[Type d'acquisition]:Analogique
[Plage d'acquisition]: 4~20mA
[Type d'interface]: RS485
[Nombre de canaux d'acquisition]:2 canaux
[Poids net du produit]: 242±5g
[Introduction]:E820-DTU (2I2-433L) est un dispositif de contrôle à distance prenant en charge le suivi, le contrôle et la collecte de quantités analogiques.La coque adopte un revêtement à trois niveaux : antifongique, anti-humidité et anti-sel. En mode de contrôle et de collecte, il prend en charge le protocole Modbus RTU. Ce produit est facile à utiliser, il peut être intégré dans les systèmes des utilisateurs afin de réaliser un contrôle sans fil à distance via la bande 433 MHz.
| Pin No. | Pin Item | Function | Description |
|---|---|---|---|
| 1 | AI1+ | Analog signal input channel 1 positive | Analog signal input pin, forms input with AI1- |
| 2 | AI1- | Analog signal input channel 1 negative | Pair with AI1+ |
| 3 | AI2+ | Analog signal input channel 2 positive | Analog signal input pin, forms input with AI1- |
| 4 | AI2- | Analog signal input channel 2 negative | Pair with AI2- |
| 5 | RESET | Reset button | Reset device address by long-pressing 5s |
| 6 | 485_A | RS_485 A | RS_485 A connects with device A connector |
| 7 | 485_B | RS_485 B | RS_485 B connects with device B connector |
| 8 | GND | Wire pressing power input negative | Power GND |
| 9 | VCC | Wire pressing power input positive | Power input end, DC 8V~28V, 12V/24V recommended |
| 10 | PWR/ACK | Power/reset successful indicator | Dual-color indicator, blue represents power, green represents reset successful. |
| 11 | A1 | RF data TX/RX indicator | Dual-color indicator, blue represents data TX, green represents data RX (channel 1) |
| 12 | A2 | RF data TX/RX indicator | Dual-color indicator, blue represents data TX, green represents data RX (channel 2) |
| 13 | ANT | Antenna connector | 433MHz antenna |
| 14 | DIP switch | Mode selection | M1M0(00, 01, 10, 11) |
| 15 | AO2- | Analog signal output channel 2 negative | Pair with AO- |
| 16 | AO2+ | Analog signal output channel 2 positive | Analog signal output pin, forms output with AO2- |
| 17 | AO1- | Analog signal output channel 1 negative | Pair with AO+ |
| 18 | AO1+ | Analog signal output channel 1 positive | Analog signal output pin, forms output with AO1- |