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SKU: IC693CPU351

GE Fanuc IC693CPU351 Series 90-30 PLC Processor Module

The GE Fanuc IC693CPU351 is a high-performance 25 MHz CPU for Series 90-30 PLCs. It features 240KB user memory, three serial ports, and supports up to 2048 I/O points, providing robust control for complex industrial automation and DCS applications.

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Product Overview

The General Electric IC693CPU351 acts as a high-performance computational core for the Series 90-30 Programmable Logic Controller (PLC) family. This module integrates an 80386EX processor operating at 25 MHz, significantly boosting execution speeds for complex logic and floating-point math compared to entry-level units. Designed for scalability, the IC693CPU351 manages large-scale I/O architectures while maintaining a compact footprint within a standard 90-30 baseplate.

Core Functional Capabilities

  • Advanced Memory Architecture: This processor provides 240 KB of user-configurable memory, which accommodates extensive ladder logic programs, register data, and diagnostic storage.
  • Expanded I/O Capacity: The module supports up to 2048 discrete inputs/outputs and 32,640 analog channels, making it suitable for sophisticated distributed control systems (DCS).
  • Serial Communications: It features three integrated serial ports that facilitate simultaneous connections to programming terminals, HMI devices, and peripheral sensors via SNP/SNP-X protocols.
  • High-Speed Logic Execution: By utilizing an optimized 25 MHz clock speed, the CPU handles over 2000 timers and counters with minimal scan-time impact.

Technical Specifications

  • Manufacturer: GE Fanuc (General Electric)
  • Model Identifier: IC693CPU351
  • Product Series: Series 90-30
  • Processor Type: 80386EX, 25 MHz
  • User Memory: 240 Kilobytes
  • Power Requirements: 890 mA at 5V DC
  • Discrete I/O Points: 2048 (Any mix of Inputs/Outputs)
  • Analog I/O Channels: 32,640
  • Physical Dimensions: 3.6 x 13 x 13.5 cm
  • Operating Standards: Supports PCM, CMM, and Ethernet interface modules

Installation and Protection

Furthermore, ensuring electrical stability requires strict adherence to grounding protocols. The IC693CPU351 incorporates dedicated grounding terminals to mitigate industrial noise. Technicians must utilize the standard green grounding wire or the specialized grounding bracket during installation to maintain signal integrity. Because this module supports hot-plugging of certain I/O modules on the rack, it enhances system availability during maintenance cycles.

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The GE IC694MDL645, also cataloged as the IC694MDL645 Digital Input Module, operates as a dedicated hardware component for signal acquisition within PACSystems RX3i control networks. Incoming field signals are processed through sixteen discrete channels, and the resulting state data is transmitted to the backplane. Electrical compatibility with both positive and negative logic configurations is maintained, and operational states are continuously monitored via integrated LED indicators.

Hardware Specifications

ParameterSpecification
ModelIC694MDL645
BrandGE
OriginUSA
Weight0.3 kg
Dimensions3.5 cm x 13.2 cm x 13.5 cm
Operating TempStandard Industrial Range
Power ConsumptionBackplane Dependent
Input Channels16
Rated Voltage24 VDC
ON-state Voltage11.5 VDC to 30 VDC
OFF-state Voltage0 VDC to 5 VDC
Response Time7 ms (typical)

PLC and Control Network Integration

System communication velocity and deterministic performance are regulated by the PACSystems backplane architecture. Signal integrity is preserved through high-level galvanic isolation, rated at 1500 VAC for one minute, whereby electrical noise interference is mitigated. Furthermore, firmware flash compatibility is ensured during module replacement, provided that the backplane remains energized within the specified voltage tolerances. The module is engineered for integration within both local and remote RX3i I/O racks, while support for RX7i systems is provided exclusively in distributed I/O configurations.

Frequently Asked Questions

Q: Is the module capable of being hot-swapped while the system is powered?A: Yes, the module is designed to be extracted and inserted while the RX3i backplane is energized; however, field wiring must be verified to ensure no short-circuit conditions are created during the removal process.Q: How is the signal response time managed in high-speed applications?A: A typical response time of 7 milliseconds is imposed by the hardware filter circuits. This latency is inherent and should be accounted for when high-speed pulse capture is required.

Field Installation Guidelines

  • The module is to be mounted onto the designated RX3i backplane slot. A mechanical click is heard when the module is fully seated.
  • Prior to wiring, the 24 VDC power supply must be verified for voltage stability.
  • Signal wires are to be connected to the terminal block. A secure, firm connection is required to prevent intermittent signal loss caused by vibration.
  • Shielding must be grounded at the designated earth terminal to ensure that electromagnetic interference is properly diverted.
  • Once the module is seated and wired, the status LEDs are to be inspected for illumination corresponding to active field device states.
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GE IC697CGR935 One Slot Controller Module

Configured for redundant processing tasks in Series 90-70 networks, the GE IC697CGR935 (IC697CGR935 One Slot Controller Module) provides direct physical and electrical execution of logic in hot-standby architectures. This controller operates with a 96 MHz 80486DX4 microprocessor to manage up to 12K discrete I/O points and 8K analog I/O points. Synchronization between primary and secondary units is maintained through backplane communication, facilitating seamless failover transitions.

