GE Fanuc IC694MDL645 | 16-Point 24VDC Digital Input Module

The IC694MDL645 is a reliable 24VDC input module from the PACSystem RX3i series, now under Emerson Automation, previously part of GE Fanuc. This module is designed for efficient and flexible industrial automation, offering a seamless integration with various input devices in modern systems.

Key Features

16 Input Channels: The module offers sixteen (16) input channels in one group, simplifying the wiring process.
Positive/Negative Logic: It supports both positive and negative logic wiring configurations, making it highly versatile for different field devices.
Wide Input Voltage Range: The module accepts a 0-30 VDC input voltage range, with 24 VDC as the nominal input voltage for optimal operation.
Energy Efficient: It consumes 80 mA from the 5VDC backplane and 125 mA from a 24VDC external supply, ensuring efficient power usage.
Fast Response Time: With a typical response time of 7 ms, the IC694MDL645 processes signals quickly and reliably.

Technical Specifications

Specification	Value
Manufacturer	Emerson Automation (GE Fanuc)
Product Line	PACSystem RX3i
Part Number	IC694MDL645
Weight	0.38 lbs (0.17 kg)
Series	RX3i PACSystem
Description	Discrete input module
Rated Voltage	24 VDC
Number of Channels	Sixteen (16)
Wiring Configuration	Positive/Negative Logic
Input Current	7 mA
Input Signal Range	0 – 30 VDC
Nominal Input Voltage	24 VDC
Power Consumption	80 mA @ 5VDC, 125 mA @ 24VDC
Operating Temperature	32°F to 140°F (0°C to 60°C)
Storage Temperature	-40°F to 185°F (-40°C to 85°C)
On-State Voltage	11.5 – 30 VDC
Off-State Voltage	0 – 5 VDC
On-State Current	3.2 mA
Off-State Current	1.1 mA
Response Time (On-State)	7 ms
Humidity	5% to 95%, non-condensing
Product Lifecycle	Active

Overview

The IC694MDL645 module offers sixteen discrete input points, ideal for integration into industrial systems requiring high performance and reliability. You can wire this module for both positive and negative logic, allowing flexible compatibility with various input devices such as pushbuttons, limit switches, and proximity sensors.

Each channel in the module accepts an input voltage range from 0 to 30 VDC, with a nominal voltage of 24 VDC. The on-state voltage ranges from 11.5 to 30 VDC, while the off-state voltage is between 0 and 5 VDC. Input current is 3.2 mA in the on-state and 1.1 mA in the off-state.

In terms of performance, the module has a fast response time of 7 ms per input channel, ensuring the system operates efficiently in real-time applications. This module consumes 80 mA at 5VDC and 125 mA at 24VDC, providing excellent energy efficiency for a wide range of industrial applications.

Practical Applications

The IC694MDL645 is compatible with pushbuttons, limit switches, proximity sensors, and auxiliary contacts. It performs excellently in RX3i systems and also supports distributed I/O configurations for RX7i systems.

The module’s 16 green LEDs indicate the on/off status of each input point. When an input is active, its corresponding LED lights up, offering clear visual feedback for system status monitoring.

Key Benefits

Visual Indication: The 16 LEDs make it easy to monitor the status of each input channel.
Flexible Configuration: The module supports both positive and negative logic, offering versatility for various applications.
Robust Protection: It features continuous isolation ratings of 250 VAC and 1500 VAC for 1 minute, ensuring reliable protection in industrial environments.