Siemens Simatic PG 740 Manual page 108

Connection to S5 If you want to connect your PG 740 to the S5/V.24 port of a PG 6xx
PLC/V.24 and
programming device, you will need an adapter. In this case, the PG 740 must
COM1/TTY of a
be the active programming device. Please read the notes on changing over
PG 6xx
the TTY/COM1 port to active/passive in Chapter 4.
Figure 7-13
Programming Device PG 740
C79000-G7076-C742-01
PG 7xx Adapter
25-pin Cannon plug 6ES5 731–6AG00
connector port: COM1/TTY (Rel. 2)
active
330 ohms
22
+U 19
10
18
21
–U
330 ohms
8
19
+U
21
9
10 24
25
–U
12
1
Casing
23
20
3
6
2
20
3
4
17
Connecting to the S5/V.24 and COM1/TTY Ports of a PG 6xx
Programming Device
Hardware Information
PG 6xx
Connecting cable
25-pin Cannon plug conn.
6ES5 733-2xxx0
with AG-S5/V.24 port
passive
6
8
10
12
Casing
24
Shield/casing
25
2
GND
K3
3
4
K2
17 K1
7
7-19