GE IC697MDL740 Discrete Output Module

GE IC697MDL740 Discrete Output Module

Product Overview
The IC697MDL740 is a discrete DC output module for the GE Fanuc Series 90-70 PLC system. It provides 16 isolated DC output points used to control relays, solenoids, indicators, contactors, and other field devices. The module is designed for 24 VDC and 48 VDC applications and is commonly found in industrial automation, process control, and heavy machinery systems. This product has been discontinued by the manufacturer and is typically supplied as a replacement or spare part for existing Series 90-70 installations.

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Description

GE IC697MDL740 Discrete Output Module

Technical Specifications

  • Brand: GE Fanuc
  • Model: IC697MDL740
  • Product Type: Discrete DC output module
  • System Platform: Series 90-70 PLC
  • Number of Outputs: 16 points
  • Output Voltage: 24 VDC / 48 VDC
  • Output Current per Point: 2 A
  • Output Isolation: Four isolated groups of 4 points each
  • Field Wiring: Removable terminal block
  • Status Indication: LED indicators per output point
  • Module Status LEDs: Module OK and fault indication
  • Configuration: Software configured through Series 90-70 programming software
  • Hot Insertion: Supported when installed in a powered Series 90-70 rack
  • Product Status: Discontinued by manufacturer

Functional Features

  • 16 DC Output Points: Provides discrete ON/OFF control for field devices.
  • 24/48 VDC Compatibility: Supports common industrial DC control voltages.
  • 2 A per Point: Suitable for relays, solenoid valves, pilot lights, and small contactors.
  • Four Isolated Groups: Reduces ground-loop problems and improves noise immunity.
  • LED Status Indicators: Each output point has an LED to show ON/OFF status.
  • Module Diagnostics: Reports module health and fault conditions to the CPU.
  • Software Configuration: No DIP switches; configuration is handled in PLC software.
  • Hot-Swap Capability: Allows replacement without shutting down the entire rack.
  • Rugged Industrial Design: Built for continuous operation in factory environments.

Application Scenarios

  • Industrial PLC control systems
  • Process automation and batch control
  • Machine tool and assembly line control
  • Solenoid valve and relay control
  • Conveyor and material handling systems
  • Oil and gas process control
  • Power plant auxiliary control systems
  • Retrofit and maintenance of Series 90-70 PLC systems

Performance Parameters

  • Output Current Rating: 2 A per point.
  • Voltage Range: 24 VDC and 48 VDC field outputs.
  • Isolation Groups: Four groups of 4 points each.
  • Response Time: Determined by PLC scan time and output switching characteristics.
  • Diagnostic Coverage: Module status and per-point status visible to the CPU and operator.
  • Reliability: Designed for long-term industrial service in Series 90-70 racks.

Material Composition

  • Module Housing: Industrial-grade plastic enclosure.
  • PCB: Multi-layer printed circuit board with output driver circuits.
  • Output Drivers: Solid-state switching components for DC loads.
  • Isolation Barriers: Electrical isolation between output groups.
  • Terminal Block: Removable screw-type connector for field wiring.
  • LED Indicators: Output status and module status indicators.
  • Backplane Connector: Interfaces with the Series 90-70 rack bus.

Structural Features

  • Single-Slot Module: Occupies one slot in a Series 90-70 PLC rack.
  • Front Terminal Block: Allows easy wiring and maintenance.
  • Per-Point LEDs: Clearly visible output status indication.
  • Module Status LEDs: Show power, communication, and fault conditions.
  • Robust Backplane Interface: Connects directly to the PLC rack bus.
  • Compact Industrial Form Factor: Fits standard Series 90-70 rack layouts.

Working Principle
The IC697MDL740 receives output commands from the Series 90-70 CPU through the rack backplane. When the PLC program sets an output bit to ON, the corresponding driver circuit closes and supplies DC voltage to the field device. When the output is OFF, the driver opens and the field device is de-energized. The module reports its status to the CPU and provides per-point LEDs for local troubleshooting. Isolated output groups help prevent electrical noise and ground faults from affecting unrelated circuits.

Installation Requirements

  • Install only in a GE Fanuc Series 90-70 PLC rack.
  • Verify rack power is within specification before installation.
  • Insert the module firmly into the slot until the backplane connector seats.
  • Connect field wiring to the removable terminal block according to the wiring diagram.
  • Keep DC output wiring separate from AC power and analog signal wiring.
  • Use appropriate fusing or circuit protection for field loads.
  • Configure the module in the Series 90-70 programming software.
  • Verify output voltage and polarity before connecting field devices.

Precautions for Use

  • Do not exceed the 2 A per-point current rating.
  • Do not connect AC loads to DC output points.
  • Verify field voltage matches the 24/48 VDC rating.
  • Do not install or remove modules while handling live field wiring.
  • Replace failed modules with the same IC697MDL740 model.
  • Keep firmware and PLC configuration backups before maintenance.
  • Only qualified control engineers should service the module.
  • Refer to the official GE Fanuc Series 90-70 documentation for exact ratings and wiring.

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