Why Choose the ABB DO526-XC Digital Output Module?
The ABB DO526-XC is a robust S500-XC digital output module designed for ABB AC500-XC programmable automation systems and distributed S500 I/O installations operating in demanding industrial environments. It provides 8 transistor digital outputs rated for 24 V DC / 2 A, making it suitable for controlling higher-current industrial loads directly from an automation system.
The module divides its eight outputs into two galvanically isolated groups, providing electrical separation between the output groups and the module's other circuitry. The DO526-XC uses a 1-wire connection arrangement and provides dedicated LED indication for output states, process supply voltages and channel errors, helping engineers monitor system operation and diagnose faults.
As the XC eXtreme Conditions version of the DO526, the module is designed for AC500-XC installations requiring enhanced environmental capability. It operates from a 24 V DC process supply and uses the ABB TU542 terminal unit, with the TU542-XC available for XC installations. The ABB part number for the DO526-XC is 1SAP440800R0001.
Key Advantages
- Industrial 8-channel digital output module for ABB AC500 and S500 automation systems.
- 24 V DC transistor outputs rated at 2 A per channel.
- XC construction designed for use in extreme environmental conditions.
- Outputs arranged in two galvanically isolated groups.
- Integrated LED indication for output states, supply voltages and errors.
- Suitable for centralised AC500 I/O and decentralised S500 I/O expansion.
Key Features
- ABB S500-XC digital output module.
- 8 digital transistor outputs.
- 24 V DC nominal process supply voltage.
- 2 A maximum output current per channel.
- Outputs arranged in two groups.
- Module-wise and group-wise galvanic isolation.
- 1-wire digital output configuration.
- 8 yellow LEDs for digital output signal-state indication.
- 3 green LEDs for process supply voltage indication.
- 2 red LEDs for error indication.
- Connection to the controller or communication interface through the I/O bus.
High-Current Digital Output Control for Industrial Automation
Digital output modules provide the interface between a PLC control system and electrically operated field equipment. With eight 24 V DC / 2 A transistor outputs, the ABB DO526-XC is suited to applications requiring fewer channels with a higher current capability than high-density low-current output modules.
The DO526-XC can operate as a decentralised I/O extension for compatible ABB S500 communication interface modules or as a centralised extension for ABB AC500 CPUs. Its XC construction, galvanically isolated output groups and comprehensive status indication make it well suited to demanding machine and process automation installations.
Typical Applications
- Industrial machinery and production equipment.
- ABB AC500-XC PLC control systems.
- Distributed S500-XC I/O installations.
- Material handling and conveyor systems.
- Control of 24 V DC industrial actuators and switching devices.
- Machine building and process automation systems.
