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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 7 Display and operating unit AZL5... 13.08.2004
7.1 Assignment of AZL5… terminals
CAN X70
PIN
2 CAN L
3 GND
4 VAC 2
7 CAN H
8 VAC 1
Unknown pins = not connected
CAN
Pin
COM 2
LCD
X70 X72
COM2
X72
PIN
1 TXD
3 RXD
4, 6 GND
5 U 1
7 U 2
81
96
51
87
432
Socket
Operating
field
Socket
COM1
X71
PIN
2 RXD
3 TXD
5 GND
COM 1
X71
9
6
1
5
78
234
7550a08E/0502
COM1 Port for PC (RS-232); for parameterization and visualization
with the help of the PC tool software
COM2 Port for BACS via external bus interface
CAN bus Port for the LMV5… basic unit
COM1 and COM2 cannot be active at the same time!
Note
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