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

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

Article number PR515x530

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.

Supply 12 and 24 V DC, operating range 11 to 30 V DC
Input modbus RTU over RS485
Output 0-10 V; 4-20 mA (active); relay contact (normally open)

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.

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Orders are placed by email with a purchase order. We supply businesses only.

Specifications

Specifications
Supply	12 and 24 V DC, operating range 11 to 30 V DC
Input	Modbus RTU over RS485
Output	0-10 V; 4-20 mA (active); relay contact (normally open)
Isolation	Not galvanically isolated
Setup	OLED display with UP, DOWN and OK buttons
Communication	Modbus address and baud rate adjustable on the display; safe value on loss of communication
USB	USB-C for software updates and reading the status
Wi-Fi	Built-in hotspot for software updates
Mounting	DIN rail, horizontal enclosure

Printable datasheet

Setup

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

Application

Adding analogue outputs to a PLC or HMI with only RS485
Operating a frequency drive or valve driver remotely via Modbus
Switching a load from a computer or building management system

PR515 series: controllers and converters with OLED display

The modules in the PR515 series have an OLED display and push buttons, so they can be set up without a computer and show the current values of inputs and outputs. They run on 12 and 24 V DC systems. Most versions can be extended on request, for example with an extra relay output, a PWM output, a bus connection (CAN bus or Modbus) or a different sensor input.

More about the PR515 series