TOUCH OPERATING PANEL
HZS 772
15.07.2020
Page 11
X3:
COM 1 (D-Sub)
X4:
CAN 1 (6-pin Weidmüller)
X5:
COM 3 (6-pin Weidmüller)
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 by an internal 120
Ω
resistor on the X5 connector between
RS485/Modbus-A and RS485/Modbus-B.
Pin
Function RS232
1
DCD
2
Rx
3
Tx
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
Pin
Function
1
CAN A (LOW)
2
CAN B (HIGH)
3
CAN A (LOW)
4
CAN B (HIGH)
5
CAN GND
6
n.c.
Pin
Function RS485 ModBus
1
RS485/Modbus-A
2
RS485/Modbus-B
3
RS485/Modbus-A
4
RS485/Modbus-B
5
RS485/Modbus-GND
6
n.c.
