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tMPC-04 - Pulse counter with Modbus interface
The tMPC-04 is a 4-input pulse counter with a Modbus RTU interface. Supported by LK4.
99.00
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The tMPC-04 is a 4-input pulse counter with a Modbus RTU interface designed for use with meters that provide pulse outputs.
The device can be used with electricity meters, but it can also measure other quantities such as water or gas consumption. Conversion to these units is based on user-defined coefficients (e.g. pulses per kWh), with the default value set to 1000 pulses per unit.
Technical specifications
| Power supply | 5 - 12 V DC (connector) 5 V (USB) |
| Pulse inputs | 4 inputs |
| Input level thresholds | Low = 0 – 1.0 V, High = 1.3 – 25 V |
| Maximum counting speed | ~2000 Hz (up to 4000 Hz without power estimation) |
| Interfaces | Modbus RTU (RS485), Serial (over USB; 115200 baud) |
| Dimensions | 74 × 40 × 23 mm (without DIN handle) |
| Weight | 42 g |
Default setup
Out of the box, the tMPC-04 is pre-configured with:
- Modbus Slave ID: 1
- Pulse Conversion Factor: 1000 pulses per unit (e.g., imp/kWh) for all 4 inputs
If these settings match your energy meters, the device is ready for immediate use.
More information about the device, usage, and custom Modbus module configuration for LK4/LK3.5+ is available at https://tinycontrol.pl/en/tmpc-04/.
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