Experimental Physics and
Industrial Control System

3.18. Operations Via Serial Interface RS 485
The group address of the TC 600 is 960 of the TC 100/TCK 100
is 950. All units connected to the bus must have differing serial
interface addresses [P:797]. The connection of an RS 232
(for example, a PC) is possible via Level Converter
PM 051 054-X. The description of the data communication
(PFEIFFER VACUUM protocol) can be found in Operating
Instructions PM 800 488 BN.

InTerminator = CR LF;
# no outTerminator because of unterminated ENQ
replytimeout = 1000;
readtimeout = 100;

#address = "";         # for RS232
address = ESC "0\$1"; # for RS485

debug {
    out $address "%s" CR;
    in ACK;
    out ENQ;
    in "%39c";
}

pressure {
    out $address "PR\$2" CR;
    in ACK;
    out ENQ;
    in "%(\$3:STATUS.VAL)d,%f";
}

Best regards,
Dirk

Hi all,
We have a Pfeiffer Turbo Pump, model TSH071E, and wish to communicate with it.
Has anyone developed a device driver and/or stream device protocol files that could be
used, or a similar driver/protocol files that could be used a starting point?
Also I found:
_http://mmrc.caltech.edu/Vacuum/Pfeiffer%20Turbo/DCU%20Operatioins.pdf_
while doing research. Can anyone confirm (or deny) that this is the correct protocol
specification to use?
Regards
*Andrew Starritt
**Principal Controls Engineer* *Australian Synchrotron
*800 Blackburn Road, Clayton, Victoria 3168, Australia
Tel: + 61 3 8540 4164 Fax: + 61 3 8540 4200
E-mail: [email protected]_ <mailto:[email protected]>



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Re: Pfeiffer Turbo Pump device driver Dirk Zimoch

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