Leuze electronic MSI 400 Series Manual page 47

Essential settings in the gateway configuration
(via MSI 430)
Define from and to where the data in the Modbus-
TCP network are to be read and written: Enter the
IP address and the slot number of the PLC control-
ler.
Gateway as slave
Tab. 6.3: Configuration directive – gateway as slave
Essential settings in the gateway configuration
(via MSI 430)
Select PLC requests and PLC writes in the gate-
way configuration dialog.
–
NOTICE
i
The address settings for the Modbus TCP gateway are 1-based. Please subtract 1 from the re-
gister address set in MSI.designer for a 0-based address setting.
Example: Register 1100 corresponds to the Modbus address 1099.
Master mode: MSI 430 reads from/writes to the PLC
Carry out the following steps to configure the gateway as a master:
Ä Change to the Gateway view and click on the Gateway configuration tab.
Ä Select the MSI 400 is Master/Client option at the very bottom of the Modbus mode section.
ð The settings required for master mode are activated automatically in the Output data (to PLC) and In-
put data (from PLC) sections.
Quick reference
You can make the following additional settings:
"Output data (to PLC)" section
Area highlighted in gray
Leuze electronic
Settings required for the PLC program and/or in
the Modbus TCP configuration tool
–
Settings required for the PLC program and/or in
the Modbus TCP configuration tool
–
Select which data are to be written to the gateway
or read from it.
Ensure that the PLC program writes the data into
the addresses allocated to the gateway (see Table
"Data addressing for the MSI 430 as recipient
[chapter 6.3]").
MSI 400
Modbus TCP gateway
47