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- IC200ALG326H
- Analog Output Module
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- 110 × 66.8 × 50 mm
- 0.19 kg
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Product Overview
The GE IC200ALG326H is a VersaMax Analog Output Module used to send continuously variable control signals from a GE VersaMax PLC to field devices. It sits on the output side of the control system, where PLC-generated values are converted into analog commands for equipment such as control valves, actuators, drives, and other modulating devices.
An analog output differs from a discrete output because the command can represent a range of operating values rather than only an ON or OFF state. A PLC program can calculate an output value according to process conditions and send the corresponding command through the IC200ALG326H.
In a process-control application, the module can be associated with a control loop in which the PLC adjusts an output according to a measured process variable. In machine automation, an analog output can be used when a device needs proportional control rather than simple switching.
For maintenance work, engineers should verify the module model, output channel assignment, connected field device, wiring, signal configuration, and PLC scaling before replacement. An incorrect output can originate from the PLC program, scaling configuration, field wiring, receiving device, or output channel.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Model | IC200ALG326H |
| Product Family | VersaMax |
| Product Type | Analog Output Module |
| Primary Function | Analog Field Signal Output |
| System Role | PLC Analog Output Interface |
| Application | Industrial Automation / Process Control |
| Installation | GE VersaMax PLC System |
| Dimensions | 110 × 66.8 × 50 mm |
| Weight | 0.19 kg |
Product Features
The IC200ALG326H is used for analog command output within a GE VersaMax control architecture.
Key characteristics include:
- GE VersaMax Analog Output Module
- Model IC200ALG326H
- Provides analog control signals from the PLC to field equipment
- Suitable for continuously variable output applications
- Interfaces PLC control calculations with modulating field devices
- Applicable to process-control and machine-control systems
- Useful for proportional equipment control
- Suitable for control loops requiring variable output commands
- Integrates with the VersaMax PLC I/O architecture
- Useful for existing VersaMax system maintenance and replacement
The output configuration should be matched to the connected field device and the control application’s signal requirements. PLC scaling and field-device settings should be checked together during commissioning.
Working Principle
The IC200ALG326H receives an output value from the VersaMax PLC and generates the corresponding analog control signal for the connected field device.
PLC Control Logic → IC200ALG326H → Analog Field Device → Process / Machine
The operating sequence includes:
-
Process Evaluation
The PLC program evaluates process conditions, measured values, operator commands, or other application data.
-
Output Calculation
Control logic determines the required analog output value.
-
Digital-to-Analog Conversion
The IC200ALG326H converts the PLC output value into the applicable analog electrical signal.
-
Field Signal Transmission
The analog signal travels through the field wiring to the receiving device.
-
Equipment Response
The connected actuator, valve, drive, or other analog-controlled device responds according to the received command.
A typical control relationship is:
Process Data → PLC Calculation → Analog Output → Field Device → Process Response
Role in a VersaMax PLC Architecture
The IC200ALG326H operates at the analog-output layer of the VersaMax control system.
PLC Logic → IC200ALG326H → Field Actuator / Control Device
| System Element | Function |
|---|---|
| IC200ALG326H | Generates analog output signals |
| VersaMax CPU | Executes control logic and calculates output commands |
| VersaMax I/O System | Provides the PLC field-interface structure |
| Control Valve | Uses an analog command for proportional process control |
| Actuator | Converts the analog command into equipment movement |
| Variable-Speed Equipment | Uses an analog reference where applicable |
| HMI | Provides operator commands and displays process conditions |
| Engineering Workstation | Supports configuration and diagnostics |
Industrial Applications
| Application | Typical Use |
|---|---|
| Process Control | Sending variable commands to modulating equipment |
| Valve Control | Providing proportional control signals to compatible control valves |
| Pump Systems | Adjusting operating commands according to process requirements |
| HVAC Systems | Controlling variable operating conditions |
| Manufacturing Equipment | Sending analog commands to machine components |
| Chemical Processing | Regulating process equipment through variable output signals |
| Water Treatment | Controlling valves and other modulating equipment |
| Material Processing | Adjusting equipment operation according to process conditions |
The actual application depends on the receiving device, signal configuration, PLC program, and control strategy.
Installation and Maintenance
- Confirm the complete IC200ALG326H model before installation or replacement.
- Check the existing VersaMax rack and I/O configuration.
- Identify each field device connected to the analog output channels.
- Record channel assignments and existing output configuration.
- Inspect field wiring for loose terminals, damaged conductors, or incorrect connections.
- Verify the signal requirements of the receiving device.
- Check PLC output scaling before energizing the connected equipment.
- Install the module according to the approved VersaMax maintenance procedure.
- Confirm that the PLC recognizes the installed analog output hardware.
- Test the output using a controlled command value.
- Compare the PLC output value with the corresponding field signal.
- Verify that the receiving device responds correctly.
- Check process limits and control-loop behavior before normal operation.
- Record the final output configuration for future maintenance.
If the field device does not respond correctly, check the PLC output value, scaling, output channel, field wiring, signal characteristics, and receiving device before replacing the module.
Related Components
| Component | Function |
|---|---|
| GE IC200ALG326H | VersaMax Analog Output Module |
| VersaMax CPU | Executes PLC logic and generates output commands |
| VersaMax Power Supply | Supplies power to the control system |
| VersaMax I/O Components | Provide additional field interfaces |
| Control Valve | Receives variable analog control commands |
| Actuator | Converts control signals into mechanical action |
| Variable-Speed Drive | Can use an analog reference for speed control |
| HMI | Provides operator control and process monitoring |
| Engineering Workstation | Supports PLC and I/O configuration |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| GE IC200ALG Series | VersaMax Analog I/O Modules | Analog signal acquisition and output |
| GE IC200MDL Series | VersaMax Discrete I/O Modules | Digital field signal handling |
| GE IC200CPU Series | VersaMax CPU Module | PLC control and application execution |
| GE IC200PWR Series | VersaMax Power Supply | PLC system power |
| GE VersaMax I/O System | PLC I/O Platform | Machine and process automation |
| GE VersaMax Communication Modules | Communication Modules | PLC networking and data exchange |
Key Advantages
- GE VersaMax Analog Output Module.
- Model IC200ALG326H.
- Provides variable analog control signals from the PLC.
- Suitable for modulating field devices.
- Useful for process-control and machine-control applications.
- Supports analog command functions within VersaMax PLC systems.
- Suitable for control loops requiring continuously variable output.
- Useful for maintenance and replacement of existing VersaMax I/O systems.
Technical FAQs
What is the GE IC200ALG326H used for in a VersaMax control system?
The IC200ALG326H is used to send analog control signals from a VersaMax PLC to compatible field equipment. The PLC determines the required output value, and the module generates the corresponding analog signal for the receiving device.
Which types of equipment can use an analog output from the IC200ALG326H?
Typical applications include compatible control valves, actuators, variable-speed equipment, and other devices that accept an analog command. The receiving device must match the signal arrangement and configuration used by the PLC application.
Why should PLC scaling be checked when an IC200ALG326H output is incorrect?
The PLC program converts process or control values into an output command, while the receiving device interprets the resulting analog signal. Incorrect scaling can cause the physical output to differ from the intended engineering value even when the module itself is operating normally.
How can an engineer test an IC200ALG326H analog output during commissioning?
A controlled output command can be generated from the PLC application and compared with the corresponding physical signal at the field interface. The response of the connected device should then be checked to confirm correct signal transmission, scaling, wiring, and equipment operation.