IC200MDD843 GE VersaMax Mixed I/O Module – 10 Input/6 Relay Output

Engineering & System Integration Profile

The IC200MDD843 by GE Fanuc (now Emerson Automation) serves as a compact, versatile I/O solution for the VersaMax distributed control platform. By integrating 10 positive-logic/sourcing inputs and 6 high-capacity relay outputs into a single module, it provides a high-density footprint ideal for space-constrained control cabinets. The module leverages the VersaMax backplane for primary logic power while supporting external secondary power sources to drive heavy-duty field instrumentation.

Technical Specification Matrix

• Module Architecture: Discrete Mixed I/O (16 total points)
• Input Logic: 10 Sourcing / Positive Logic inputs
• Output Configuration: 6 Relay outputs with silver alloy contacts
• Relay Capacity: Up to 8A per output group
• Operating Frequency: 20 cycles per minute (inductive load)
• Response Latency: 10ms (max)
• Power Draw: 190mA max from backplane (load-dependent)
• Form Factor: 1.956 x 2.63 x 4.3 inches (excluding carrier/connectors)
• Wiring Interface: 18 Type-A terminals + Type-B shorting bar terminal

Global PLC Spare HUB's Insight

The IC200MDD843 is an ideal choice for localized machine control where space is at a premium. Our technical team highlights that while the module lacks built-in channel isolation and internal fuses, its robust relay design—utilizing fixed coils and moving armature technology—ensures reliable mechanical switching. It is best deployed in stable environments where primary isolation is handled at the distribution terminal level rather than the I/O module itself.

Application Deployment Scenarios

• Compact Machinery: Ideal for small-scale packaging or material handling equipment.
• Hybrid Systems: Interfacing discrete sensors (inputs) and small motor starters or contactors (relay outputs).
• Distributed I/O: Efficiently populating remote VersaMax racks in secondary control zones.
• Retrofit Projects: Replacing legacy I/O clusters to optimize cabinet real estate.

Logistics & Quality Assurance

• Delivery: Rapid dispatch within 24-48 hours via FedEx, UPS, or DHL.
• Warranty: 12-month quality guarantee covering manufacturing defects.

Expert Frequently Asked Questions

Q: Since the module lacks internal fuses, how should I protect my field outputs?
A: You must install external circuit protection (such as glass fuses or circuit breakers) at the terminal block level to protect the relay contacts from overcurrent conditions.

Q: How do I handle power requirements for the 6 output relays?
A: While the module draws logic power from the backplane, relay loads must be powered by a dedicated secondary field supply connected to the appropriate terminal blocks.

Q: Does the "20 cycles per minute" limit apply to all load types?
A: That limit is specifically for inductive loads to prevent contact arcing; purely resistive loads may allow for slightly higher frequency, but stay within the manufacturer's thermal constraints.

Q: Can I mix this module with different VersaMax series types on the same backplane?
A: Yes, VersaMax modules are modular; ensure your backplane configuration is updated in the PLC software to recognize the mixed I/O profile.

Q: What is the benefit of the Type-B shorting bar terminal?
A: It provides a convenient point for commoning field power or grounds, simplifying the wiring layout when grouping multiple output loads.

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