Hardware Specifications

ParameterSpecification
ModelIC697CGR935
BrandGE
OriginUSA
Weight0.75 kg
Dimensions4.0 cm x 21.8 cm x 29.1 cm
Operating Temp0 deg C to 60 deg C
Power Consumption3.1 A
Processor96 MHz 80486DX4
Memory1 MB
Execution Speed0.4 microseconds (Boolean)

Industrial Control System Performance

The IC697CGR935 relies on high-velocity backplane bus communication to ensure deterministic synchronization between redundant modules. Furthermore, firmware flash compatibility allows for controlled version updates within the Series 90-70 environment, thereby maintaining consistency across logic execution cycles. In addition, I/O density scaling is supported through the backplane interface, which enables the controller to process large datasets without exceeding defined timing constraints. Finally, Profinet and EtherNet/IP deterministic network integration requirements are managed via specific communication coprocessors when utilized in integrated automation architectures.

Frequently Asked Questions

Q: What is the failover behavior if the primary controller experiences a fault?A: In a redundant pair, the secondary controller monitors the heartbeat of the primary. Upon detection of a primary fault, the secondary transitions to the active state instantaneously to prevent interruption of the process control loop.Q: Are there specific thermal requirements for operation at ambient temperatures above 50 deg C?A: Yes. Forced air cooling is required when the operating environment exceeds 50 deg C to ensure the heat dissipation of the 80486DX4 microprocessor and internal circuitry remains within specified safe limits.

Field Installation Guidelines

  • Ensure the rack slot is free of debris before inserting the module to guarantee proper contact with the backplane connector.
  • The module must be seated flush against the rack frame and secured using the provided mounting hardware to ensure electromagnetic compatibility and grounding.
  • Shielded serial cables connected to the RS232 or RS485 interfaces should be grounded at the controller end to mitigate noise interference in high-EMI environments.
  • Upon initial power-up, verify that the 3-position switch is set to the correct mode (Run/Stop) and that status LEDs indicate valid processor health before establishing field I/O connectivity.
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Configured for discrete AC signal acquisition in the PACSystems RX3i backplane architecture, the GE IC694MDL240 (IC694MDL240 Volt AC Input Module) provides direct electrical input monitoring of field-operated switching devices and AC-powered sensing circuits. The module supports 16 input channels for 120 VAC systems, accepts 85-132 VAC input signals at 50/60 Hz, and interfaces with the RX3i controller through a single-slot backplane connection.

Suffix Breakdown & Model Matrix

The available documentation identifies a single catalog number, IC694MDL240, without any documented suffix variants or ordering-code subdivisions. No suffix matrix is specified by the manufacturer data provided.

Hardware Specifications

ParameterSpecification
ModelIC694MDL240
BrandGE
Product SeriesPACSystems RX3i
Module TypeVolt AC Input Module
Input Channels16 discrete inputs
Input Voltage Range85-132 VAC
Nominal Input Voltage120 VAC
Input Frequency50/60 Hz
ON-State Voltage74-132 VAC
OFF-State Voltage0-20 VAC
ON Response Time30 ms
OFF Response Time45 ms
Backplane Current Consumption90 mA
Isolation Rating250 VAC continuous, 1500 VAC for 1 minute
Status IndicationIndividual channel LEDs
MountingSingle-slot RX3i backplane installation
OriginUSA
Weight0.28 kg
Dimensions3.5 x 13.2 x 13.5 cm
Operating TempNot specified in provided documentation
Power ConsumptionNot specified in provided documentation
ComplianceUL 508
Environmental ClassificationClass 1, Division 2 compatible applications

Backplane Communication and I/O Density Scaling

The IC694MDL240 occupies a single slot within the PACSystems RX3i I/O rack while providing 16 discrete AC input channels. This channel density enables consolidation of field contact signals including pushbuttons, limit switches, auxiliary contacts, and proximity switches. Data transfer between the module and the controller occurs through the RX3i backplane interface, eliminating separate communication wiring for individual input channels.The module draws 90 mA from the backplane supply and can be installed in any compatible RX3i slot supported by available system I/O capacity. Channel status is reported through dedicated front-panel LEDs, allowing local verification of field signal presence during commissioning and troubleshooting.

Frequently Asked Questions

Q: Does the IC694MDL240 support hot insertion or hot removal? A: The supplied documentation does not specify hot-swap capability. Module insertion and removal should follow the RX3i system maintenance procedures and applicable controller power-state requirements.Q: What field devices can be connected to the input channels? A: The module is intended for AC discrete input signals generated by devices such as push-button switches, limit switches, relay contacts, and AC-powered proximity sensors operating within the specified voltage range.Q: What isolation protection is provided between field wiring and module electronics? A: The module provides optical isolation rated at 250 VAC continuous voltage and 1500 VAC for a 1-minute test interval.

Field Installation Guidelines

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  • Separate AC input wiring from high-current motor and drive conductors to reduce induced electrical noise.
  • Terminate cable shields according to the facility grounding standard and avoid multiple shield ground points unless required by the site design specification.
  • Confirm correct channel addressing and field terminal assignments before controller startup.
  • Inspect LED channel indicators during commissioning to verify correspondence between field device operation and controller input status.
  • Follow lockout and electrical safety procedures before connecting or disconnecting field wiring.
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