Pfeiffer TC400 User Manual

11
Connection "RS485"
6 Connection "RS485"
6.1 Connections
A Pfeiffer Vacuum display and control panel (DCU or HPU) or an external PC can be
connected to the electronic drive unit via the connection designated "RS485". The
interface is electrically isolated from the maximum supply voltage of the electronic
drive unit. The electrical couplings are optically decoupled internally.
6.2 Connecting Pfeiffer Vacuum display and control units or PC
 Use the connection cable supplied with the control panel or from the range of
accessories.
 The connection of respectively one external operating unit is possible on the in-
terface RS 485.
 A USB interface (PC) can be connected via the USB/RS485-converter.
Fig. 3: Optional connection possibilities for interface RS485
Designation Value
Serial interface RS485
Baud rate 9600 Baud
Data file word length 8 bit
Parity keine (no parity)
Start bits 1
Stop bits 1..2
12
34
5
Pin Assignment
1RS485: D+
2 +24 V output, loadable with ≤ 210 mA
3 GND
4RS485: D-
5not connected
DCU 002
DCU 310 / 400
TC 400
HPU 001
RS485
USB/RS485-converter

Pfeiffer TC400 Specifications

General

Brand	Pfeiffer
Model	TC400
Category	Controller
Language	English