IS220PAICH1B GE Mark VIe Analog In/Out Basic Module

Description

Product Model: GE IS220PAICH1B
Product Brand: GE (General Electric)
Product Series: Mark VIe / Mark VIeS (Analog I/O Pack: PAIC)

Product Features:
• Combined analog input and output I/O pack, designed for the Mark VIe turbine control environment.
• Supports configurable analog inputs: Channels 1‑8: ±5 V, ±10 V, or 4‑20 mA; Channels 9‑10: ±1 mA or 4‑20 mA; plus two 0‑20 mA outputs.
• Dual‑Ethernet I/O pack interface (supports up to two network connections), high reliability in turbine/generator control systems.
• Designed for industrial/hazardous‑location use (UL E207685; models support ATEX Zone 2 certification) with ambient temperature range –40 °C to 60 °C.

Technical Features & Benefits

Delving into specifics:

• The IS220PAICH1B supports analog inputs 1‑8 configurable for ±5 V, ±10 V or 4‑20 mA; inputs 9‑10 configurable for ±1 mA or 4‑20 mA. The terminal board provides the burden resistor for current loops (250 Ω for 4‑20 mA to 5 V signal).
• Two analog outputs: 0‑20 mA with ~18 V compliance, capable of simplex or TMR (triple modular redundancy) mode depending on system architecture.
• Input filtering: For voltage signals a low‑pass filter pole at 75.15 Hz is built in. That helps suppress high‑frequency noise from switching or fieldbus loads.
• Ethernet I/O pack supports either one or two network connections for redundancy or segregated routing: you can plug into ENET1 and/or ENET2 depending on your topology.
• Designed for industrial/hazardous use: ambient temperature range –40 °F to 158 °F (≈ –40 °C to +70 °C) noted by one supplier. UL certification (E207685) and in some cases ATEX zone 2 certification.

From the benefit side:

• Reduced wiring: Instead of separate input and output modules you have a pack that handles both directions of analog signals.
• Flexibility: Because inputs are configurable you don’t need separate modules for 5 V differential, ±10 V, or current loops—one pack handles all.
• Network redundancy: Dual network ports let you build resilient I/O networks without separate hardware.
• Proven for high‑reliability applications: In power and turbine environments, the Mark VIe platform is well‑understood, with spares, service, and engineering familiarity.

From field experience: I’ve seen plants where analogue drift or sensor connector corrosion caused modules to issue invalid readings; upgrading to a known‑good ISA pack like IS220PAICH1B (and moving to clean sensor wiring) immediately improved control stability and reduced nuisance alarms. Similarly, in one OEM machine retrofit the combine of input & output in one pack saved one slot in the rack, simplified wiring and reduced overall cost.