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IC693PWR324 Image of IC694MDL645 IC694MDL645 In Stock! Input module 24 VDC 16 point POS/NEG logic. IC694M IC694MD IC694MDL PDFsupply

SKU 2176058  UPC 0160910980837

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Other Available Revisions for the IC694MDL645 ABCDLT

Common misspellings:
  • 1C694MDL645
  • lC694MDL645
  • IC69AMDL645
  • IC694MD1645
  • IC694MDL6A5
  • IC694MDL645

Technical Specifications for IC694MDL645

ManufacturerGE Fanuc
SeriesRX3i PACSystems
Part NumberIC694MDL645
Product TypeInput Module
Number of Inputs16
Module TypeLow-Voltage Module
Voltage TypeDC
Nominal Voltage24 Volts DC
Operating Voltage0 to 30 Volts DC
Operating Temperature32 to 140 degrees Fahrenheit

Product Description

The IC694MDL645 is a 16-Point, 24 Volt DC, Positive/Negative Logic, Input module of the GE Fanuc RX3i Series. This module provides 16 input points in 1 group with a common power input terminal.  It has discrete input and no backplane restrictions. This input module can be wired for either positive logic or negative logic. There are 16 LEDs to indicate the ON/OFF status of the respective points.

This module is compatible with many different input devices and field devices. Switches, buttons and BCD thumbwheels are examples of external input devices that are compatible with this component. The IC694MDL645 provides an interface between these devices and the PLC, allowing them to cooperate.  The I/O module can also provide an interface between the PLC and external output modules. Such examples include interposing relays, contactors and indicator lamps. GE Fanuc has a wide range of I/O modules such as this one, which support various voltage ranges and types. Whatever the isolation or capacity you may need, users can find the right module to work with their application.  

IC694MDL645 is a low-voltage module, as denoted by the blue bands on the label. Users can install it in any slot of the RX3i system. When the RX3i is under power, users can insert the module into or remove it from the Universal backplane of the system. However, it must be noted that when doing this, the field side terminal block should be removed from the module. 

Technical Specifications

Rated Voltage: 24 volts DC
# of Inputs: 16 (1 group)
Freq: N/A
Input Current: 7 mA
Input Voltage Range:   0 to +30VDC
Power Consumption:   80 mA from 5V bus, 125 mA from 24V supply



The GE Fanuc IC694MDL645 input module is a member of the RX3i PACSystems module series. This module is rated for a nominal voltage of 24 Volts DC and it has 16 inputs that are all in 1 group. Its operating input voltage range is from 0 to 30 Volts DC. The IC694MDL645 input module is designed to be a low-voltage RX3i PACSystems module, and it is marked as a low-voltage module with the blue label that it comes with. The input current rating of the IC694MDL645 input module, and its current consumption ratings are 80 milliamps of current at 5 Volts DC Bus voltage, and 125 milliamps of current at 24 Volts DC supply voltage. All 16 of the inputs on this module can support either positive or negative logic.


The operating temperature range for the GE Fanuc RX3i PACSystems IC694MDL645 input module is 32 to 140 degrees Fahrenheit or 0 to 60 degrees Celsius, while the module’s storage temperature range is -40 to 185 degrees Fahrenheit or -40 to 85 degrees Celsius. This input module should be stored and used in environments that are somewhat humid but that do not experience condensation. The tolerable humidity range for the IC694MDL645 input module for safe operation and storage is from 5% to 95%. This module can be installed in an RX3i PACSystems PLC or removed from it safely while the PLC is powered on as long as the field side terminal for the module is not connected. The IC694MDL645 input module can be installed in any available slot in the RX3i PACSystems PLC backplane.

