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The IS220PSCAH1A is a Serial Communication I/O Pack module designed by GE Fanuc as part of the Mark VIe Distributed Control System (DCS). It serves as a serial interface between the Mark VIe control network and external field devices using RS-232, RS-422, or RS-485 protocols.
This module integrates six configurable serial transceiver channels and dual Ethernet ports to ensure high-speed, reliable communication. Its robust industrial design allows it to operate in demanding environments such as turbine control systems, desalination plants, oil & gas facilities, and compressor stations.
| Parameter | Description |
|---|---|
| Rated Supply Voltage | 24 V DC (nominal) |
| Operating Voltage Range | 20 V DC – 30 V DC |
| Power Consumption | Approx. 0.36 A @ 28 V DC |
| Serial Interfaces | Six configurable transceivers (RS-232 / RS-422 / RS-485) |
| Ethernet Interfaces | Dual RJ-45 connectors for I/O network |
| Dimensions | 29.2 cm × 13.0 cm × 2.7 cm |
| Weight | 0.36 kg |
| Mounting Type | Plug-in module / DIN rail or rack mounting (depending on chassis) |
| Supported Protocols | RS-232, RS-422, RS-485 (half-duplex) |
| Operating Temperature | –10 °C to +50 °C (typical) |
| EMC / Noise Protection | High EMC immunity, low ripple and noise, short-circuit protection |
Note: Dimensions and electrical ratings may vary slightly depending on the module revision (e.g., REV F or REV K).
The IS220PSCAH1A is used in a variety of industrial automation and control systems, including:
Gas and steam turbine control – provides serial connectivity between turbine sensors, actuators, and the Mark VIe control network.
Power generation systems – integrates distributed I/O devices with centralized controllers.
Oil and gas exploration – used in drilling, compression, and refining operations requiring reliable field communication.
Desalination and marine systems – supports communication between controllers and serial sensors or valves in harsh environments.
Manufacturing automation – bridges legacy serial devices with modern Ethernet-based control systems.
High Compatibility: Supports RS-232, RS-422, and RS-485 interfaces for flexible integration with a wide range of field devices.
Modular and Service-Friendly: Hot-swappable design (system dependent) allows easy replacement and maintenance.
Industrial-Grade Reliability: Built with low-noise circuits, ripple suppression, and short-circuit protection for stable performance under tough conditions.
Compact & Lightweight: The 0.36 kg lightweight structure saves cabinet space and simplifies installation.
Robust Networking: Dual Ethernet ports enable redundant connections within the Mark VIe I/O network.
Proven System Integration: As part of the Mark VIe family, it benefits from long-term product support and mature system compatibility.
Brand: GE Fanuc
Series: Mark VIe Distributed I/O Packs (for the Mark VIe / Speedtronic Control System)
Product Type: Serial Communication I/O Pack
| Model | Function | Key Specifications |
|---|---|---|
| IS220PTCCH1A | Thermocouple Input Module – collects temperature signals from sensors. | 8.26 × 12.2 × 6 cm; weight ≈ 0.36 kg |
| IS220PAICH1A | Analog I/O Pack – handles multiple analog sensor inputs. | 15 × 10 × 5 cm; weight ≈ 2 kg |
| IS220PDOAH1A | Discrete Output Pack – controls relays and actuators. | 10 × 5 × 3 cm; weight ≈ 0.34 kg |
| IS220PSVOH1B | Servo Interface I/O Pack – controls servo valve position. | 22.4 × 8.9 × 10 cm; weight ≈ 0.45 kg |
| IS220UCSAH1A | Controller Module – CPU/controller for Mark VIe systems. | 15 × 10 × 5 cm; weight ≈ 0.5 kg |
| Model | Function | Key Specifications |
|---|---|---|
| IS220PAOCH1B | Advanced Control Module – for precision analog control. | 0.36 kg; DC 5 V input |
| IS220PAICH2B | 2nd-gen Analog I/O Module – expanded input range and accuracy. | 12.2 × 8.2 × 6 cm |
| IS220PCLAH1B | Power/Control Distribution Module – provides internal system power distribution. | 8.8 × 22.7 × 17.5 cm; 1.3 kg |
| IS220PPRAH1A | Power Feedback Module – monitors system power distribution health. | 17.3 × 10.9 × 3 cm; 0.7 kg |
| IS220PSVOH1A | Servo Control Pack – provides servo valve control functionality. | Similar size to PSVOH1B; ≈ 0.45 kg |
Q1: What serial protocols are supported by the IS220PSCAH1A?
A1: It supports RS-232, RS-422, and RS-485 half-duplex serial communications, configurable per channel.
Q2: What is the purpose of the dual Ethernet ports?
A2: The dual RJ-45 ports connect the module to the I/O network, allowing redundant or daisy-chain connections to controllers.
Q3: What power supply does the module require?
A3: 24 V DC nominal, with an operating range of 20 V DC to 30 V DC.
Q4: What is the module’s weight and size?
A4: Approx. 0.36 kg; dimensions 29.2 × 13.0 × 2.7 cm.
Q5: Can the module be hot-swapped?
A5: While the design supports easy replacement, actual hot-swap capability depends on the system configuration and backplane power management.
Q6: What is the operating temperature range?
A6: Typically from –10 °C to +50 °C.
Q7: How many serial channels does the module provide?
A7: Six fully configurable channels for serial data transmission and reception.
Q8: In what industries is this module typically used?
A8: Power generation, oil & gas, desalination, marine, and general industrial automation.
Q9: What protections are included?
A9: Built-in short-circuit protection, low-noise design, and high EMC immunity.
Q10: What system family does this module belong to?
A10: It is part of the GE Fanuc Mark VIe Distributed I/O family (Speedtronic Mark VIe).
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