Apg MPX Slave Sensor user manual Bedienungsanleitung PDF herunterladen (Seite 9)

Rev. B, 4/13 MPX Series Magnetostrictive Level Sensors

Automation Products Group, Inc.

APG...Providing tailored solutions for measurement applications

Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]

• Sensor Communicaons

Modbus

(RS-485)

The MPX-E1 and MPX-R1 series ulizes standard Modbus RTU protocol (RS-

485). The sensor can only operate as a slave device. For more informaon

about Modbus RTU, please visit www.modbus.org.

The sensor will transmit at: 9600 baud, 8 bits, 1 Stop Bit, No parity (allow a

minimum delay of 300 ms between transacons).

12-24 Vdc

Out

Power Source

(14- 24 Vdc)

Sensor

RST-4100

Programming Module

Wiring

(MPX-E2, MPX-R2, MPX-E3, and MPX-R3)

To USB

Out 24V

RST-4100

Load Resistor

(100 Ω to 700 Ω)

−

Note: a minimum of

14 Vdc is required to

establish communications

4-20 mA (requires RST-4100 module)

MPX-E2, MPX-R2, MPX-E3, and MPX-R3 sensor versions require the RST-4100

module and the APG Modbus soware for programming.

A load resistance is required at the DC Common (GND) end of the current

loop in order to establish communicaons. The RST-4100 is wired in parallel

between the power source and the sensor, with the load resistance between

the “Out” leg connecon and the power source ground (as shown below).

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Apg MPX Slave Sensor user manual Bedienungsanleitung Seite 9