Technical data

Computing Unit Expansions
4-33
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
Note
The interference field of the source of interference is reduced by the square of the
distance.
Connecting the computing unit to an S5 programmable controller
You can connect the computing unit to a SIMATIC S5 programmable controller
using the COM1/TTY interface.
To connect the computing unit to a SIMATIC S5 programmable controller, perform
the following steps:
1. Turn your computing unit off.
2. Plug the connecting cable onto the COM1 /V.24/PLC port.
!
Caution
Danger of damage being caused to the device
If you interchange the connectors, or use wrong connecting cables, the port might
be damaged. Be careful not to plug the TTY cable in the LPT 1 port of the
computing unit instead of the COM1/TTY port.
Always discharge your body’s charge and the charge of connecting cables before
plugging in connecting cables by briefly touching a grounded object (ESD
Guidelines).
Use only the original connecting cable for the connection to the programmable
controller.
The computing unit and the programmable controller must be operated at the
same protective conductor voltage.
Connecting the computing unit via an adapter
An adapter is available for connecting the computing unit to the PLC with earlier
standard connecting cables.
Interface Connection Connecting cable Adapter
6ES5 734-2BD20
TTY interface
Computing unit with
SIMATIC S5 programmable
6ES5 731-1xxx0
15-pin
6ES5 731-6AG00
(COM1)
controller
6ES5 731-0xxx0
25-pin
6ES5 731-6AG00