The GE IS220PDOAH1BC, also cataloged as the IS220PDOA Discrete Output Module, operates as a dedicated hardware component for converting digital control logic into binary physical outputs within GE Mark VIe and Mark VIeS platforms. The module interfaces 16 channel-isolated discrete outputs operating at 24-28 VDC nominal voltage to drive solenoids, motor starters, and actuator valve coils with under 10 ms signal response times.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS220PDOAH1BC (IS220PDOA) |
| Brand | GE (General Electric) |
| Origin | USA |
| Weight | 1.42 kg |
| Dimensions | 263 x 58 x 28 mm |
| Operating Temp | -40 to 70 deg C (-40 to 158 deg F) |
| Power Consumption | Dual 28 VDC redundant inputs with automatic failover |
| Output Channels | 16 isolated discrete outputs |
| Output Voltage | 24-28 VDC (nominal) |
| Output Current | 1 A per channel (resistive load) |
| Signal Isolation | 500 VDC (channel-to-channel and to ground) |
| Response Time | < 10 ms |
| Relative Humidity | 5-95% non-condensing |
| Series Compatibility | GE Mark VIe / Mark VIeS Control Systems |
Deterministic Network Backplane Bus Velocity and I/O Density Scaling
The IS220PDOAH1BC communicates over high-speed backplane bus communication velocity pathways to preserve time-critical control loops in Mark VIe/VIeS architectures. Featuring high I/O density scaling across a 16-channel array with 500 VDC galvanic isolation, the module eliminates crosstalk and transient propagation between output lines. Onboard firmware flash compatibility ensures synchronized parameter configuration upon hot-swapping, allowing immediate operational recovery without manual firmware loading or backplane interruptions.
Frequently Asked Questions
Q: Does the IS220PDOAH1BC support live hot-swapping during active system operation?
A: Yes, the module supports online hot-swapping. When replacing an active unit, internal dual 28 VDC power inputs execute automatic failover to prevent voltage drops or output state drops on the redundant backplane bus.
Q: What are the isolation and current limit parameters per channel on the IS220PDOAH1BC?
A: Each individual channel supports up to 1 A resistive load continuous current at 24-28 VDC and features 500 VDC signal isolation both channel-to-channel and to earth ground.
Q: What mounting form factor is required for physical installation?
A: The module utilizes standard rack-mounting dimensions (263 mm x 58 mm x 28 mm) designed to align directly into designated Mark VIe and Mark VIeS I/O rack slots.
Field Installation Guidelines
- Verify that the I/O slot in the Mark VIe/VIeS rack is clean and free from physical obstructions before module insertion.
- Ensure ESD grounding wrist straps are attached to a bare metal chassis point to protect internal output driver electronics.
- Slide the IS220PDOAH1BC into the rack guide rails, pushing evenly until backplane connectors seat completely into the baseboard.
- Tighten top and bottom retaining screws to 0.8 Nm (7 in-lbs) to maintain mechanical connection stability and chassis grounding continuity.
- Connect output field wiring to the terminal block, ensuring discrete actuator signal lines maintain a minimum 300 mm clearance from AC power cables.
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