The GE Fanuc IC200MDD843, also cataloged as the IC200MDD843 Mixed Module, operates as a dedicated hardware component for combined discrete signal acquisition and relay-based control output within VersaMax platform networks.
Hardware Specifications
| Parameter | Specification |
| Model | IC200MDD843 |
| Brand | GE Fanuc |
| Origin | Subject to factory batch |
| Weight | 0.48 lbs |
| Dimensions | Standard VersaMax module footprint |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | Logic side bus load dependent |
| Inputs | 10, 24 VDC, positive logic |
| Outputs | 6, relay, 2 A |
| Output Ratings | 120/240 VAC, 5/24/125 VDC |
Backplane Bus Communication and Firmware Compatibility
The module facilitates signal processing via the VersaMax backplane, utilizing high-speed bus arbitration to maintain deterministic performance. The unit supports I/O density scaling by consolidating both input and output functions into a single module slot, reducing the total hardware footprint. Firmware flash compatibility is managed through the host CPU, with the module acting as a transparent interface layer. Bus communication velocity is maintained across the rack, ensuring synchronized execution of control logic and field device actuation.
Frequently Asked Questions
Q: Are the relay outputs isolated from each other?
A: The relay outputs provide physical isolation between the load circuits; however, users must verify the specific terminal wiring to ensure proper grouping and protection against cross-circuit interference.
Q: Can this module handle inductive loads on the relay outputs?
A: Yes, the relay outputs are rated for 2 A; however, when switching inductive loads, external suppression such as RC networks or flyback diodes must be installed to prevent contact pitting and extend the operational lifespan of the internal relays.
Field Installation Guidelines
- Mount the module securely onto a standard 35 mm DIN rail or compatible VersaMax carrier base.
- Ensure all field power is removed before terminating signal or load wiring to the module terminal blocks.
- Route input signal wires and output load cables in separate conduits to minimize crosstalk and induced electrical noise.
- Verify that the 24 VDC input logic polarity matches the sourcing/positive logic configuration of the field devices.
- Check that load current does not exceed the 2 A per point rating of the relay outputs, utilizing external fusing to protect the internal contacts.
- Observe the front-panel status LEDs during system commissioning to confirm proper input activation and output relay state switching.
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