Why Choose the Unitronics IO-DI8ACH AC Digital Input Expansion Module?
The Unitronics IO-DI8ACH is a specialised AC digital input expansion module designed to extend the input capabilities of compatible Unitronics Vision and M91 PLC systems. Featuring 8 digital AC inputs, the module enables direct connection of high-voltage AC control signals, making it ideal for industrial automation systems operating with 110V AC and 220V AC field devices.
Designed for demanding industrial environments, the IO-DI8ACH eliminates the need for additional signal conversion hardware when monitoring AC-powered switches, relays and control circuits. Its galvanically isolated inputs help improve system protection and operational reliability while ensuring safe integration into industrial control systems.
With 8 AC digital inputs, DIN rail mounting capability and compatibility with Unitronics expansion adapters, the IO-DI8ACH provides a reliable and efficient solution for expanding PLC input capacity in machinery, process control and building automation applications.
Key Advantages
- Provides 8 AC digital inputs for PLC expansion.
- Accepts 110V AC and 220V AC control signals.
- Wide 80-250V AC input range.
- Galvanically isolated inputs improve system protection.
- Direct connection to AC field devices without additional converters.
- Compact DIN rail-mounted design saves control panel space.
- Compatible with selected Unitronics Vision and M91 controllers.
Key Features
- Unitronics IO-DI8ACH digital input expansion module.
- 8 AC digital inputs.
- 80-250V AC input voltage range.
- Suitable for 110V AC and 220V AC systems.
- Galvanic isolation between channels and system bus.
- Communication status indicator.
- Individual input status LEDs.
- DIN rail or panel mounting options.
- Designed for use with Unitronics expansion adapters.
Reliable AC Signal Monitoring for Industrial Automation
The Unitronics IO-DI8ACH is specifically designed for applications where AC control voltages must be monitored directly by a PLC system. By supporting 80-250V AC inputs, the module allows automation engineers to interface with industrial switches, relays, contactors and signalling devices without requiring additional interposing hardware.
Its galvanic isolation and industrial-grade construction provide reliable operation in demanding environments while simplifying system design and reducing installation complexity. The module integrates seamlessly with compatible Unitronics expansion architectures via an I/O adapter interface.
Typical Applications
- Industrial machinery control.
- AC relay monitoring.
- Contactor status monitoring.
- Building management systems.
- HVAC control systems.
- Process automation applications.
- OEM control panels.
- Factory automation systems.
