WI-MOD-E-100 & WI-MOD-E-300 Wireless Ethernet
User Manual
WI-MOD-E Manual v1.10
Page
62
Max connections are set to 10 meaning that a total of 10 remote TCP/IP clients may connect to this
Routing Server. ModBus Mode is selected so that the WI-MOD-E can route ModBus frames
directly to their intended destination. Max Poll Fails is set to 5 – meaning that if 5 consecutive
ModBus requests directed to a particular ModBus Slave fail to get a response then the routing table
entry for that slave device will be deleted. Inactivity Timeout is set to 0, so that Inactivity Timeouts
will not apply for this Routing Server. Similarly Keep-alive messages are not sent on inactivity.
Finally a password has not been specified, meaning that any remote TCP/IP client may connect to
this Routing Server.
The second entry in the example has been configured to operate in the generic Master/Slave
protocol mode. The main difference between the configuration of this entry and that of the ModBus
aware server configuration is that the ModBus Mode option is not selected. Consequently the Max
Poll Fail parameter cannot apply when the specific protocol is unknown and is therefore set to zero.
Finally, since the protocol is some sort of a generic Master/Slave type, we specify the Master Port as
the port that the remote Master must connect to, and the Slave Port as the port that all remote slave
devices must connect to. Data arriving at the Master Port will then be broadcast to all devices
connected to the Slave Port, whereas data arriving at the Slave port will be forwarded to the Master
Port only.
The third and final entry in the example above configures a Routing Server to operate in broadcast
mode. Only a Slave Port is configured in this case, and this is the TCP Port number of the WI-
MOD-E that all remote devices must connect to. Data arriving from any remote device will then be
broadcast to all other devices that are connected to this port.