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Modbus RTU communication driver

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Modbus RTU communication driver

Postby bor » Thu Feb 07, 2019 12:23 pm

Good afternoon, please tell me how to configure Modbus RTU communication between PCs and remote access
supporting this protocol, PC with QNX Neutrino v6.5, USB-RS485 interface converter (S-500)
(Https://ipmach22.uaprom.net/p261592-ada ... rs485.html)? This task requires writing a driver? If so, how to dо this?
bor
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Re: Modbus RTU communication driver

Postby nico04 » Thu Feb 07, 2019 12:43 pm

bor wrote:This task requires writing a driver?

This depends on the interface you intend to use.
If it is based on a standard USB/serial converter chip, QNX will be able to mount the interface without writing a driver. If the USB/serial converter chip is not recognised by QNX, you will have to write a driver for it.

You will then require a MODBUS compatible software. Either a commercial one, an open source one or a self made one.
More informations here :
- http://www.modbus.org/tech.php
- https://www.modbusdriver.com/shop/index.php?cPath=45
- https://libmodbus.org/
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