Understanding the IC200MDD840 Discrete I/O Module
When a manufacturing line requires reliable discrete input and output control, the GE IC200MDD840 offers a practical solution. This 32-point combination module from the VersaMax I/O series integrates 20 discrete inputs and 12 relay outputs in a single unit. It is designed for applications that need both sensing and switching capabilities without occupying multiple module slots.
The IC200MDD840 is part of the VersaMax product family, originally by GE Intelligent Platforms and now under Emerson Automation. It draws power directly from the backplane, with a maximum current consumption of 375 mA. This module does not include internal fuses, so external protection may be necessary depending on the application.
Technical Specifications and Performance
The IC200MDD840 features 20 positive-logic/sourcing input channels that accept a nominal 24 VDC signal, with a range of 0-30 VDC. The on-state current for inputs is 2.0 to 5.5 mA, while the off-state current is 0 to 0.5 mA. Input channels are arranged in two groups of ten, each with configurable filter times of 0 ms, 1.0 ms, or 0.7 ms (default 1.0 ms) to reduce noise.
For outputs, the module provides 12 Form A relay contacts arranged in two groups of six. Each output is rated for 2.0 A at 5 to 265 VAC (resistive) and 2.0 A at 5 to 30 VDC (resistive), with a minimum load of 10 mA per point. The output voltage range spans 0-125 VDC and 0-265 VAC (47-63 Hz). The module dimensions are 110 mm x 66.8 mm x 50 mm.
Comparison with Similar I/O Modules
Compared to pure input or output modules, the IC200MDD840 combines both functions, saving rack space and simplifying wiring. For instance, a typical 32-point input module offers only sensing, while a 32-point output module only switching. The IC200MDD840 provides 20 inputs and 12 outputs, making it suitable for applications requiring mixed I/O in a single slot.
Within the VersaMax series, other modules may offer different channel counts or voltage ranges. The IC200MDD840 stands out with its relay outputs, which handle both AC and DC loads up to 2.0 A, and its configurable input filters for noisy environments.
Applications in Modern Manufacturing
The IC200MDD840 is well-suited for packaging lines, material handling systems, and assembly stations where discrete sensors and actuators are common. For example, in a packaging line, the inputs can monitor product presence via proximity sensors, while the relay outputs control pneumatic cylinders or conveyor motors.
In a typical automotive parts assembly application, the module can manage 20 sensor inputs for part detection and 12 relay outputs for activating solenoids or indicators. The configurable input filters help prevent false triggers from electrical noise common in factory environments.
Integration with Control Systems
The IC200MDD840 operates as part of a VersaMax I/O system, communicating with a PLC through a network interface unit (NIU) or a CPU. It does not support channel-to-channel isolation, so grouping outputs by common is important. The module uses the backplane for power and data exchange, requiring an external power supply for output loads.
For integration, the module is mounted on a carrier and rack, with dimensions that exclude carrier height. It is compatible with VersaMax controllers and other GE Fanuc systems that support the IC200 bulletin series.
Frequently Asked Questions About the IC200MDD840
What is the input voltage range for the IC200MDD840?
The input voltage range is 0-30 VDC, with a nominal voltage of 24 VDC. The on-state voltage is +15 to +30 VDC, and the off-state voltage is 0 to 0.5 mA.
How many relay outputs does the IC200MDD840 have?
The module has 12 Form A relay outputs, arranged in two groups of six. Each group can sustain up to 8.0 A total, with individual contacts rated for 2.0 A maximum.
Does the IC200MDD840 require an external power supply?
Yes, while the module draws its control power from the backplane (375 mA maximum), all output loads require an external power source. The output voltage can be 0-125 VDC or 0-265 VAC.
Why Choose AutoDCSTech for Your IC200MDD840
AutoDCSTech offers genuine GE IC200MDD840 modules with verified specifications. Our team understands industrial automation needs and can help you select the right components. We stock a range of VersaMax I/O modules to support your system requirements.
Please verify current lifecycle status and availability with AutoDCSTech before ordering. Contact us for pricing and lead times.
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