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Modulo Rs485

I 10 migliori prodotti di dicembre 2024
Ultimo aggiornamento: 1 dicembre 2024
JZK
JZK
JZK 5PCS TTL a RS485 modulo, 485 a porta seriale UART livello conversione reciproca, hardware controllo automatico del flusso, TTL Turn RS485 3.3V 5V
Spedizione gratuita
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85

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Amazon.it
#5

  • RS485TTL: questo modulo realizza la conversione reciproca tra segnale TTL e segnale RS485, non c'è bisogno di controllo "ricezione-invio", utilizzare questo modulo mentre si utilizza la porta seriale in modo semplice, compatibile con alimentazione da 3,3 V e 5,0 V, compatibile con segnale da 3,3 V e 5,0 V.
  • Ha RXD, TXD indicatore luminoso del segnale, monitor invia e riceve stato. Il pacchetto contiene: 5 pezzi TTL Turn RS485 modulo.
  • Capacità anti-interferenza, mentre il design più efficace 485 mine nel campo industriale e in ambienti difficili, la distanza di trasmissione fino a 1000 metri di 850 metri di cavo 2 * 1,5 per il test, si consiglia di utilizzare entro 800 metri, più di 800 metri, si prega di aggiungere ripetitori).
  • 【Funzionamento facile】 Considera pienamente il design di protezione contro i fulmini bus 485 e il design anti-inceppamento, trasmissione a lunga distanza sul campo, l'accesso laterale "terra" del modulo alla terra, può giocare un ottimo effetto anti-inceppamento e fulmine, bus 485 più sicuro; la trasmissione a breve distanza interna non può accedere alla terra.
  • L'utilizzo del design standard 2.54 pitch per facilitare lo sviluppo secondario. Con 120 ohm resistenza corrispondente, corto R0 per consentire resistenza corrispondente, trasmissione a lunga distanza del corto circuito proposto.
  • 8,19 € SU AMAZON
Waveshare
Waveshare
Waveshare 2-Ch RS485 To POE Ethernet Serial Server, 2-Channel RS485 Independent Operation, 2x POE Ethernet Port, Rail-Mount Industrial Isolated Serial Module, Bidirectional Transparent Transmission
Spedizione gratuita
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#8

  • [Primary function]bi-directional transparent data transmission between rs485 and ethernet. [Multi power supply options]support poe ethernet port power supply, suitable for ieee 802.3af poe standard. Support screw terminal and dc power port for power supply, dc 6~45v wide voltage range input
  • [Support ethernet port cascade]onboard 2-ch ethernet ports for communication and cascade. Either one can be used for dual serial server network communication, while the other one can be used for cascading or communication with other devices. [Rail-mount support]industrial-grade rail design, compact size, easy installation, cost-effective
  • [Modbus gateway support]suitable for modbus networking upgrade, can be used with specific configuration software. [Multi communication modes]supports tcp server/tcp client/udp multicast/udp mode. [MQTT/ISON to Modbus]more flexible conversion between different protocols
  • [Multi hosts roll-polling support]different network devices will be identified and responsed respectively, no more crosstalk issue while communicating with multi network devices. [User-defined heartbeat/registration packet]easy for cloud communication and device identification
  • [NTP protocol support]getting network time info for serial output or data upload. [Multi configuration methods]supports web browser configuration, obtaining dynamic ip via dhcp, dns protocol connected domain server address. [Multiple protection]safe and stable. [Aluminium alloy enclosure]aluminium alloy enclosure with sand blasting and anodic oxidation. Solid and durable, fashion and good hand feeling
  • 50,99 € SU AMAZON
Waveshare
Waveshare
Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply
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#10

  • Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically
  • Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
  • Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic. Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
  • Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability. Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle control
  • Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection. High quality relay, contact rating: ≤10A 250VAC/30VDC. Rail-mounted ABS plastic enclosure, easy to install, safe to use. Multiple LEDs for indicating the MCU status and signal transceiving status
  • 52,99 € SU AMAZON