Aplisens SGE-25.Modbus Manuel de l'utilisateur - Page 11
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The SGE-25.Modbus and SGE-25S.Modbus probes have two modes of operation:
-
configuration mode;
-
Modbus mode.
The configuration mode is used to change the settings and for accurate diagnostics of the probe. In this
mode, in devices with software version at least 14 and electronics version at least 48, the current loop
is also activated, allowing operation with current output 4...20 mA.
The SGE-25.Modbus and SGE-25S.Modbus probes in Exi version have a Modbus RTU
interface without current regulator 4...20 mA.
If the user intends to use the 4...20 mA operating mode, the probe must be left in the configuration
mode after the parameters have been configured with the "Modbus Configurator" program.
Additional settings for the 4...20 mA operating mode beyond the scope of the "Modbus Configurator"
option are possible using the Report 2 program. If the user intends to use the Modbus mode of
operation, the probe must be switched to Modbus mode after the parameters have been configured
with the "Modbus Configurator" program.
The measuring range for 1/100th of an integer unit with sign is between -32767 and 32767 units.
Exceeding this range results in a skewed reading.
In case of pressure readings in binary format "Signed 16-bit int", the basic unit must be selected so that
100 times the pressure value expressed in it does not exceed the above range.
At all transmission speeds (especially at 115200 bps), a 120 Ω matching resistor should be used, which
by default is included via a jumper in the transmission circuit between the "Digital" A and B outputs
(Aplisens PP-Modbus boxes are factory equipped with a 120 Ω resistor).
Revision 01.A.001/2021.09
EN.IO.SGE.25.MODBUS
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