The Foxboro H90C9AA0117S is an intelligent I/O module in the Foxboro (now Emerson) product family that is commonly used for data acquisition, processing and communication in process automation systems. It is A high-performance module for industrial automation applications and is particularly suitable for use with Foxboro I/A systems, including DCS.
The following describes the parameters and functions of the Foxboro H90C9AA0117S module:

Basic information

Model: H90C9AA0117S
Series: Foxboro I/A system intelligent I/O module
Function: Used for data acquisition, control and process monitoring, support a variety of input and output signal format conversion and processing.

Hardware parameter

Input type:

Analog input: Support 4-20mA, 0-10V or other process signal input.
Digital input/output: Support switch quantity (such as switch status monitoring).
Frequency input: Support process frequency or pulse signal input (e.g. flow meter signal).

Output type:

Analog output: Support 4-20mA, 0-10V output, can be used to control the process.
Digital output: Support relay output for device switch control.
Frequency output: Provides frequency or pulse output.

Communication interface:

Usually HART protocol or Modbus RTU/TCP communication protocol.
Support RS-485 communication interface for remote control and data exchange.

Power requirements:

Input voltage: 24V DC
Power consumption: Typically 3W to 5W, may vary depending on workload and configuration.

Installation:

Modules are usually designed to be DIN rail mounted for easy system integration.
Dimensions: Approximately 144 mm (height) x 100 mm (width) x 25 mm (depth).

Functional characteristics

Data acquisition and processing:

It supports various types of sensor data acquisition and is suitable for real-time monitoring in industrial process control.
The built-in processor can preprocess, analyze and convert data to provide standardized signal output for the superior system.
Multi-protocol support:
Support for communication protocols commonly used in industry such as HART (for communicating with intelligent field devices), Modbus RTU/TCP, and Profibus DP provides flexibility for system integration.

Signal isolation:

Provides electrical isolation of input and output signals to protect the system from electrical noise and interference.

Diagnosis and fault detection:

Provides intelligent diagnostic functions to monitor the operating status of modules and systems.
Support self-diagnosis function, can display alarm information, help operators respond to system failures in time.

System integration:

It can be integrated through existing Foxboro I/A systems and can communicate with other process control systems, such as DCS, via standard protocols.

Module redundancy:

Redundant modules can be configured in the control system to ensure high availability and continuous operation of the system.