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SKU: IC693MDL645

GE Fanuc IC693MDL645 Series 90-30 24VDC 16-Point Discrete Input Module

The GE Fanuc IC693MDL645 is a 16-point, 24 VDC discrete input module for Series 90-30 PLCs. Operating with sink or source logic, it features a fast 1 ms response time, status LEDs, and a removable 20-terminal wiring block.

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Industrial Signal Processing and Automation

The IC693MDL645 serves as a reliable digital signal interface within the GE Fanuc (now Emerson Automation) Series 90-30 PLC ecosystem. Control engineers deploy this component to capture discrete 24 VDC data from the factory floor and transmit it directly to the central processor. Because the internal circuitry accommodates both positive and negative logic (sink or source wiring configurations), the unit integrates seamlessly with a diverse array of field devices. Industrial facilities utilize this hardware to track standard binary states from pushbuttons, limit switches, proximity sensors, and auxiliary contacts.

Operational Performance and Electrical Characteristics

The module features 16 distinct input channels arranged in a single isolated group, which shares a common power input terminal. To ensure responsive control loops, the unit delivers a rapid signal conversion speed, achieving a typical response time of 1 millisecond for both its activation (On) and deactivation (Off) transitions. The hardware operates reliably across a wide electrical spectrum, accepting raw input inputs from 0 to 30 VDC while maintaining a nominal rating of 24 VDC. During active operations, the internal logic draws 80 mA from the 5 VDC bus and 125 mA from the isolated 24 VDC backplane bus.

Electrical Thresholds

  • Rated Nominal Voltage: 24 VDC
  • Input Voltage Range: 0 to 30 VDC
  • Minimum On-State Voltage: 11.5 VDC
  • Maximum Off-State Voltage: 5.0 VDC
  • Minimum On-State Current: 3.2 mA
  • Maximum Off-State Current: 1.1 mA
  • Nominal Input Current: 7 mA at 24 VDC

Interface Diagnostics and Mechanical Design

The faceplate incorporates a protective mechanical swing door that conceals 20 robust screw terminal connections. This door features an integrated wiring diagram, which simplifies field installation and reduces commissioning errors. Furthermore, a blue color-coded strip indicates the low-voltage nature of the module, protecting personnel during maintenance routines. Real-time diagnostic evaluation occurs via a dedicated array of 16 individual green LEDs that mirror the logical status of each input channel. An autonomous “Module OK” LED continuously monitors the internal health of the module, ensuring rapid troubleshooting during a fault condition.

Technical Specifications

  • Manufacturer: GE Fanuc / Emerson Automation
  • Series: Series 90-30 PLC
  • Part Number: IC693MDL645
  • Module Type: Discrete DC Input Module
  • Number of Points: 16 Inputs (Single Group)
  • Logic Configuration: Positive / Negative Logic (Sink or Source)
  • Isolation: 1500 volts between field side and logic side
  • Dimensions: 3.5 cm x 13.0 cm x 13.5 cm
  • Weight: 0.28 kg
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ParameterSpecification
ModelIC697CGR935
BrandGE
OriginUSA
Weight0.75 kg
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Operating Temp0 deg C to 60 deg C
Power Consumption3.1 A
Processor96 MHz 80486DX4
Memory1 MB
Execution Speed0.4 microseconds (Boolean)

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  • 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.
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