中文版
Phone: 
Email: 
WhatsApp: Description
GE IC694MDL660 Digital Input Module
Product Overview
The GE IC694MDL660 is a 32-channel digital input module designed for GE’s RX3i PACSystems, a robust platform in industrial automation. This module serves as a critical interface between field devices—such as limit switches, proximity sensors, and emergency stop buttons—and the PLC, converting their on/off signals into digital data that the PLC can process. It enables real-time monitoring of equipment status, making it essential for ensuring the efficiency and safety of automated processes.
As part of the IC694 Series, the GE IC694MDL660 integrates seamlessly with RX3i backplanes like the IC694CHS790 and works with CPUs such as the IC694CPU331. It fits into any I/O slot of the backplane, drawing power through the rack and communicating with the CPU via the backplane bus. The IC694MDL660 accepts 24 V DC input signals, with each channel capable of detecting dry contact closures or voltage signals from standard industrial sensors. This broad compatibility allows it to integrate with a wide range of devices commonly used in factories and processing facilities.
Built to withstand harsh industrial conditions, the GE IC694MDL660 operates in temperatures from 0°C to 60°C and humidity up to 95% (non-condensing). It features channel-to-backplane isolation (250 V AC) to protect against electrical noise and ground loops, ensuring reliable operation even in environments with large motors or high-voltage equipment. Though it is a legacy model, the GE IC694MDL660 remains vital for maintaining older RX3i systems, allowing businesses to extend the life of their automation infrastructure without costly full upgrades.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IC694MDL660 |
| Manufacturer | GE |
| Product Type | 32-Channel Digital Input Module (RX3i PACSystems) |
| Input Voltage | 24 V DC (18–30 V DC range) |
| Input Type | Dry contact or voltage (sinking/sourcing) |
| Number of Channels | 32 (group-isolated, 8 channels per group) |
| Isolation | 250 V AC (channel group to backplane) |
| Physical Dimensions | 136 mm (L) × 35 mm (W) × 133 mm (D) |
| Weight | 0.5 kg |
| Operating Temperature | 0°C to 60°C |
| Humidity Tolerance | 5%–95% (non-condensing) |
| Power Consumption | 40 mA @ +5 V DC (backplane); 15 mA @ +24 V DC (external) |
| Mounting Type | RX3i backplane mount (any I/O slot) |
IC694MDL660
Related Products
- GE IC694CHS790: A 9-slot backplane rack where the IC694MDL660 is installed. It provides mechanical support and electrical connections for the module and other RX3i components.
- GE IC694CPU331: A high-performance CPU for RX3i systems. It processes digital input data from the IC694MDL660 to execute control logic in industrial processes.
- GE IC694MDL730: A 16-channel digital output module. It works with the IC694MDL660 to form a complete I/O system, where input signals from the IC694MDL660 trigger output actions (e.g., activating motors).
- GE IC694ALG220A: An analog input module. It complements the IC694MDL660 in hybrid systems needing both digital and analog signal processing (e.g., monitoring temperature and limit switches).
- GE IC694BEM331: A Genius bus interface module. It connects the IC694MDL660 to a Genius network, allowing input data to be shared with HMIs or other PLCs.
- GE IC694PWR330: A power supply module. It provides the 24 V DC needed by the IC694MDL660 and other 24 V devices in the system.
- GE IC694MDL632: A 16-channel digital input module. It is a smaller alternative to the IC694MDL660 for systems requiring fewer input channels.
Main features and advantages
High channel density: The IC694MDL660 offers 32 input channels, allowing it to monitor twice as many sensors as 16-channel modules with a single slot in the backplane. This reduces the number of modules needed, saving space in control cabinets and simplifying wiring. For example, it can monitor 32 proximity sensors on an automotive assembly line, tracking the position of parts at every station.
24 V DC compatibility: The module accepts 24 V DC signals, the standard voltage for most industrial sensors. This means it can connect directly to photoelectric sensors, limit switches, and emergency stops without additional adapters, reducing hardware costs and setup time.
