TOUCH OPERATING PANEL
HZS 7321
04.09.2020
Page 17
X6: COM 3 (6-pin Weidmüller) -
120 Ω internal termination
The RS485/Modbus interface is protected against external voltages of ±30 V DC, there is no function for an error voltage!
The termination is made between the RS485/Modbus-A and RS485/Modbus-
B lines.
X7 USB Host 2.0 (Type-A)
Pin
Function
1
RS485/Modbus-A
2
RS485/Modbus-B
3
RS485/Modbus-A
4
RS485/Modbus-B
5
RS485/Modbus GND
6
RS485/Modbus-A
Pin
Function
1
+5 V
2
D-
3
D+
4
GND