable protective‑ground connection is mandatory.
4. After replacement: Power‑on rack power and check front‑panel LED status. Download coprocessor firmware and user application program via development PC. Validate backplane memory access and serial‑port data exchange with external devices.
5. Replacement note: Monitor lithium‑battery aging to avoid program/data loss upon battery failure. Full‑system commissioning test is mandatory before putting into service.