MODBUS RTU Module for Data Acquisition of Analog Voltage and Current Thermistor Input | Обустройство дома

I. overview S7100 has eight channels of analog input. It uses 12-bit AD converter with 100k sampling rate. Each input channel has lightning protection and electrostatic protection. The input signal can be used not only for 0-10V, 0-5V, 4-20mA common signal, but also for NTC thermistor, collector output and dry contacts. The pulse counting value of water meter output by dry reed or Hall sensor exists in FLASH. These signals can be combined arbitrarily and input at the same time. The output bus is RS232/ZIGBEE. ZIGBEE can realize point-to-point, point-to-multipoint, multipoint-to-multipoint data transmission, forming star, point-to-point, mesh network, and maximizing the visual distance communication distance to 2 km. The design also uses external watchdog, surface mounting technology and single point common ground technology to improve system stability. II. Technical parameters Resolution------------------------------------------------------------------------------------------------------------------------- 12 bits Input channel-------------------------------------------------------------------------------------------------------------------------------------- 8 Input signal-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Input protection-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Accuracy------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Zero drift------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The acquisition rate is 95 times per second (8 channels) and 710 times per second (1 channel). [channel number configurable] Output - ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- RS485/Zigbee Output protection-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Power supply - --------------------------------------------------------------------------------------------------------------------------------------- 12 ~ 24V (AC/DC), standard 24VAC Power consumption -------------------------------------------------------------------------------------------------------------------- < 0.6W Working temperature----------------------------------------------------------------------------------------------------------------------------------- 20 ---------------------------------------------------------------- Storage temperature------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 40 ------------ Relative humidity--------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5% - 95% RH (no condensation) Size------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3. Wiring instructions 1. Input Ai1: Channel 1 Signal Input Ai2: Channel 2 Signal Input Ai3: Channel 3 Signal Input Ai4: Channel 4 Signal Input Ai5: Channel 5 Signal Input Ai6: Channel 6 Signal Input Ai7: Channel 7 Signal Input Ai8: Channel 8 Signal Input AGND: Public End, Internal Connection 2, power supply DC: 24V cathode GND cathode Note: Reverse connection protection Exchange: Negative and Positive 3. RS232 output, providing RS232 to TTL cable TXD: TXD, TTL Level of Single Chip Microcomputer RXD: RXD, TTL Level of Single Chip Microcomputer VCC:5V power supply to RS232 cable GND: Systematic 4. Parametric Reset The jumper jumps at the INIT and GND terminals. The following parameters are restored to factory value. N Address: 254 N baud rate: 19200 N channel: enable all channels N units: AD collects raw data values N filter coefficient: 10 The jumper jumps at the NULL end, using user configuration parameters 5. Man-machine interface Heart: When the system works, this LED flashes, representing living. Comm: This LED flickers when communicating NET: Liang indicates that S7100 joins ZIGBEE network RUN: ZIGBEE in Module Working State