Thermo Fisher Scientific
Model 15
i
Instruction Manual
D-1
Appendix D
Geysitech (Bayern-Hessen) Protocol
This appendix provides a description of the Geysitech (Bayern-Hessen or
BH) Protocol Interface and is supported both over RS-232/485 as well as
TCP/IP over Ethernet.
The Geysitech commands that are implemented are explained in detail in
this document. The Geysitech protocol support for the
i
Series enables the
user to perform the functions of reading the various concentrations and to
trigger the instrument to be in sample/zero/span mode if valid for that
instrument. This is achieved by using the supported Geysitech commands
listed below.
Up to three simultaneous connections are supported over Ethernet.
For details of the Model 15
i
Geysitech Protocol specification, see the
following topics:
“
Serial Communication Parameters
” on page
D-1
“
TCP Communication Parameters
” on page
D-2
“
Instrument Address
” on page
D-2
"
Abbreviations Used
” on page
D-2
“
Basic Command Structure
” on page
D-2
“
Block Checksum
” on page
D-3
“
Geysitech Commands
” on page
D-3
The following are the communication parameters that are used to configure
the serial port of the
i
Series to support Geysitech protocol.
Number of Data bits
: 7 or 8
Number of Stop bits
: 1 or 2
Parity
: None, Odd, or Even
Data rate
: 1200 to 115200 Baud (9600 is default)
Serial Communication
Parameters