Technical Information


Rated Voltage

24 Vdc

Input Voltage Range

0 to +30 Vdc

Inputs per Module

16 (one group with a  single common)

Isolation: Field to Backplane (optical) and to  frame ground

250 Vac continuous; 1500 Vac for one minute

Input Current

7 mA (typical) at rated voltage

Input  Characteristics


On–state Voltage

11.5 to 30 Vdc

Off–state Voltage

0 to +5 Vdc

On–state Current

3.2 mA minimum

Off–state Current

1.1  mA maximum

On  response Time

7 ms typical

Off  response Time

7 ms typical

Power  Consumption: 5Vdc

80 mA (all inputs on) from 5Vdc bus on backplane

Power  Consumption: 24Vdc17

125 mA from the Isolated 24Vdc backplane bus or from user supplied power


Troubleshooting IC694MDL645

Troubleshooting information is available on IC694MDL645's website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC694MDL645

PDF Supply can repair your IC694MDL645 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

IC694MDL645 RX3i 24VDC Voltage Discrete Input Module with Terminal Block (20 Screws)


IC694MDL645 RX3i 24VDC Voltage Discrete Input Module with Terminal Block


The IC694MDL645 RX3i 24VDC Voltage positive/negative logic 16 point discrete input module is being supplied with terminal block (20 screws), as per our GE Control Systems Solutions Catalog GFA-406.


ME Power Supply Load Tab and IC694MDL645


When a certain number of IC694MDL654 input modules are added to any rack in a 90-30 target or to an Expansion Rack in an RX3i target, the Power Supply Load Tab in Machine Edition HWC marks the Power Supply overloaded.


Input power for the IC694MDL654 may be supplied from the module’s 24V Out terminal, or from an external power source. Only when using the modules 24V Out terminal, power is supplied from the backplane’s 24V Isolated power rail.

When adding the module to a rack, ME assumes module inputs are powered from the module’s 24V Out, and adds 0.125A to the current consumption on the backplane’s 24V Isolated rail. This may quickly lead to an overload indication like shown on the picture below.

If input power is supplied from an external source, users may eventually disregard the overload indication:

For each IC694MDL645 subtract 0.125A from the indicated current on the 24V Isolated rail. Then (re)calculate all wattage(s). The maximum supplied on the 24V Isolated rail is 20Watts.

If the total power consumption of the system from all three voltage rails (5V, 24V Relay and 24V Isolated) is less than 30Watts, the overload indication in ME may be disregarded.



Customer Questions and Answers

  • Question:  What is an IC694MDL645?  Answer:  The IC694MDL645 is a 16-Point, Positive/Negative Logic, 24 VDC, Input module from the GE Fanuc RX3i Series. 
  • Question:  What does IC694MDL645 provide?  Answer:  This module provides 16 input points in 1 group with a common power input terminal. 
  • Question:  How can the module be wired?  Answer:  This input module can be wired for either positive or negative logic.
  • Question:  With what are the input characteristics compatible?  Answer:  The input characteristics are compatible with a wide range of input devices, such as pushbuttons, limit switches, and electronic proximity switches. 
  • Question:  Current into an input point results in what?  Answer:  Current into an input point results in a logic 1 in the input status table (%I).
  • Question:  By what power do field devices operate?  Answer:  Power to operate field devices can be supplied by the user.
  • Question:  Sixteen green LEDs indicate what?  Answer:  Sixteen green LEDs indicate the ON/OFF status of points 1 through 16. 
  • Question:  The blue bands on the label let you know what?  Answer:  They let you know that IC694MDL645 is a low-voltage module.
  • Question:  Into what slot can IC694MDL645 be installed?  Answer:  This module can be installed in any I/O slot of an RX3i system. 
  • Question:  What should I do if my IC694MDL645 is not working properly?  Answer:  Your IC694MDL645 may need repair

For more information on the IC694MDL645 16-Point, Positive/Negative Logic, 24 VDC, Input Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.

 Coming soon

ST. LOUIS, Feb. 1, 2019 – Emerson today announced it has completed the purchase of Intelligent Platforms from General Electric.

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