User guide

eWON 500-2001-4001-4002 User Guide - IO Servers Configuration
eWON 500®2001®4001®4002® Version 4_3_0 - User Guide - 10/5/05 - ©ACT'L sa - Page 78
6.3.2.2 Setup for eWON IO server and Gateway - COM Setup
Figure 46: Modbus communications configuration
If more than one Serial port are available, you must choose on which COM the modbus request will be sent.
This configuration part defines the RS485 setup. The four first fields are used to define the baud rate, parity, number of stop bits and the reply
timeout (in msec – usually 1000 msec).
Warning: When there are multiple IO servers using potentially the serial line, then the unused IO server baudrate must be set to
Disabled.
Example: if Modbus and UniTE IO servers are available, at least one of them must have its baud rate set to Disabled. If not the case,
one of the IO servers will not be able to use the serial line and it will be disabled, with an error written in the event log.
6.3.2.3 Topic configuration
Figure 47: Modbus topics configuration