GE IS200STAOH2AAA Analog Output Terminal Board

Configured for multi-channel loop actuation and field element positioning in Mark VIe control systems, the GE IS200STAOH2AAA (IS200STAOH2AAA Analog Output Terminal Board) provides direct physical/electrical execution. Paired with the IS230SNAOH2A I/O pack, the assembly converts digital control commands into precise 4-20 mA current or 0-10 V / +/-10 V voltage outputs to adjust control valves, variable speed drives, and process actuators in power and process automation networks.

Hardware Specifications

Backplane Bus Communication & I/O Density Scaling

The terminal board interacts with the IS230SNAOH2A I/O pack via high-density terminal headers, receiving real-time data packets over dual deterministic Ethernet interfaces linked to the controller backplane. Onboard 16-bit D/A conversion circuits deliver signal scaling across all output channels while maintaining fast backplane update rates. The architecture supports both simplex and redundant backplane configurations, allowing automatic channel failover without disrupting loop current continuity or loop execution velocity.

Frequently Asked Questions

Q: How do the terminal board and I/O pack work together during hardware installation?

A: The IS200STAOH2AAA serves as the physical terminal board where field wires land, while the IS230SNAOH2A I/O pack plugs directly onto the board header connectors to perform signal processing, D/A conversion, and network communication with the Mark VIe controller.

Q: Can channels be individually configured for either voltage or current loop outputs?

A: Yes, each output channel can be configured independently via system software to drive standard 4-20 mA current loops or voltage signals ranging from 0-10 V to +/-10 V depending on the connected field device requirements.

Field Installation Guidelines

• Mount the assembly onto standard DIN rails or mounting panels, ensuring proper engagement of the retention clips.
• Connect field signal wiring to the terminal block screws, routing 4-20 mA current and voltage signal cables in separate shielded conduits away from high-voltage AC lines.
• Ensure all cable shield drain wires terminate at a single chassis ground lug on the enclosure backplate to mitigate high-frequency electrical noise.
• Verify 28 VDC nominal power supply rails stay within operating limits before commissioning the connected I/O pack.