Pfeiffer Vacuum TCP 3000 User Manual

10
3.11. Connecting the RS-485 Interface
Interfacing is provided by means of an RJ45 plug (modular
plug) at the socket “RS-485” on the rear of the unit.
Physical Connection
“RS-485” pinout
A RS-485 bus is arranged as depicted in
the figure below, for example. By means
of standard modular connectors, cables
and branch-offs the signals are looped
through from one unit to the next.
Connection to a fixed bus system
➡ Connect all units with D+ (pin 5) and D- (pin7) to the bus.
The bus must be terminated at both ends with RT.
Networking of several units
➡ Loop the bus through with the aid of a tee piece.
The bus must be terminated at both ends with RT.
All units connected to the bus must be set to a different inter-
face address [P:797].
Only extra-low voltages may be connected to
the RS-485 interface.
3.12. Connecting the RS-232 Interface
Interfacing is provided by means of an RJ45 plug (modular
plug) at the socket “SERVICE” on the rear of the unit.
Physical Connection
“Service” pinout
1)
Caution! No connections may be run to these pins. They
are only used by PFEIFFER VACUUM Service!
WARNING
PIN Assignment
1 not connected
2 +24 V* DC (load current < 150 mA)
3 not connected
4 not connected
5 RS-485: D+ (DO / RI)
6 gnd*
7 RS-485: D- (DO / RI)
8 not connected
5:D+, 7:D–
R
T
R
T
PC
Level converter
TC
TCP
RS-485 with networking
Designation Value
Type of interface: RS-485
Baud rate: 9600 baud
Data word length: 8 bit
Parity: no parity
Start bits: 1
Stop bits: 1..2
Designation Value
Type of interface: RS-232
Baud rate: 9600 baud
Data word length: 8 bit
Parity: no parity
Start bits: 1
Stop bits: 1..2
Pin Assignment
1 reserved
1)
2 reserved
1)
3 RS-232 RxD
4 RS-232 TxD
5 reserved
1)
6 Gnd
7 reserved
1)
8 reserved
1)
RS-485
1..........8
Service
1..........8

Pfeiffer Vacuum TCP 3000 Specifications

General

Brand	Pfeiffer Vacuum
Model	TCP 3000
Category	Control Unit
Language	English