Datasheet PR515x530

I/O modules and communication

Issued 3 November 2026

Modbus RTU to 0-10 V, 4-20 mA and relay, with OLED display

Article number PR515x530

PR515 module in horizontal DIN rail enclosure, front three-quarter view, with screw terminals and USB-C port

The PR515x530 is a Modbus RTU slave on an RS485 bus with a 0-10 V output, a 4-20 mA output and a relay contact. A PLC, HMI or computer writes the required values into registers; the module converts them into analogue signals or switches the relay. If communication is lost, the outputs go to a safe value after an adjustable time. Modbus address and baud rate are set on the OLED display.

Price on request. Supplied in series, from 10 units per item. Not in stock? Then we build your series. One or a few units only as a trial, for a company with a series in sight.

Specifications

Supply12 and 24 V DC, operating range 11 to 30 V DC
InputModbus RTU over RS485
Output0-10 V; 4-20 mA (active); relay contact (normally open)
IsolationNot galvanically isolated
SetupOLED display with UP, DOWN and OK buttons
CommunicationModbus address and baud rate adjustable on the display; safe value on loss of communication
USBUSB-C for software updates and reading the status
Wi-FiBuilt-in hotspot for software updates
MountingDIN rail, horizontal enclosure

Setup

  1. Connect the supply, the RS485 bus (A and B) and the outputs according to the wiring diagram supplied with the module.
  2. On the display, set the Modbus address and the baud rate.
  3. Set the safe value and the timeout on loss of communication and store with SAVE; the register list is supplied with the module.