Description
🔹 Product Description
The General Electric IS420PUAAH1A is a 16-channel Universal Analog I/O Pack designed for GE Mark VIe control systems. The module provides individually configurable simplex I/O channels, allowing different field signal types to be handled within one compact I/O pack. Supported signal functions include thermocouple, RTD, voltage input, 4–20 mA current input, 0–20 mA current output, pulse accumulator, and digital input functions. The module communicates through the Mark VIe IONet architecture and supports automatic reconfiguration and hot-swappable replacement. GE documentation identifies the PUAA family as a universal analog I/O platform with 16 programmable channels.
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | General Electric (GE) |
| Model | IS420PUAAH1A |
| Series | Mark VIe / Mark VIeS |
| Product Name | 16-Channel Universal Analog I/O Pack |
| Place of Manufacture | USA |
| Product Status | New / Surplus |
| Dimensions | Approx. 8.2 × 12.2 × 6 cm |
| Weight | Approx. 0.36 kg |
| Original Country | United States |
| Power / Consumption | 28 VDC control power; approx. 8.1 W quiescent, depending on configuration |
| Discontinued | Legacy Mark VIe hardware; verify current system compatibility |
⚙️ Key Features
• 16 individually configurable simplex channels
• Thermocouple and RTD input support
• Voltage input and 4–20 mA current input support
• 0–20 mA current output support
• Pulse accumulator and digital input functions
• IONet Ethernet communication
• Approximately 10 ms frame rate and 5 ms normal scan time
• Measurement accuracy better than 0.1% within the specified operating range
• Supports automatic reconfiguration
• Supports hot-swappable replacement
• Operating temperature from -40 to +70°C
• 5–95% relative humidity, non-condensing
• Compatible with ControlST V07.02.00C or later according to available technical specifications
❓ Common Questions & Answers
Q: What is the IS420PUAAH1A?
A: It is a GE Mark VIe Universal Analog I/O Pack with 16 configurable simplex channels.
Q: How many channels does it provide?
A: The module provides 16 individually configurable analog I/O channels.
Q: What signal types are supported?
A: Depending on configuration, channels can support thermocouples, RTDs, voltage inputs, 4–20 mA inputs, 0–20 mA outputs, pulse accumulation, and certain digital input functions.
Q: Which control platform uses this module?
A: It is primarily associated with the GE Mark VIe control platform and is also identified with Mark VIeS applications.
Q: Does the module support hot swapping?
A: Available technical references indicate that hot-swapped replacement is supported.
Q: Does it support automatic reconfiguration?
A: Yes. Auto-reconfiguration is supported when the associated Mark VIe control architecture and software are configured accordingly.
Q: What software version is required?
A: Technical specifications identify ControlST V07.02.00C or later for the IS420PUAAH1A.
Q: What is the operating temperature range?
A: The specified operating range is approximately -40 to +70°C (-40 to +158°F), with 5–95% non-condensing relative humidity.
Q: Is this module suitable as a replacement for another PUAA module?
A: Replacement should be verified against the complete part number, firmware, ControlST version, terminal-board arrangement, I/O configuration, and existing Mark VIe system architecture before installation.
⭐ Recommended GE Models
- IS420PDIH1A — Mark VIe Discrete Input I/O Pack
- IS420PDOAH1A — Mark VIe Discrete Output I/O Pack
- IS420PTURH1A — Mark VIe Turbine I/O Pack
- IS420PTCCH1A — Mark VIe Thermocouple I/O Pack
- IS420PRTDH1A — Mark VIe RTD Input I/O Pack
- IS420PAICH1A — Mark VIe Analog Input I/O Pack
- IS420PICHH1A — Mark VIe Current Input I/O Pack
- IS420PPDAH1A — Mark VIe Power Distribution I/O Pack
- IS420PSCAH1A — Mark VIe Serial Communication I/O Pack
- IS420PSCHH1A — Mark VIe Serial Communication Module
- IS420PCNOH1A — Mark VIe CANopen Communication Module
- IS420PPRFH1A — Mark VIe PROFIBUS Communication Module
- IS420PUAAH1B — Universal Analog I/O Pack
- IS420UCSBH4A — Mark VIe Universal Control System Module
- IS420YAICS1B — Mark VIe Analog I/O Terminal Board



