12
3.10. Installation Of Pfeiffer Vacuum
Display And Control Units
An external display and control unit (DCU 001, DCU 100, HPU
001) or an external PC can be connected via the connection
”RS 485” on the TC 600 with the use of a shielded 8 pole
modular connecting cable (contained with the delivery of the
DCU/HPU).
All units connected to the bus must have differing serial
interface addresses (parameter 797).
The group address of the TC 600 is 960.
Only SELV may be connected to the serial inter-
face RS 485.
All switched on remote functions have priority over the serial
interface functions.
The Profibus DP Gateway TIC 250 (accessory) is available for
connecting an electronic drive unit TC 600 to a Profibus DP.
WARNING
D
De
essiig
gn
na
attiio
on
n
V
Va
allu
ue
e
Serial interface type:
RS 485
Baud rate:
9600 Baud
Data file word length:
8 bit
Parity: no
parity
Start bits:
1
Stop bits:
1..2
The electrical connections in the TC 600 are optically
decoupled.
Pin
O
Oc
cc
cu
up
pa
an
nc
cyy
1 not
connected
2
+ 24 V output (loadable with 210 mA)
3 not
connected
4 not
connected
5
RS 485: D+ (DO / RI)
6 Gnd
7
RS 485: D- (DO / RI)
8 not
connected
RS 485
1 ... 8
It is possible to connect an RS 232 (e.g. PC) via
a level converter (please see ”Accessories”).
3.11.
Connecting The RS 485
Please refer to the operating instructions
PM 0488 BN for detailed operating procedures
and electrical data in respect of the serial
interface RS 485.
Connection to a fixed bus system
➡
Connect all units with D+ (pin 5 / RS 485) and D- (pin 7 /
RS 485) to the bus.
➡
The bus must be closed at both ends.
The connections should be made in accordance with the
specification of the Serial Interface RS 485.
☞
PLEASE NOTE
☞
PLEASE NOTE
5:D+, 7:D
R
T
R
T
PC
Level Converter
TC
TC
(View from
the plug side
of the TC
600)
The serial interface is galvanically and safely separated from
the maximum supply voltage from the TC 600.
Connection
DCU 001
without power supply
DCU
with power supply
TC 600
HPU 001
RS 232
level converter
TIC 001
RS 485
Connecting the Serial Interface RS 485
