Operating between valve and Rexroth IndraControl PLC, Drive and Diagnostic Link system checks the correct functionality of end-of-line units and reports any faults in plain text.
Drive and Diagnostic Link is the gateway between valve and PLC, extending the function of the Rexroth IndraControl PLC system. As soon as the machine is switched on, the system checks the correct functionality of end-of-line units and reports any faults in plain text. The appropriate PLC displays the plain-text message.

The diagnosis becomes fast and simple, minimizing downtime.

The DDL gateway from Rexroth clearly simplifies the operation of valve units and, what is more, provides detailed monitoring of the electrical control.

The DDL diagnostic system from Rexroth supplies concrete information from the pneumatic actuators directly to the controller.

Checkable points include the tolerance of the supply voltage, function of the solenoid coil and the short-circuit indicator.

The controller is capable of deriving a detailed diagnosis from the check results and can even generate and display plain-text messages.

Having said that, the diagnostic system does not come into play only in case of a fault.

The check can be made as soon as the machine is switched on, establishing whether the pneumatic subsystem is operational and functions correctly in all the sections.

Per gateway it is possible for up to three control valves and valve units of different series to be gated flexibly, securely and rapidly and integrated into production systems under IndraControl.

The DDL between gateway and pneumatic components is equipped with M12 connectors, enabling particularly simple cabling to as many as 48 inputs and outputs for each gateway.

On the PLC side, a plain-text display replaces the usual LED displays.