Module: Modbus® (Modbus)
Modbus TCP
Establishing a connection via TCP/IP to the device is only possible if your
device is equipped with an Ethernet Interface (RJ45).
Contact your IT administrator in order to establish the network connection.
Part 1: Setting the TCP/IP Parameters
Call up
»Device parameter/TCP/IP«
at the HMI (panel) and set the following parameters:
•
TCP/IP address
•
Subnetmask
•
Gateway
Part 2: Configuration of the Devices
Call up
»Device parameter/Modbus«
and set the following communication parameters:
•
Setting a Unit Identifier is only necessary if a TCP network should be coupled to a RTU network.
•
If a different port than the default port 502 should be used please proceed as follows:
•
Choose “Private” within the TCP-Port-Configuration.
•
Set the port-number.
•
Set the maximum accepted time of “no communication”. If this time has expired – without any
comunication, the device concludes a failure within the master system.
•
Allow or disallow the blocking of SCADA commands.
Part 3: Hardware Connection
•
There is a RJ45 interface at the rear side of the device for the hardware connection to the control system.
•
Establish the connection to the device by means of a proper Ethernet cable.
EN MRU4 10/09
Page 163