Group isolation: The IC694MDL660 features 8-channel group isolation (250 V AC), protecting against electrical noise and ground loops. This is critical in environments with large motors or welding equipment, where voltage spikes can disrupt signal detection. Isolation ensures that noise in one group of channels does not affect others, maintaining reliable operation.
Tough industrial design: The module operates in temperatures from 0°C to 60°C and resists humidity and dust. This durability makes it suitable for harsh settings like food processing plants (with washdowns) or outdoor installations (exposed to weather), ensuring consistent performance in challenging conditions.
Easy integration: The IC694MDL660 fits into any I/O slot of RX3i backplanes, requiring no special tools for installation. Its terminal block is clearly labeled, making wiring straightforward—each channel corresponds to a specific terminal, simplifying troubleshooting. It communicates with the PLC via the backplane bus, so no extra programming is needed to recognize it.
Legacy system support: The IC694MDL660 is fully compatible with older RX3i systems, allowing businesses to keep using their existing hardware. This avoids the need to replace entire systems, saving money and minimizing downtime during upgrades.
Installation and maintenance
Pre-installation preparations: Verify that the IC694MDL660 is compatible with your RX3i backplane (e.g., IC694CHS790) and CPU (e.g., IC694CPU331). Ensure there is an empty I/O slot. Power off the system and disconnect all power sources. Align the module with the slot and push firmly until it clicks into place. Connect the 24 V DC power supply to the backplane’s terminal block. Wire sensors to the module’s terminal block, matching each sensor to a channel (positive to signal terminal, negative to common terminal).
Maintenance suggestions: Inspect the IC694MDL660 monthly for loose wires or dust. Tighten terminal screws to ensure good contact—loose connections can cause false signals. Wipe dust from the module’s surface with a dry cloth to prevent overheating. Check channel LEDs: a lit LED indicates a detected signal, helping identify faulty sensors. If a channel fails, test the sensor first; if the sensor works, replace the module. Store a spare IC694MDL660 in a dry, cool area (10–30°C) to replace quickly if needed, minimizing downtime.
IC694MDL660
Application fields
The GE IC694MDL660 is widely used in industries requiring extensive sensor monitoring:
- Automotive manufacturing: In car plants, the module monitors 32 limit switches and proximity sensors on a robotic welding line. It sends data to the PLC, which ensures robots only weld when parts are correctly positioned, preventing defects.
- Material handling: In warehouses, the IC694MDL660 tracks 32 conveyor sensors, detecting jams or empty sections. The PLC uses this data to adjust speeds or redirect products, keeping goods moving efficiently.
- Food and beverage processing: In bottling facilities, it monitors 32 photoelectric sensors that detect bottle presence. The PLC triggers filling machines only when bottles are in place, reducing spillage and waste.
- Packaging: In carton packaging lines, the module tracks 32 sensors checking for proper sealing, label alignment, and carton presence. It alerts the PLC to stop the line if issues are found, ensuring product quality.
In all these applications, the IC694MDL660’s high channel count and reliability make it a key component in maintaining consistent, efficient operations.
IC694MDL660
Product guarantee
Our company offers a one-year quality warranty service for the IC694MDL660, covering hardware malfunctions not caused by human factors. During the warranty period, if the product shows abnormal performance or functional failure, we will provide replacement services. In addition, for discontinued models or urgent demands, relying on our global supply chain network, we can quickly respond to customers’ procurement needs for scarce spare parts, and provide reliable services to support the continuous and stable operation of industrial systems.
Our company is a leading enterprise in the industrial control industry, established in 2007, has been 17 years. We are an import and export trade distribution company, mainly selling major brands of industrial control parts, there are many unpopular discontinued models, with a large stock. Our company has the advantage of supply channels, a large number of spot, to meet the needs of customers anxious to find spare parts. Our main PLC module, DCS card, ESD system card, vibration monitoring system card, turbine control system module, gas generator spare parts, instruments and other products distribution trade.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
