Herz firematic PELLET 120, Operating Instructions Manual

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9 T-CONTROL
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The T-Control is connected to the repeater or router via Ethernet (LAN). The repeater or router must be
configured so that it communicates with the Internet router via WLAN.
After setting up the repeater or router, the network settings must be made in the T-Control.
9.13.2 Modbus
– settings
Navigation:
Screen:
By pressing the button:
active Modbus TCP activated (green) or deactivated (black).
Port Setting up the TCP port number. 502 is reserved for Modbus-TCP.
Timeout Setting up the time delay of the data transfer
RX / TX Buffer Setting up the buffer size in byte
max. values Setting up the maximum values of the servers.
Accept
Changes
Save changes
the network configuration page will be displayed again.
Note:
Modbus is an application protocol to exchange messages between intelligent Modbus controllers in the
building manag
ement system. The Modbus protocol “TCP” is used in the HERZ control. This protocol
transmits the encoded data via LAN cable. Modbus ensures that connected controllers in the building
management system receive the transmitted data from the boiler, so they can continue processing.