Ethernet Settings For Modbus/Tcp - JUMO mTRON T Manual

2 Connecting interfaces
2.5

Ethernet settings for Modbus/TCP

This menu is used to implement settings for the Modbus/TCP operating mode. If the central
processing unit is operating as a Modbus master, it can communicate with up to four external
devices (Modbus slaves; device 1 to 4). If it is operating as a Modbus slave, two external de-
vices (Modbus master) can simultaneously access the central processing unit.
Setup dialog
Parameters
Parameter
Modbus slave (central processing unit as Modbus slave)
Port
Modbus master (central processing unit as Modbus master)
Timeout
Scanning cycle
IP-address
Port
NOTE!
To ensure that fixed IP addresses are used, the DHCP must be deactivated in the devices
involved, if applicable.
22
Selection/settings
0 to 502 to 1024
60 to 2000 to 10000 ms
60 to 500 to 99999 ms
0.0.0.0
0 to 502 to 1024
Description
TCP port for Modbus/TCP
Changes to the port are not applied until
after the system has been restarted.
A request sent by the master is defined
as faulty if no answer is received within
this time.
The Modbus master requests the Mod-
bus master data from the Modbus slave
at these intervals.
IP address of the external device (Mod-
bus slave)
The address must be set.
TCP port of the external device for Mod-
bus/TCP