1 Introduction

The MP App is a simple utility for configuring the input/output module MP24-AIO. This document describes the features of the application, see also MP24-AIO manual for detailed information about the device itself. The purpose of the utility is to change device settings and manage firmware updates.

2 Main Window Overview

Device info

· Serial number

· Firmware version

· Hardware version

Analog outputs

· Actual output voltage (the range is 0…10 V)

· Output value editor

Analog inputs

· MP address (PP, MP1 … MP8)

· Actual input value (interpretation is based on value type)

· Input value type (see the table below)

· MP Address setting

· Value type setting

The changes to analog outputs and inputs must be confirmed by APPLY button or the Enter key.

Analog input types
	Label	Meaning	Value range	Integer encoding
0	None	Turned off	0	0
1	VOLTAGE	Voltage	0 to 10 V	0…10000
2	RESISTOR1	Resistance – range 1	100 Ω to 5 kΩ	100…5000
3	RESISTOR2	Resistance – range 2	100 Ω to 60 kΩ	100…60000
4	Switch	Switch state	1 (0–2 V); 0 (> 2 V)	0…1
5	CURRENT	Electrical current	0 to 20 mA	0…2000
6	PT1000	Temperature sensor Pt 1000	-40,0 to 220 °C	-400…2200
7	NI1000_5000	Temperature sensor Ni 1000 (Tk 5000)	-40,0 to 220 °C	-400…2200
8	NI1000_6180	Temperature sensor Ni 1000 (Tk 6180)	-40,0 to 220 °C	-400…2200

3 How to

3.1 Start Communication

The connection is via USB interface. The device implements Virtual COM Port (VCP) interface, it appears as a serial port. The device driver should be installed automatically when the device is first connected. The Windows operating system assigns a unique COM port during the installation. If more than one device is used on a single computer, each device has a different port number assigned. The assigned COM port can be changed in Device Manager.

1. Connect the device using USB to your computer

2. Wait for driver installation

3. Start the application

4. Select the correct serial port

5. Click Connect

Note: If there are many COM ports available on the computer, the following procedure can be used to determine the right one:

1. Connect the device to the computer (or disconnect if it has been already connected)

2. Update the list of available ports

3. Check out what port appears in the list (or disappears)

3.2 Update Firmware

The actual firmware is available for download at FIRVENA website (https://www.firvena.com/en/input-output-module-with-mp-bus-communication/p-28/).

1. Download the firmware file

2. Connect the device

3. Open the firmware file (dragging the file into the Firmware update box also works)

4. Use Upload button to write the file into the device

5. Use Restart button to reboot the device

6. Disconnect the USB cable for a while

Now the device performs reprogramming, wait until the green PWR LED shines again.

7. Start communication

8. Check the firmware version

Revision History