GHM DeltaOHM HD2010UC, Operating Manual

Page: 59 / 134

HD2010UC
- 59 -
V4.2
C
OMMUNICATION
P
ROTOCOL
The command consists of ASCII strings with a variable length, ending in CR-LF.
The instrument provides always a response, after a command has been received; if the command is
not accepted, the response string is always NAK-CR-LF. It is possible to disable the response, when
it is not expressly requested by the command, modifying the VERBOSE setup parameter (see the
SET paragraph).
Commands are divided into 5 groups, as shown in the following table.
Group N. of Commands Description
SET 60 SETUP: parameter configuration
KEY 21 KEY: keyboard simulation
STT 4 STATUS: instrument status
DMP 6 DUMP: memory dump
Each group contains a given number of commands. Each command is identified by a specific string.
The generic syntax of a command is the following:
< group>:<command>:<value >:CR-LF
Ex.: “SET:INPUT_GAIN:10\r\n”
sets the INPUT_GAIN parameter to 10dB (see SET paragraph).
Only capital characters are acknowledged. Each token can be shortened at the minimum number of
characters that univocally identify it. The example can be shortened as follows:
“SET:INP:10\r\n”
Here are the possible command formats.
A3 - SET:INTEGRATION_TIME:<{SS,MM,HH}>:< value >CRLF
A4 - SET:TIME:<hh>:<mm>CRLF
A5 - SET:DATE:<aaaa>:<mm>:<gg>CRLF
A6 - SET:x_SLM_PARAMETER:< Parameter abbreviation>:<parameter attribute >CRLF
A8 - SET:<COMAND>:< value >CRLF
A10 - SET:<COMAND>:?CRLF
C1 - KEY:<COMAND>CRLF
C2 - KEY:<COMAND>:< value >CRLF
D1 - STT:<COMAND>:< OPTION >CRLF
E1 - DMP:<COMAND>CRLF
If you enter “?” properly in the string, you can get either a help for the compilation of the desired
command or the current status of the instrument configuration parameters. Here are the formats of
the commands that use the “?” character “?”.
0
?CRLF Provides the list of the groups of commands
A9 SET:?CRLF Provides the command list of the SET group
A10 SET:<COMMAND>:?CRLF Provides the current status of the specified command
C3
KEY:?CRLF Provides the command list of the KEY group
D2 STT:?CRLF Provides the command list of the STT group
D3 STT:<COMMAND>:?CRLF Provides the current status of the specified command
E2
DMP:?CRLF Provides the command list of the DMP group