Geysitech (Bayern-Hessen) Protocol
Geysitech Commands
D-4 Model 42i Low Source Instruction Manual Thermo Electron Corporation
The <address> is optional, which means it can be left out completely. The
<address> if present must match the Instrument Address. Additional space
can be present after the <address>.
If the received command does not satisfy the above formats or if the
<address> does not match the Instrument Address the command is ignored.
This is a sample command to switch the instrument to zero mode,
instrument id 5:
<STX>ST005<SP>N<CR>
This command DA initiates a data transfer from the instrument. The
instrument responds with measurement data, which depends on the range
mode and is listed in “Measurements reported in response to DA
command” below.
The command structure for a data query command is as follows:
<STX>DA<address><ETX><BCC>
The <address> is optional, which means it can be left out completely. The
<address> if present must match the Instrument Address. Additional space
can be present after the <address>.
If the <address> is left out then no space is allowed in the query string.
A command with no address is also a valid command.
The following are the different acceptable formats of the DA command
with Instrument Address 5:
<STX>DA<CR>
<STX>DA005<CR>
<STX>DA<SP><SP>5<ETX><BCC>
<STX>DA<ETX><BCC>
The data query string is valid and will be answered with data transmission
only if the command starts with <STX> which is followed by the characters
DA, and the <address> (if present) matches the Instrument Address, and
the command is terminated with either <CR> with no checksum or <ETX>
followed by the correct checksum <BCC>.
Data Sampling/Data
Query Command
(DA)
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