https://cablematic.com/en/products/rs485-module-8-analog-input-voltage-io-brainchild-8aiv-TJ011/
RS485 Module 8 analog input voltage (IO BrainChild 8AIV)
- Analog inputs: 8.
- Type of entry: single-ended.
- Input voltage: 0 to 10 VDC/0 to 5 VDC.
- Offset by switch: 2 VDC (0-10)/1 VDC (0-5).
- 12-bit resolution (0 to 4095).
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- Analog inputs: 8.
- Type of entry: single-ended.
- Input voltage: 0 to 10 VDC/0 to 5 VDC.
- Offset by switch: 2 VDC (0-10)/1 VDC (0-5).
- 12-bit resolution (0 to 4095).
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More info
BrainChild brand module with RS485 interface that has 8 isolated voltage analog inputs. Module to be used with HMI, PLC or SCADA via Modbus RTU protocol. Each channel has a terminal connection and an LED indicating the status of the channel. It is possible to download the BrainChild IO Studio Software for PC software that allows you to configure communication with the module. The module is presented in housingplastic and DIN rail fastening system.
Specifications
- Analog inputs: 8.
- Type of entry: single-ended.
- Input voltage: 0 to 10 VDC/0 to 5 VDC.
- Offset by switch: 2 VDC (0-10)/1 VDC (0-5).
- 12-bit resolution (0 to 4095).
- Sampling frequency: 12.5 samples/s.
- Input impedance: 20 Kohms.
- Derivative: 50ppm/deg.C.
- Accuracy: 0.2% span.
- Isolation: 1,500 Vrms.
- LED status indicator for each channel.
- Power supply (not included): +12 VDC to +24 VDC.
- Watchdog timer.
- Adjustable temporary watchdog from 1 to 255 s.
- Mounted in an easily portable plastic housing and compatible with the DIN rail mounting system.
- It has a lock connection systemue of terminals for power and data.
- 2-wire communication interface compatible with the RS485 protocol that allows up to 128 connected to the same RS485 network.
- Baud rate: 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bps.
- Designed to be used with HMI, PLC or SCADA and compatible with the Modbus RTU protocol.
- Modbus address configuration through dip-switch (allows 127 directivesMobbus).
- Module size: 23 x 109 x 98 mm.
- Weight: 105 g.
- Available for free download BrainChild IO Studio software for configuration of Modbus modules in the RS485 network. Once the module is detected it is possible to visualize the data in real time and perform basic checks on the module.
- BrainChild Data Acquisition Studio (DAQ Studio) comp software availableatible with module based on Modbus that allows integral management (Reference #TJ51).
- Gross Weight: 130 g
- Number of packages: 1
Technical terms
- Impedance
- LED
- RS485
- DIN
- PLC
- VDC
- DIN Rail
Impedance (Z) is the total opposition that a circuit offers to alternating current (AC) flow when a specific voltage is applied.
Unlike simple resistance, impedance is a complex quantity comprising resistance (the real part) and reactance (the imaginary part, representing inductive or capacitive effects). In the frequency domain, impedance is represented as a phasor, accounting for both magnitude and phase shift between voltage and current. In DC circuits, impedance reduces to pure resistance with zero phase angle.
| Parameter | Technical Spec |
|---|---|
| Symbol | Z |
| Unit | Ohm (Ω) |
Impedance management is critical in high-speed hardware design and signal integrity. In modern PCB manufacturing, controlled impedance ensures that high-frequency signals reach their destination without reflections, which is vital for PCIe or DDR5 performance.
Complex Domain Analysis
Mathematical modeling of impedance using the j-operator allows engineers to optimize filter performance and resonance characteristics in electronic systems.
Key Advantages
- Maximum power transfer through impedance matching.
- Minimized signal reflections in high-frequency transmission lines.
- Improved electromagnetic compatibility (EMC).
Note: Impedance is the cornerstone of modern AC circuit theory and high-frequency design.





