Siemens SIMATIC PC 670 Equipment Manual page 55

Release 04/02
Connecting the computing unit to programming units (TTY)
In order to connect the computing unit, connect the corresponding connection
cable to the TTY interface.
Table 3-2
Interface
COM 1 as TTY
port
Notice
1. When connected in series, it is essential to connect the cable in the right direction (refer
to Figure 3-10).
2. The connecting cable is available for order only as a spare part. A description of the
connecting cables is provided in Chapter 7.
PG 7xx
6ES5 731-6AG00
Figure 3-10
Notice
When connecting the computing unit to another programming unit, switch the TTY
ports (COM 1) in one of the programming units by changing the jumper setting.
When the computing unit is delivered to you, this port is always set to active.
Panel PC 670 Computing Unit, Equipment Manual
Connecting and Switching on the Computing Unit
Connecting the computing unit to other programming units
Connection
with PG 6xx
Adapter
Active
6ES5 733-2xxx0
Direction of Connection: Adapter - Connecting Cable
Connecting cable
Order No.
Series connection of
6ES5 733 -2xxx0
and
6ES5 731-6AG00
Connecting cable
Passive
PG 6XX
Adapter
6ES5 731-6AG00
2)
1)
3-21