The GE IC200MDD845, also cataloged as the IC200MDD845 Combination Discrete Input and Output Module, operates as a dedicated hardware component for discrete signal conditioning and load switching within VersaMax I/O platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC200MDD845 |
| Brand | GE / Fanuc (Emerson) |
| Origin | USA |
| Weight | 0.63 lbs (0.28 kg) |
| Dimensions | Standard VersaMax Carrier Module Dimensions |
| Operating Temp | Industrial Enclosure Operating Limits |
| Power Consumption | 270 mA maximum from Backplane |
| Product Line | VersaMax I/O |
| Total Channel Count | 24 Points (16 Discrete Inputs / 8 Relay Outputs) |
| Input Nominal Voltage | 24 VDC (18 to 30 VDC range) |
| Input Signal Current | 2.0 to 5.5 mA (On-state), 0 to 0.5 mA (Off-state) |
| Output Contact Type | 8 Form A (Normally Open) Contacts |
| Output Voltage Range | 0 to 125 VDC, 0 to 265 VAC (47 to 63 Hz) |
| Output Rating (Resistive) | 2.0 A at 5-265 VAC, 2.0 A at 5-30 VDC, 0.2 A at 31-125 VDC |
| Isolation | Channel-to-channel isolation on outputs |
| Carrier Base Required | IC200CHS Series Carrier Base |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The IC200MDD845 manages high-speed discrete data exchange across the VersaMax carrier backplane, preserving deterministic backplane bus communication velocity during concurrent 24-point update cycles. Onboard memory registers maintain parameter synchronization with the primary VersaMax CPU or network interface unit, validating module firmware flash compatibility to execute real-time discrete input scanning and relay actuation without bus degradation.
Frequently Asked Questions
Q: What are the backplane current drawing limits for the IC200MDD845?
A: The module draws a maximum current of 270 mA from the backplane 5 VDC supply rail, depending on the total number of concurrently active input and output points.
Q: Are the Form A relay output channels on the IC200MDD845 fused internally?
A: No, the output channels are individually isolated Form A relay contacts but do not include internal fusing or snubber circuits; external circuit protection must be provided.
Q: What carrier base is required to mount the IC200MDD845 in a VersaMax I/O rack?
A: The module requires an IC200CHS series carrier base to establish backplane connection and facilitate field wiring terminations.
Field Installation Guidelines
- Disconnect backplane power to the I/O carrier base and isolate external field voltage sources prior to installing or removing the module.
- Put on an ESD grounding wrist strap connected to an unpainted metal surface on the enclosure frame to prevent static damage.
- Align the module card edge connectors with the IC200CHS carrier base guide slots and push firmly until the module latches securely.
- Ensure 24 VDC positive logic input wiring and high-voltage output load connections maintain separate conduit pathways to prevent inductive cross-talk.
- Apply external fusing or surge suppression devices on each isolated Form A relay output channel to protect field contacts against inductive load transients.
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