Industrial Scale Module – MW-01-1 Weighing Module
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Description
Industrial Scale Module – MW-01-1 Weighing Module
Overview
Weighing module MW-01 is designed as a response for the growing market demand for industrial weighing systems based on load cells, where the weighing platforms are located in large distance from a controlling terminal.
Depending on the needs, communication with the module can be conducted via RS485, RS232, Ethernet, or Profibus. Module MW-01 series is intended to coooperate with terminals PUE 5, PUE 7 series or a PC.
The MW-01 enables full operation of PLC programmable controllers which communicate through communication protocol Modbus class 0.
The MW-01 can operate in one of three modes:
- RS484 – RTU, (hardware interface RS485, frame RTU),
- TCP/IP – RTU, (hardware interface Ethernet, frame RTU),
- TCP/IP – Open ModBus, (hardware interface Ethernet, frame Open Modbus).
Applications:
Major applications of the weighing module MW-01:
- Weighing systems which may be supervised by master computer system owing to comunication established using Ethernet interface.
- Connecting a higher number of weighing platforms to indicators and terminals;
- Application in checkweighers owing to high processing power of up to 1000 measurements per second;
- Application in dosing systems.
Construction and functions:
Weighing module features metal housing. Signal cables are mounted through a cable gland. Communication with external peripherals is realized through one of four interfaces: RS485, RS232, Ethernet or Profibus.
Technical capabilities:
- Interfaces: RS232, RS485, Ethernet, ProfiBus;
- inputs / outputs: 2 inputs, 3 outputs (2 contractor and 1 transistor);
- Power supply of the weighing module: 8 ÷ 30V DC;
- Quantity of divisions from converter: up to 223 (8388608);
- Sampling rate: up 1000 samples/sec (od 6,25 do 3840);
- Maximum signal input: 25mV (option to introduce change of ranges);
- Impedance of load cell: 80 ÷ 1200 (option of limiting to 150 ÷ 1200);
- Power voltage of load cell: 5V DC;
- Working temperature range of weighing module: -10°C ÷ +40°C.
- Indended for static weighing of up to 10000 e;
- Intended for dynamic weighing with suggested samplling rate of up to 1000 SPS;
- Possibility of simple dosing with one or two thresholds (bulk and fine dosing);
- Possibility to design weighing systems operating in checkweighing mode.
Datasheet
| OIML Class | III |
| Maximum quantity of verification units | 10 000 e |
| Maximum load cell impedance | 1200 Ω |
| Minimum load cell impedance | 80 Ω |
| Minimum volatge per verification unit | 0,5 µV |
| Connection of load cells | 4 or 6 wires + shield |
| Load cell excitation voltage | 5V DC |
| Maximum increase of signal | 19,5 mV |
| IP rating | IP 66 |
| Housing | steel |
| Max number of platforms | 1 |
| RS 232, RS 485 transmission speed | RS 232, RS 485: 57600 bps |
| Power supply | 8÷30V DC |
| Operating temperature | -10 ÷ +40 °C |
| Communication interface | RS 232, RS 485, Ethernet |
| Multiple range | YES |
