search

Enser45 / nmodbus

Automatically exported from code.google.com/p/nmodbus
0 stars 0 forks source link

WriteMultipleRegisters GSM timeout #77

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
I wrote a winform application that can send modbus commands to a PLC via RS232 
cable connected, or via GSM modem.

If I'm locally connected to the PLC (RS232) I can read and write multiple 
registers with the maximum buffer length without any problem (I set the 
application maximum at 100 instead of 123 registers per request).

If I switch in GSM communication I can read the maximum registers number 
without any problem (100) but the maximum registers number I can write falls 
around 10 or less.
If I try writing more registers I get a timeout error.

I don't know what the issue can be about.
Can anyone help me?

Original issue reported on code.google.com by faster.b...@gmail.com on 19 Mar 2015 at 7:53