Interfaces - Siemens SIMATIC HMI OP 73micro Operating Instructions Manual

Connecting the cables
When connecting the cables, ensure that you do not bend any of the contact pins.
Secure the connectors with screws.
Always use shielded data cable. Always use standard cables. For further information, refer to
the SIMATIC HMI Catalog ST 80.
The pin assignment of the interfaces is described in the specifications.
See also
Safety instructions (Page 17)
4.2.2.1

Interfaces

The figure below shows the interfaces of the HMI device.
Figure 4-2
①
②
③
See also
Power supply (Page 146)
RS485 (IF 1B) on OP 73micro (Page 146)
OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
NOTICE
Connection sequence
Always follow the correct sequence for connecting the HMI device. Failure to do so may
result in damage to the HMI device.
Interfaces of the HMI device
Power supply connector
RS 485 interface (IF 1B)
Chassis ground terminal
Mounting and connection
4.2 Mounting and connecting the OP 73micro
41