Installation and Startup
2-26
FM 456-2 Application Function Module Installation, Hardware, and Startup
C79000-G7076-C458-01
Table 2-6
Pin Assignments of the Cable for Connecting an FM 456-2 via IF 962-COM to
the COM Interface of a PG/PC with 25-pin Sub-D Socket
Signal
Pin
Connection
Pin
Signal
E1 / GND
U
U
E1 / GND
D2 / RxD
2
2
D1 / TxD
D1 / TxD
3
3
D2 / RxD
E2 / GND
5
7
E2 / GND
9-pin Sub-D socket
(COM1 to
IF 962-COM)
Pin “U” = housing (screen)
Length: maximum 10 m (33 ft.)
25-pin Sub-D
connector
(COMx on PG/PC)
2.12
Switching On the FM 456-2 for the First Time
When the supply voltage is switched on, all status and error indicators of the
FM 456-2 light up briefly. If the mode switch is set to STOP, the STOP status/error
indicator lights up after switching on. Otherwise the module boots up. In the event
of a fault, the INTF indicator lights up.
If this does not happen with your module, please consult your Siemens contact at
a maintenance and repair center or the SIMATIC Hotline.
The preparation for operation is now completed within the scope of this manual.
You will find the further startup steps, for instance installation of the operating
system and the user program, in the
M7-SYS manual.