H31.0.31.6C-06
User’s Manual GMH3150
page 9
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5 The Serial Interface
By means of the serial interface and a suitable electrically isolated interface adapter (GRS3100, GRS3105 or
USB3100) the device can be connected to a computer for data transfer. With the GRS3105 up to 5 devices
of the GMH3xxx- series can be connected to one interface (see also manual of GRS3100, GRS3105 or
USB3100) To avoid transmission errors, there are several security checks implemented e.g. CRC.
The following standard software packages are available:
!
GSOFT3050
:
Operation and read out of logger function, data display in diagrams and tables
!
EBS9M
:
9-channel software to display the measuring values
!
EASYCONTROL
: Universal multi channel software (EASYBUS-, RS485-, or GMH3000- operation
possible) for real-time recording and presentation of measuring data of one GMH3xxx
device in the ACCESS®-data base format
In case you want to develop your own software we offer a
GMH3000-development package
including:
•
a universally applicable Windows functions library ('GMH3000.DLL') with documentation that can be used
by the most programming languages.
•
Programming examples Visual Basic 4.0, Testpoint (Keithley Windows measuring software)
In addition to the operation at a PC the device can be operated with the
GAM3000-device
, to use the alarm
function for simple supervision and controlling applications. Just connect a GAM3000 to the interface,
activate the alarm function of the GMH and the relais output is operating.
The device has 3 channels:
1: current measuring value (base address)
2: min peak (p.r.t. chapter 4)
3: max peak (p.r.t. chapter 4)
Note:
The measuring-/ alarm- and display range values read back from the interface are always
in the selected measurement unit (mbar, bar...)!
Supported functions:
Channel
Code Name/Function
Channel
Code
Name/Function
1 2 3
1 2 3
x x x 0
Read measurement value
x x x 199
Read kind of measuring of display
x x x 3
Read system state
x x x 200
Read min display range
x
6
Read min memory
x x x 201
Read max display range
x
7
Read max memory
x x x 202
Read display range - unit
x x x 12
Read ID number
x x x 204
Read display range – decimal point
x
22
Read min alarm rail (AL. - AL.Lo)
x
208
Read # of channels
x
23
Read max alarm rail (AL. - AL.Hi)
x
220
Read altitude (only abs. press sensors)
x
221
Set altitude (only abs. press sensors)
x
222
Read power off time (Conf-P.oFF)
x
223
Set power off time (Conf-P.oFF)
x x x 224
Logger: Read data of CYCL- Logger
x
32
Read configuration flag
BitAlarmOn:1; BitAlarmSound:3;
BitCorrectToSealevel:32 (only abs. press. Sensors);
BitPeakDetection:33; BitFastFiltered:34;
BitLoggerOn:50; BitCyclicLogger:51;
BitLowPowerLogger:52
x
225
Logger: Read cycle time (LoGG - CYCL)
x
102
Set min alarm rail (AL. - AL.Lo)
x
226
Logger: set cycle time (LoGG - CYCL)
x
103
Set max alarm rail (AL. - AL.Hi)
x
227
Logger: start recording
x
160
Set configuration flag (refer to 32)
x
228
Logger: Read # of recordings made
x
174
Clear min memory
x
229
Logger: Read state
x
175
Clear max memory
x
231
Logger: Read stop time
x x x 176
Read min measuring range
x
233
Read real time clock (CLOC)
x x x 177
Read max measuring range
x
234
Set real time clock (CLOC)
x x x 178
Read measuring range – measuring unit
x
236
Read logger memory size
x x x 179
Read measuring range – decimal point
x
240
Reset
x x x 180
Read kind of measuring of sensor
x
254
Program version
x
194
Set display unit
x
260
Logger: read data of STOR Logger
