The ALSTOM 12004-102-01 VPS BOARD VER.C is an interface/IO board module for power generation and critical industrial control. It is commonly used in gas/steam turbines and DCS/PLC (such as GE Mark VIe) systems, responsible for signal conversion, isolation, transformation, and protocol adaptation between field sensors/actuators and controllers. Version VER.C offers superior stability and compatibility. The following is a non-tabular core datasheet for easier reading and archiving.

Basic Identification and Classification

Model/Version: ALSTOM 12004-102-01 VPS BOARD VER.C

Type: Industrial Interface/IO Module (Signal Adapter, IO Expansion, Protocol Adaptation, Electrical Isolation)

Typical Classification: Power Generation Control (Gas/Steam Turbine), DCS/PLC Systems, often used in conjunction with control systems such as GE Mark VIe

Application Areas: Power plants, petrochemicals, oil and gas, and other critical industrial control scenarios, ensuring reliable interaction between the field and the controller

Key Performance and IO Capabilities (Note: Refer to the nameplate and manual; the following are common market specifications)

Digital Inputs: Approximately 32 channels, supporting switch signals, dry/wet contact signals, with debouncing and filtering functions, adaptable to common industrial voltage levels, and supporting electrical isolation to improve anti-interference capabilities

Digital Outputs: Approximately 32 channels, used to drive actuators such as solenoid valves, contactors, and indicator lights, supporting level output or relay output (depending on specific configuration), with overload and short-circuit protection monitoring

Analog Inputs: Approximately 16 **Number of Channels:** Supports -10V to +10V voltage signals and 0 to 20mA/4 to 20mA current signals, suitable for acquiring process variables such as temperature, pressure, and flow. Features high-precision sampling and zero/range calibration.

**Analog Output:** Approximately 8 channels, supporting -10V to +10V voltage output and 0 to 20mA/4 to 20mA current output. Used for controlling analog actuators such as regulating valves and frequency converters. Features output current limiting and fault diagnosis capabilities.

**Communication and Bus:** Supports common industrial protocols such as Industrial Ethernet and Modbus TCP/IP. Adapts to controller backplane buses. Some models feature redundant communication design to meet the high availability requirements of critical systems.

**Power Supply and Environment:** Typical industrial-grade power supply (e.g., 24VDC or backplane power supply, subject to nameplate). Operating temperature range is typically 0℃ to 60℃. Features good electromagnetic compatibility and vibration resistance, suitable for industrial field installation.

**Core Functions and Features:**

**Signal Isolation and Conversion:** Isolation and conversion of field inputs/outputs. Output signals undergo electrical isolation, level conversion, and impedance matching to effectively suppress electromagnetic interference and ground loop interference, ensuring stable signal transmission and system safety.

IO Expansion and Centralized Management: Batch connection of field sensors, limit switches, actuators, and other devices allows for unified signal scanning, data processing, and command issuance, simplifying wiring and maintenance.

Diagnostics and Status Monitoring: Onboard LED indicators or reporting of operating, communication, and fault status via a host computer support self-testing and fault logging facilitates rapid location of issues such as loose wiring, channel faults, and communication interruptions.

Programmability and Adaptability: Supports channel configuration, filter parameter setting, and address allocation via host computer software, adapting to different field devices and control logic, and compatible with mainstream industrial control systems.

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