13
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
An APG RST-4100 Programming Module can be used in tandem with APG Modbus to program a single
MPX-E2/3 or MPX-R2/3 series sensor. Through APG Modbus, you can configure the 4 mA and 20 mA output
setpoints and calibration settings. If your monitoring equipment (PLC, etc.) can be configured to interpret
the 4-20 mA output(s) of the MPX as volume, then the MPX can be configured accordingly via APG Modbus.
See MPX-E/R2 & MPX-E/R3 Modbus Register Lists on pages 19 and 20.
However, the RST-4100 is not designed to be used for continuous monitoring of a sensor. After
programming your MPX sensor, the RST-4100 must be removed and the wiring returned to normal. See 4-20
mA Loop Wiring and 4-20 mA Programming Wiring on page 9.
•
4-20 mA Programming with RST-4100 and APG Modbus Software
•
Modbus Register Lists for MPX-E/R4
Input Registers (0x04)
Register
Returned Data
30299
Model Type
30300
Top Distance (raw float reading, in mm, unsigned)
30301
Bottom Distance (raw float reading, in mm, unsigned)
30302
Temperature Reading (in
0
C, signed)
30303-30304
Top Calculated (level, volume, etc., in selected Units)
30305-30306
Bottom Calculated (level, volume, etc., in selected Units)
30307
Version
NOTE
: The Calculated Readings will be returned without a decimal place. In order to
obtain the true result, the Decimal Place setting must be taken into account.
NOTE
: Input Registers 30300 and 30301 also display Loss of Signal error codes. See
Application Type (Holding Register 40402).