Modbus RTU Octal Relay Module RS485 / TTL UART 8 inputs 8 Outputs Switch Board
$41.54
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Size Conversion
Inches
Centimeters
Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
Manual:Click here to open
Feature
1. Onboard mature and stable STM8S103K3T6 MCU and MAX485 level conversion chip
2. Communication protocol:support standard Modbus RTU protocol
3. Communication interface:support TTL UART interface with RS485 / 5V level
4. Communication baud rate:4800/9600/19200, default 9600bps, support to save after power off
5. The signal range of optocoupler input:DC3.3-30V (this input cannot be used for relay control)
6. Output signal:relay switch signal, support manual, flash off, flash off mode, flash off / flash delay base is 0.1S, maximum flash off / flash time can be set to OxFFFF * 0.1S = 6553.5S
7. Device address:range 1-255, default 255, support to save after power off
8. Baud rate, input signal, relay status, device address can be read using software / command
9. On-board 8-channel 5V, 10A / 250v AC, 10A / 30vDC relay, which can be continuously attracted 100,000 times, with diode bleed protection, short response time
10. Onboard relay switch indicator
11. STM8 SWIM program is reserved for programming, supporting customers to download their own firmware for secondary development
12. Power supply voltage:DC7-30V, 5.08mm terminal power supply
Package includes
1 x Realy board
1. VCC, GND:DC7-30V 5.08mm power input terminal
2. DC3.3-30V optocoupler signal input
IN1-IN8:Positive channel 1-8
GND_IN:Channel 1-8 common negative
3. A+, B-:RS485 communication interface, A +, B- are connected to A +, B- of external control terminal respectively
4. 5V, SWIM, GND, NRST:STM8 SWIM program download port
5. TXD, RXD, GND:TTL level UART communication interface, TXD, RXD, GND are connected to RXD, TXD, GND of the external control terminal, only support 5V level TTL module / MCU. Use wiring order suggestion:Modbus Power-Modbus module connects to TTL module-TTL module is powered on
6. RST:MCU reset button
7. Relay switch signal output
NO:Normally open, the relay hangs before pull-in, short-circuit with COM after pull-in
COM:Common
NC:Normally closed end, the relay is short-circuited with COM before pull-in, and hangs up after pull-in
Weight | 0.154 kg |
---|
Customers Also Viewed
5pcs ESP-32S Matching Adapter Board WIFI bluetooth Module ESP-WROOM-32 Module for DIP
$9.84Smart ModuleAdd to cartFeaturesESP-32S supporting adapter board, 2.54mm pitch, lead RESET and IO 0 port, can be inserted into the breadboard, use DuPont wire leads, etc., to facilitate development and debugging.Package Included5 x ESP-32S Matching Adapter Board
5 Channel Flame Sensor Module Analog Dgital Dual Output Fire Extinguishing Robot Flame Alarm System Module
$13.11Sensor & Detector ModuleAdd to cartFeatures1.Using a five-way flame sensor design, the detection range is wide (the detection range of a common single flame sensor is about 30°, and the range is gradually reduced as the distance increases, the detection range of this product is greater than 120°)2.Can output digital signals (high and low level), easy to use3. can output …
600W Mini 2CH HiFi Digital Audio Stereo Amplifier Bass bluetooth FM Radio Amplifiering Equipment
$109.34Switch AccessoriesAdd to cartSpecificationsColor:BlueType:Support bluetoothInput voltage:220V-240V 50/60Hz 12V(in car)Plug:US plugRated power:80W+80WPeak power:300W+300WChannel:2 CHLoad impedance:4-16ΩSNR:>90 dbFM frequency:88-108MHzDistoration rate:0.05%Frequency:20Hz-20KHz(±3dB)Total harmonic distortion:less than 0.5% (normal operating conditions)Signal input sensitivity:200MV (±30MV)MIC input sensitivity:9mV (±2mV)Record level output:1VAuxiliary output level:1VSensitivity:0.25mV-220mVRC power supply:CR2052 battery(built-in)Features-Mini HIFI digital bluetooth audio power amplifier.-SD Card, U disk, MP3 format play, support bluetooth wireless connection.-Supports FM stereo radio.-Two microphone input …
Reviews
There are no reviews yet.