Siemens SIMATIC RI 45 PIII Series Manual page 26

System Unit
Connecting the RI
You can connect the RI to a SIMATIC S5 programmable controller via the
to S5
COM1/TTY interface port.
Programmable
Connect your RI to a SIMATIC S5 programmable controller as follows:
Controllers
1. Switch off the RI.
2. Plug the cable into the COM1/V.24 PLC interface port.
Caution
!
Risk of damage to the RI!
The interface port may be damaged if you confuse the connections or use the
wrong connecting cables. Make sure the TTY cable of the RI is plugged into
the COM1/TTY port and not into the LPT1 port.
Before plugging in the cables, you must discharge your body's electrostatic
charge by briefly touching a grounded object (ESD guideline).
Use only the original cables to establish the connection to the programmable
controller.
The RI and the programmable controller must be operated at the same
protective ground potential.
Connecting the RI
An adapter is available for connecting the programmable controller using
via an Adapter older standard cables.
TTY interface
(COM1) (COM1)
Higher Data
In order to maintain a data transfer rate of 9600 bps up to a distance of over
Transfer Rates at
1000 m (3300 ft), the receiving diode is connected to ground (reference) via
Distances of up to
the connecting cable. Cables of various lengths are available under the order
1000 m (3300 ft.)
no. 6ES5 734-2xxx0 (xxx stands for the length in meters).
1-20
Interface Link
RI to SIMATIC S5
p g programmable
controller
Connecting Cable Adapter
6ES5 734-2BD20
6ES5 731-1xxx0 6ES5 731-6AG00
15-pin
6ES5 731-0xxx0 6ES5 731-6AG00
25-pin
RI 45 PIII, Manual
C79000-G7076-C817-01