Pfeiffer Vacuum TPH 2201, Руководство по эксплуатации

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10
3.11. Connecting The Serial
Interface RS 485
An external operating component (DCU 001/DCU 600) or an
external computer can be connected via the connection
”RS 485” on the TC 600 with the use of an 8 pole modular
connecting cable.
The serial interface is galvanically and safely separated from
the maximum supply voltage from the TC 600.
Connection
Connecting The RS 485
Connecting to a fixed bus system:
➡
Connect all units with D+ (pin 5/RS 485) and
D- (pin7/RS 485) to the bus.
➡
The bus must be connected at both ends.
The connections should be made in accordance with the
specification of the Serial Interface RS 485.
PIN Arrangement
1 not connected
2 +24V output (
≤
210 mA loading
capacity)
3 not connected
4 not connected
5 RS 485: D+ (DO / RI)
6 Gnd
7 RS 485: D- (DO / RI)
8 not connected
All units connected to the bus must have differing serial inter-
face addresses (parameter 797).
The group address of the TC 600 is 960.
Only safety low voltages (SELV) may be connec-
ted to Serial Interface RS 485 .
All switched on remote functions have priority over the serial
interface functions.
Please Note:
Please refer to the separate Operating Instructions
PM 800 488 BN for more detailed information on operations
via Serial Interface RS 485 and its electronic data.
1 ... 8
Description Value
Serial Interface Type: RS 485
Baudrate: 9600 baud
data word lenghts: 8 bit
Parity: no (no parity)
Startbits: 1
Stopbits: 1..2
The electrical connections are internally optically decoupled.
Please note:
It is possible to connect an RS 232 (e.g. PC) via a level conver-
ter (please see ”Accessories”).
(View from the
plug side of the
TC 600)
RS 485
5:D+, 7:D–
R
T
R
T
PC
Level Converter
TC TC