I have two slaves in an modbus RTU network. one slave parity can be only NONE and the second slave parity can be only EVEN.

what can i do?
there is a device that can get two different modbus configurations (parity) at the input and generate third modbus configuration at the output?

 

Hi,

Using a multiple serial port Modbus RTU gateway such as www.fieldserver.com so you can set up each serial port with different serial port settings and pull the data to a common interface.

Regards,
Richard

 

Normally we use different communication port or card to solve problem like this one.

 

Does a FieldServer device act as a combination client/server (server to the master; client to the slave)?

 

We have a device that will create 2 virtual com ports to connect to these 2 devices. Each com port can be set up with individual settings and can communicate via Modbus RTU. From here, you can connect via modbus TCP via ethernet cable to your master. Here's the link to the product and manual pages.

I-7188-E3-MTPCP
http://www.icpdas-usa.com/products.php?PID=2995

For a complete description of how this is implemented, please refer to page 5
ftp://ftp.icpdas.com/pub/cd/8000cd/napdos/modbus/7188e/document/7188ex_mtcp_quickstart_manual.pdf