Modbus RTU analog input module 8 × 0-20 mA 7-36 V DC - Waveshare 25821
ID: 1197630
5902186301917
zł101.34
Tax included
zł82.39 tax excl.
8-channel analog acquisition module with default current measurement mode (0–20 mA), designed for industrial applications requiring stable and precise data acquisition. Compatible with current sensors, it supports RS485 communication and the Modbus RTU standard, allowing easy integration with SCADA systems and PLC controllers. Galvanic isolation and noise immunity make it suitable for environments with high EMC requirements. Ideal for industrial process monitoring, environmental parameter measurement, and building automation.
Description
8-channel industrial module for analog signal acquisition using the Modbus RTU standard, designed for current input in the 0–20 mA range. Supports RS485 communication and simultaneous acquisition from multiple channels. A built-in digital filtering algorithm with oversampling increases signal stability. Wide input voltage range (7–36 V DC) and dual galvanic isolation—for both power and signals—ensure high reliability in industrial environments. The module includes surge, overcurrent, and electrostatic discharge protection, making it resistant to interference. DIN rail mounting facilitates integration with existing control infrastructure.
Properties
- 8-channel analog current signal acquisition (default 0–20 mA)
- RS485 communication, Modbus RTU protocol
- 12-bit resolution, accuracy ≤3%
- Data update rate: 25 Hz
- Configurable inputs: differential or single-ended
- Configurable device address (1–255)
- Power supply: 7–36 V DC, built-in voltage regulator
- Dual galvanic isolation (power and signals)
- Built-in self-resetting fuse, TVS, and protection diode
- DIN 35 mm rail-mountable enclosure
- LED indicators for MCU status and RS485 transmission
1197630
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Other products in the same category (16)
Compact module that allows easy changing of I2C sensor addresses, allowing coexistence of multiple devices with the same address on one bus. With DIP switches and optional soldering resistors, users can easily configure sensor addresses without having to modify the code or use external components. DFRobot DFR1185
zł21.80
24h
Available quantity: 4
Available
8-channel module with digital inputs/outputs with an operating voltage range from 5 to 36 V. It communicates via the RS485 interface and supports communication within the Modbus RTU protocol. The board is enclosed in a housing that can be mounted on an industrial rail. Waveshare Modbus RTU IO 8CH
zł91.99
24h
Available quantity: 21
Available
Module with 32 IO pins and 14 analog inputs. It communicates via the RS485, USB or Ethernet interface and supports the Modbus RTU/TCP protocol. Numato Lab NLGM1002-A
zł1,572.59
3 weeks
No product available!
Adapter dedicated to the Nintendo Wii Nunchuck. It allows you to connect the controller to the development board via the I2C interface. Adafruit 4836
zł16.47
24h
Available quantity: 1
Available
KAmod I2C-Mini Out8 enables easy expansion of microprocessor systems with eight switching outputs for voltages and currents typical of low-voltage load control. Compatibility with the I2C bus and the ability to connect up to 8 modules in a single network make it an ideal solution for automation systems, lighting and power control, and other applications requiring flexible control of multiple circuits.
zł18.86
24h
Available quantity: 181
Available
Module with 64 IO pins and 32 analog inputs. It communicates via the RS485, USB or Ethernet interface and supports the Modbus RTU/TCP protocol. Numato Lab NLGM1003-A
zł2,064.33
3 weeks
No product available!
An 4-channel I2C expander module, which is based on the TCA9546A chip. It allows connecting several devices with the same address to a single I2C interface. Adafruit 5664
zł20.02
4 weeks
No product available!
Crowtail – I2C Hub 2.0 expands the I2C bus with three additional ports, enabling the simultaneous connection of multiple devices in the Crowtail system. Useful in projects with a larger number of I2C modules.
zł6.90
24h
Available quantity: 8
Available
32-channel IO expander with 7 analog inputs with 10-bit resolution. Communicates via USB interface. It has compact dimensions, making it suitable for small devices. Version with connector at the bottom. Numato Lab GP320002-B
zł489.00
3 weeks
No product available!
8-channel module with voltage analog inputs ranging from 0 to 10 V. After reconfiguration, it enables measurement of voltage in the range from 2 to 10 V or current in the range from 0 to 20 mA or 4 to 20 mA. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in a housing that can be mounted on an industrial rail. Waveshare Modbus RTU Analog Input 8CH (B)
zł111.34
24h
Available quantity: 1
Available
16-channel PoE GPI/GPO module enabling connection of a PC to other electronic circuits via a network. It does not need a separate cable for power and data transmission. It can be controlled via a simple web interface or Telnet. Numato Lab NLGP1001-A
zł1,299.00
3 weeks
No product available!
16-channel IO expander with 10 analog inputs. The board communicates via the Ethernet interface. Numato Lab GPETH160001
zł330.81
24h
Available quantity: 3
Available
Module with 16-channel PCF8575 IO expander controlled by the I2C interface. Equipped with a STEMMA QT connector. Adafruit 5611
zł31.66
24h
Available quantity: 3
Available
Module with 8 inputs for data acquisition from DS18B20 temperature sensors. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3066ADAM
zł212.73
4 weeks
No product available!
Module with 8 digital inputs and 4 relays with a maximum switching current of 2 A. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP8024ADAM
zł222.81
24h
Available quantity: 3
Available
Module with 16 digital inputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP8026ADAM
zł241.40
4 weeks
No product available!
8-channel analog acquisition module with default current measurement mode (0–20 mA), designed for industrial applications requiring stable and precise data acquisition. Compatible with current sensors, it supports RS485 communication and the Modbus RTU standard, allowing easy integration with SCADA systems and PLC controllers. Galvanic isolation and noise immunity make it suitable for environments with high EMC requirements. Ideal for industrial process monitoring, environmental parameter measurement, and building automation.