Modbus measuring instruments for analogue signal 0/2 - 10 V and/or 0/4 - 20 mA

TDE Instruments DPM72 Modbus-Messeinheit für Prozessignale

Unique, innovative, and multifunctional: the multifunctional measuring units Digalox® DPM72-MPP, -MPPV and -MPPA with Modbus RS485 interface are characterised by extensive functions and configurability. Depending on type the measurement modes analogue signal (2 ×) 0/2 to 10 V and/or (2 ×) 0/4 to 20 mA DC are supported. The Modbus interface ensures comfortable individual configuration of the devices as well as transfer of measuring data in real time. Therefore, the DPM72 measuring instruments are versatile and suitable for a wide range of industrial applications. The multifunctional measuring devices are particularly in demand in the area of monitoring of machine and operating data and especially suitable for retrofitting, as they can be easily integrated into existing systems thanks to the RS485 Modbus protocol and are able to easily communicate with Modbus devices from other manufacturers. Additionally, they can be attached to DIN rails as well as to other backgrounds through corresponding boreholes in the housing.

Extensive adaptability via software
Using the "Digalox® Manager" configuration software, the measuring devices can be set up individually. Once set up, the DPM72 will transmit your measuring data reliably and in real time. The values can be viewed and evaluated graphically within the software and exported as CSV.

Switching outputs
As individually adjustable threshold values ​​are reached, two galvanically isolated alarm outputs enable the device to trigger an alarm as well as to perform switch-on or switch-off operations.

Modbus interface
The RS485 Modbus interface of the DPM72 measuring devices ensures both configuration and transmission of all measured values. The RS485 Modbus protocol corresponds to the established industrial standard, which means that the DPM72 measuring devices with Modbus interface can be universally combined with existing Modbus devices from other manufacturers. Above all, this enables older or technically obsolete machines to be modernised easily (retrofitting) without having to replace them, which can be expensive and time-consuming.

Specification

  DPM72-MPP-RS485-DIN DPM72-MPPA-RS485-DIN
DPM72-MPPV-RS485-DIN
Supply 12 - 24 V AC/DC ± 10 % 12 - 24 V AC/DC ± 10 % 12 - 24 V AC/DC ± 10 %
Power consumption max. 2.4 W max. 2.4 W max. 2.4 W
Measuring range voltage ±30 V DC, 20 V AC --- ±30 V DC, 20 V AC
Accuracy voltage ±0.5 % true RMS --- ±0.5 % true RMS
Internal resistance voltage 102 kΩ --- 102 kΩ 
Measuring range ampere 20 mA AC/DC (max. 100 mA) 20 mA AC/DC (max. 100 mA) ---
Accuracy ampere 0.5 % true RMS ±0.5 % true RMS ---
Internal resistance ampere 6.2 Ω 6.2 Ω ---
Recording of measurement 3 minutes to 14 days 3 minutes to 14 days 3 minutes to 14 days
Alarm outputs 2 optocouple outputs max. 30 V, 50 mA 2 optocouple outputs max. 30 V, 50 mA 2 optocouple outputs max. 30 V, 50 mA
Interface RS485 Modbus RTU protocol RS485 Modbus RTU protocol RS485 Modbus RTU protocol
Operation temperature 0 °C to +50 °C 0 °C to +50 °C 0 °C to +50 °C
Storage temperature -20 °C to +70 °C -20 °C to +70 °C -20 °C to +70 °C
Protection front IP65 when mounted with gasket (separately available)  IP65 when mounted with gasket (separately available)  IP65 when mounted with gasket (separately available) 
Products in the TDE shop DPM72-MPP-RS485-DIN will be in the TDE shop soon DPM72-MPPA-RS485-DIN will be in the TDE shop soon DPM72-MPPV-RS485-DIN will be in the TDE shop soon