GE IC200MDD844 VersaMax Discrete Mixed I/O Module
Manufacturer: GE Fanuc
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Part Number: IC200MDD844
Condition：New with Original Package
Product Type: Discrete Mixed I/O Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE IC200MDD844 VersaMax Discrete Mixed I/O Module
Configured for integrated input sensing and output control in VersaMax PLC platforms, the GE Fanuc IC200MDD844 (IC200MDD844 Discrete Mixed Module) provides direct physical/electrical execution. The hardware module processes 16 discrete positive logic inputs and drives 16 discrete sourcing output points directly across a nominal 12/24 VDC voltage range. It routes field switch signals and actuator control currents through an underlying VersaMax I/O carrier, interfacing high-density process field signals directly with the rack backplane controller.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC200MDD844 |
| Brand | GE Fanuc / Emerson |
| Origin | USA |
| Weight | 0.28 kg |
| Dimensions | Standard VersaMax I/O Module Form Factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 70 mA at 5 VDC backplane current draw |
| Total I/O Points | 32 points (16 inputs / 16 outputs) |
| Input Type | 24 VDC Positive Logic (10.2 to 30 VDC operational) |
| Output Type | 24 VDC Positive Logic / Sourcing (0.5 A per point) |
| Response Time | Inputs: 0.5 ms (Filterable to 0, 1.0, or 7.0 ms) |
| Isolation | Group-to-group: 250 VAC continuous (1500 VAC for 1 min) |
| External Supply Voltage | 18 to 30 VDC (24 VDC nominal) |
Backplane Bus Communication Velocity and Firmware Compatibility
The module exchanges 32-point bit arrays with the CPU across the internal rack bus, maintaining backplane bus communication velocity without adding polling overhead during rapid signal toggling. Internal logic hardware cross-checks channel state registers against host firmware flash compatibility parameters upon system startup. Configurable input filter settings (0 ms, 1.0 ms, or 7.0 ms) allow engineers to tune signal propagation speeds to optimize scan execution timing and reject contact bounce noise.
Frequently Asked Questions
Q: Does the module offer individual point-to-point galvanic isolation between input and output channels?
A: No, the module provides group-to-group galvanic isolation rated at 250 VAC continuous between backplane logic and field circuitry, but individual I/O channels share common internal power return paths within their respective groups.
Q: What physical LED indicators assist with field diagnostics and fault identification?
A: The front panel includes individual green status LEDs for all 32 I/O channels, an OK LED for backplane logic state, a FLD PWR LED for field supply verification, and amber overload LEDs to indicate output channel fault states.
Q: Are external surge suppression components required when switching inductive loads?
A: Yes, because individual output channels do not contain built-in inductive clamping diodes, engineers must install external suppression diodes or RC networks directly across inductive field devices like solenoid valves and relay coils.
Field Installation Guidelines
Mount the module onto a compatible VersaMax IC200CHS series I/O carrier anchored to a grounded 35 mm DIN rail. Align the module housing guide pins with the carrier connectors and press firmly until the side locking tabs snap into place. Connect external 24 VDC power conductors to the carrier field power terminals to supply output sourcing currents.
Route field input cables and output actuator leads through structured wiring channels, keeping low-voltage signal wiring separated from high-voltage AC circuits by at least 200 mm. Ensure shield drain wires connect directly to the cabinet earth ground bus at a single entry point. De-energize all field power supplies and backplane racks prior to inserting or removing the module in Class I, Div 2 hazardous environments.