PID Controller – Signal converter DIN-rail mount DRR244


Programmable input, isolated analogue output, multi-voltage power supply, current transformer input, digital input, serial communication.

PID controller DRR244 stands out in the segment of rail-mounted controllers thanks to its flexibility and configurability that are summed up in a single ordering code.

The analogue input can be programmed for extensive range of temperature sensors (resistance thermometers and thermocouples) as well as for process signals mA/Volt (tipically pressure transmitters, humidity and flow sensors). 

The outputs can be selected as command/multiple alarm modes/analogue retransmission. Serial communication is RS485 with Modbus RTU/Slave protocol. The controller is equipped with extended range power supply  24 to 230V AC/DC with galvanic isolation from the network.

In addition to its function as heating/cooling PID controller, DRR244 controller also serves as a signal converter thanks to its galvanically isolated and relascalable analogue output, which can be used for process/setpoint  retransmission.

Fully programmable via RFID/NFC with MyPixsys App for quick set-up and optimal after sales support.

User friendly, multimedia support and traceability

the entire range of Pixsys products we provide technical support for installation, programming and operation via our online forum and via Skype.

For the complete range of Pixsys products we provide technical support for installation, programming and operation via our online forum and via Skype.

The interface of the PID controller DRR244 ensures that the product is easy to use and that the user is also supported by auxiliaries for programming such as MEMORY-CARD , LABSOFTVIEW programming software, App MyPixsys . 

PID tutorial videos on our youtube channel help the user programming the device.

As for the entire range of PIXSYS products, thanks to the QR code the traceability of the product is guaranteed for its entire life cycle; the information and documentation online can be also be accessed by reading the QR CODE that directs your mobile device to the product technical specs and verifies its warranty conditions.

Ordering codes

1 analogue input + 3 Relays + 2 SSR + 2 D.I. + 1 Analogue output V/mA + RS485 + CT / Supply 24..230V AC/DC

Technical data

4 modules, DIN43880, DIN-rail mount DIN EN50022
Power supply
24..230V AC/DC ±15% 50/60 Hz (galvanic isolation 2500V)
White LED Display 4 digits 0,5" + red LED 5 digits 0,3" (Alphanumeric)
Operating conditions
Temperature 0-45 °C, humidity 35..95 uR% (non-condensing)
Enclosure: Polycharbonate V0; Front: Silicon V0 self-exstinguishing
approx. 210 g
Enclosure and terminal blocks IP20
Quick set-up options
APP My Pixsys , Memory Card USB, LabSoftView software, EASY-UP codes
Extractable terminal blocks


1 analogue input
Resolution16bit, programmable for Thermocouples K, S, R, J, T, N, B (automatic compensation of cold junction -25..85°C, ±0,2% F.S. ±1 digit F.S.), Thermoresistances PT100, PT500, PT1000, Ni100, PTC1K, NTC10K (β 3435K), process signals 0..10 V (50000 points), 0/4..20mA (40000 points), 0..60 mV (25000 punti), potentiometer 1..150 KΩ (50000 points)
Sampling time
Programmable up to 2,1 ms (frequency up 470 Hz)
2 digital inputs
PNP, programmable for Setpoint change/ Hold/ Run/ StartTuning, Start -Stop/ configuration lock
1 Current transformer input
50 mA, 800 μs - 4096 points


3 Relays
Q1, Q2 5A - 250VAC resistive loads Q3 2A - 250VAC resistive loads
2 Digital outputs
12 / 24 V DC - 30 mA max
1 Analogue output
Selezione 4..20 mA (40000 points ± 0,2% F.S.) or 0..10 V DC (40000 points ± 0,2% F.S.) for command or retransmission PV / SPV
1 Auxiliary output
12/24VDC - max 30mA , to supply the sensor
Serial communication
RS485 Modbus RTU - Slave

Software data

Up to 6 setpoints
Control algorithms
ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time-proportioned, dead band. Manual/automatic control of output
Manual or automatic
Data protection
Lock command and/or alarm setpoints. Password to access configuration parameters
Alarm modes
Absolute / Threshold , Band alarm, Upper/Lower deviation. Retentive alarms, Activation delay. Loop Break Alarm
Dual PID action
Combined Heating/Cooling PID action, Dual PID
Rising gradient expressed as Degrees / Hour
Programmer function
Start/Stop pre-programmed cycle, 3 steps
Open/Close logic
Motorized valves control

User Manual - Video - Application Notes - Datasheet

DRR244 user manual - revD
English - Italian - Deutsch - Français
File modello/model 3D (PDF 3D - .STP)
English / Italian
PDF 3D - STEP (.stp)


<p>Dimensioni e installazione regolatore DRR 244 - Pixsys srl </p>

Dimensions and installation

<p>Schema di collegamento regolatore DRR 244- Pixsys srl</p>

Wiring plan