The General Electric IC697ALG440 is a 16-channel current input expander module designed for the Series 90-70 Programmable Logic Controller (PLC) platform. This module is engineered to extend the analog input capabilities of the system, allowing for the integration of 4-20 mA current loop signals. It must be utilized in conjunction with a compatible base converter module to form a complete analog input subsystem.

Features

• Provides 16 channels of 4-20 mA current loop input.
• Supports system expansion up to a maximum of 120 input channels when used with base converter and voltage expander modules.
• Converts analog signals into digital data represented in 2's complement format.
• Includes integrated status indicator LEDs and module health diagnostic facilities.
• Designed for seamless integration with the GE Series 90-70 VME backplane.

Applications

• Process Monitoring: Captures and processes data from temperature, pressure, and flow sensors.
• Manufacturing: Supports precise data acquisition for CNC and robotic control systems.
• Water and Power Facilities: Manages monitoring of flow, pressure, and chemical levels.
• Industrial Automation: Suitable for complex signal processing in large-scale industrial and naval automation environments.

Technical Specifications

Installation Guidelines

• Ensure the module is installed in the same rack as the associated base converter module, ideally in an adjacent slot.
• Use terminals 36 and 38 on the base converter module for analog expansion signal connections.
• Use terminals 37 and 39 for the differential data bus serial communication.
• Verify signal polarity before completing wiring connections.
• Shielded cabling is optional; if used, connect the shield ground to terminal 35.
• Always power down the rack before inserting or removing modules to prevent electrical damage.

FAQ

What is the primary function of the IC697ALG440?

The IC697ALG440 is a 16-channel analog input expander module that allows the Series 90-70 PLC to accept 4-20 mA current loop signals by expanding the capacity of a base converter module.

Can this module be used independently?

No, the IC697ALG440 must be used with a base converter module (such as the IC697ALG230) to function as part of an analog input subsystem.

What is the maximum number of inputs supported in this subsystem?

The complete subsystem, using a mix of base converter and expander modules, can support up to 120 input channels.