HMI PLC all in one: TPAC1008 03 Mect srl
ME7068_05 11/19
19
4.6.
ModBus wiring (available in all models)
The ModBus interface on the TPAC1008 03 is a 4 wires RS485 serial one, on M2
terminal on the pins shown in the following table.
Table 9
Pin
Segnale
Descrizione
11
GND
12
TX +
Line + Trasmission
13
TX -
Line - Trasmission
14
RX +
Line + Reception
15
RX -
Line - Reception
Here is a wiring example of a system composed by:
MPNC005
MPNC020
MPNC030
TPAC1008 03
Figure18