MR MESSKO COMPACT - Page 66

6 Installation and commissioning
66 5831400/02 EN
6.4.6.3 Modbus RTU (type TTM) connection
The pointer thermometer is equipped with a Modbus RTU (RS-485) interface
that digitally transmits the temperature value. The interface has a half-duplex
design.
Connecting the 24VDC power supply in accordance with the
connection diagram
1. Press in the white actuator using the actuating tool (width 2.5mm).
2. Connect the wires to the terminals "24VDC(+/-)". Do so by pushing the
wires through the opening up to the stop.
3. Release the actuator.
Figure49: Connecting the supply voltage