GE ST-3218 Analog Input Module

Product Description

The GE ST-3218 is a high-performance 8-channel analog input module designed for industrial automation systems. It captures 4–20 mA current signals from transmitters and sensors, converting them into precise digital values for reliable control system processing. Moreover, its 12-bit resolution ensures accurate measurement across varying operational conditions, while its 4 ms per channel update rate delivers fast, real-time monitoring.

This module integrates seamlessly into the RSTi Slice I/O system, offering DIN rail compatibility and compact dimensions for space-efficient installation. In addition, a green/red LED provides clear Fn-Bus status indication, supporting easier diagnostics and system monitoring. The ST-3218 is optimized for applications requiring precise analog data acquisition, including process control, energy management, and manufacturing automation.

Engineers benefit from its low current consumption of 60 mA at 5 VDC, making it energy-efficient without compromising performance. Therefore, the module ensures consistent operation in critical industrial environments while maintaining system reliability.

Key Features

• 8 Analog Inputs: Supports 4–20 mA current signals from field devices.

• 12-Bit Resolution: Guarantees accurate digital conversion of analog signals.

• Fast Update Rate: 4 milliseconds per channel for real-time control.

• Compact and Durable: 12 mm × 99 mm × 70 mm, 70 g weight, DIN rail compatible.

• Status Indicators: Green/red LED displays Fn-Bus communication status.

• Energy Efficient: 60 mA current consumption at 5 VDC.

• Seamless Integration: Designed for RSTi Slice I/O industrial systems.

Technical Specifications

• Model: ST-3218

• Series: GE Emerson RSTi Slice I/O

• Type: Analog Input Module

• Number of Inputs: 8 channels

• Input Signal Type: 4–20 mA

• Resolution: 12-bit

• Conversion Speed: 4 ms per channel

• Data Format: 16-bit integer

• Input Type: Single-ended

• Input Impedance: 120 Ohms

• Current Consumption: 60 mA @ 5 VDC

• Module Dimensions: 12 mm × 99 mm × 70 mm

• Weight: 0.1 kg

• System Indicators: 1 green/red LED for Fn-Bus status

• Mounting: DIN rail compatible

Typical Applications

• Real-time process monitoring and control in industrial automation systems.

• Integration with sensors and transmitters for energy management systems.

• Manufacturing automation requiring precise analog signal acquisition.

• Process industries, including chemical, oil & gas, and power plants.

FAQ

Q1: What input signals does the ST-3218 support?
A1: It supports 8 analog channels with 4–20 mA current signals.

Q2: Can this module be mounted on standard DIN rails?
A2: Yes, the module is DIN rail compatible for easy installation.

Q3: What is the resolution of the ST-3218?
A3: The module provides 12-bit resolution for accurate digital conversion.

Q4: How fast is the data conversion?
A4: Each channel updates in 4 milliseconds, allowing real-time monitoring.

Q5: Is the module energy efficient?
A5: Yes, it consumes only 60 mA at 5 VDC, reducing overall system power.