UMAX140940. CAN to Modbus TCP/IP Converter. Version 1
Page: 19-35
3.1 Modbus TCP/IP Master Settings
The CAN to Modbus TCP/IP Converter supports Modbus TCP/IP master running on its Ethernet
port. The
‘Ethernet Master Enable
’ options need to be set to
YES
for enabling the Modbus
TCP/IP master, see Figure 12.
Please note that enabling the Modbus TCP/IP master will disable the Modbus TCP/IP slave for
that device. As at a time one device can either work as Master or as Slave.
The Default target and Default source data routing options are the built-in variables for each
Modbus TCP/IP master message definition. The CAN receive message data target configuration
can access these variables directly if configured to do so on the CAN receive message
configuration page.
The received Modbus TCP/IP data can be also sent directly to CAN bus by selecting the
‘
Direct
CAN TX
’
option for the Forward received data to setpoint. In this case, the Received data number
specifies the J1939 PGN to use (the priority will default to 6 and the CAN to Modbus TCP/IP
Converter
’s J1939 address will be used as the source address for the direct transmit messages).
Figure 12. Modbus TCP/IP Master Settings
