Product Overview

The IS220PAOCH1B is an analog output module used in GE Mark VIe control systems to generate current-loop command signals for industrial control equipment. It provides eight simplex current outputs intended for precise setpoint delivery to actuators, valve positioners, I/P converters, and other devices that accept 0–20 mA control inputs.

This module integrates network connectivity and a direct interface to compatible terminal boards through a multi-pin output connector, supporting cabinet-level installation practices commonly used in Mark VIe distributed control deployments. Built-in monitoring features help confirm channel health and support faster troubleshooting during commissioning and maintenance.

Hardware Parameters

• Brand: GE

• Product Series / Platform: Mark VIe

• Module Category: Analog Output Module / I/O Pack

• Model / Order Number: IS220PAOCH1B

• Output Type: Current outputs (simplex)

• Number of Channels: 8

• Output Range: 0–20 mA

• Output Accuracy: ±0.5% (specified across operating range)

• DAC Resolution: 16-bit digital-to-analog conversion

• Channel Monitoring: Current feedback measurement via 16-bit ADC (per channel)

• Output Control: Mechanical relays with status indication LEDs (enable/disable)

• Thermal Supervision: Internal temperature sensing with alarm capability

• Compliance Voltage: 18 V compliance (current loop drive capability)

• Communications and Interfaces:

• Dual RJ45 Ethernet ports for network connection

• DC-37 output connector for terminal board interface

• Infrared service/diagnostic port and visual status indicators for maintenance support

• Compatible Terminal Boards (as specified):

• TBAOH1C terminal board

• STAO terminal board

• Not compatible with DIN-rail DTAO boards

• Environmental and Installation Data:

• Operating Temperature: -30°C to 65°C

• Condition: Brand New

• Availability: In Stock

• Lifecycle Status: Active

• Country of Origin: USA

• Minimum Order Quantity: 1

• HS Code: 8537101190

• Weight: 0.36 kg

• Dimensions: 8.2 × 12.2 × 6.0 cm

• Redundancy Support (system-dependent):

• Applicable configurations include simplex, dual, and TMR architectures when implemented at the system level

Industrial Applications

• Mark VIe control cabinets requiring 0–20 mA analog command outputs

• Valve positioning and modulating control using current-loop setpoints

• Output reference signals to drives, converters, and industrial actuators

• Power generation control systems including turbine auxiliaries and balance-of-plant loops

• Maintenance replacement for installed Mark VIe I/O packs where channel monitoring and diagnostics are required