[Collection] :Analog
[Interface] :RS485/Ethernet
[I/O channel] :4-channel
[Interface] :Ethernet
[Size] :108*75*37mm
[Weight] :230.8±5g
[Introduction]:This chapter is a quick introduction to E821-RTU (0400-ETH). It is recommended that users carefully read this
chapter and follow the instructions before using the product. It will have a systematic understanding of the product, and users can also choose the one you are interested in according to your needs.
| Network parameters | Description |
| Ethernet Specification | RJ45，10/100Mbps |
| Network Protocol | IP、 TCP/UDP、 ARP、 ICMP、 IPV4 |
| IP acquisition method | Static IP, DHCP |
| DNS | Available |
| Hardware parameters | Description |
| Size (H*W*D) | 108*75*37mm |
| Weight | 230.8±5g |
| Working temperature | -20℃~+70℃ |
| Storage temperature | -40℃~+85℃ |
| Working humidity | 5%~95% |
| Storage humidity | 1%~95% |
| Working voltage | 8V~28V、8V/143mA、12V/98mA、24V/52mA、28V/45mA |
| Data interface | RS485：1200~115200bps/RJ45：100M |
| Software parameters | Description |
| Network type | Ethernet |
| Configuration command | Modbus TCP/RTU |
| Network Protocol | Modbus TCP/RTU |
| Working mode | Master mode, Slave mode |
| Data transmission mode | TCP/UDP |
| No | Item | Function | Description |
1 | RJ45 | Ethernet | tandard RJ45 interface, connected to device or PC |
2 | DC-IN | DC JACK 5.5*2.1mm | Power input, DC 8V~28V, 12V/24V recommended |
3 | DC-IN + | Crimping terminalpower input positive | Power input, DC 8V~28V, 12V/24V recommended |
4 | DC-IN - | Crimping terminalpower input negative | Power Ground |
5 | RS485 G | RS485 ground | Signal ground, can not be connected |
6 | RS485 A | RS485A | RS485 B is connected to device A |
7 | RS485 B | RS485 B | RS485 B is connected to device B |
8 | Grounding screw | Connecting to ground | Connecting to ground |
9 | Reset | Reset button | Long Press for 5S effective |
10 | AI1+ | Analog signal inputchannel 1 positive | Analog signal input channel, used in combination with the negative to collect analog data |
11 | AI1- | Analog signal inputchannel 1 negative | Analog signal input channel, used in combination with the positive to collect analog data |
12 | AI2+ | Analog signal inputchannel 2 positive | Analog signal input channel, used in combination with the negative to collect analog data |
13 | AI2- | Analog signal inputchannel 2 negative | Analog signal input channel, used in combination with the positive to collect analog data |
14 | AI3+ | Analog signal inputchannel 3 positive | Analog signal input channel, used in combination with the negative to collect analog data |
15 | AI3- | Analog signal inputchannel 3 negative | Analog signal input channel, used in combination with the positive to collect analog data |
16 | AI4+ | Analog signal inputchannel 4 positive | Analog signal input channel, used in combination with the negative to collect analog data |
17 | AI4- | Analog signal inputchannel 4 negative | Analog signal input channel, used in combination with the positive to collect analog data |
18 | PWR | Power supply indication | Red after power on, long bright |
19 | NET | Ethernet connectionindication | Blue and green two-color LED, the blue LED is long bright after the Ethernet port TCP/UDP connection is successful.After power-on, the green LED is lit,indicating that it is initializing. |
20 | DATA/RST | Data indication/reset indication | Blue and green two-color LED, blue LED flashes when data is transmitted and received, green LED flashes 3 times after reset |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| 产品 型号 | Interface | Acquisition Type | TCP/IP | Ebyte Cloud | - | - | - | Size | Feature | 技术 手册 | 样品 购买 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E821-DTU(2I2-400SL) | RS485 | Analog | - | 4 working modes | - | - | - | 109*175*35mm±1 | 4-channel analog high-precision acquisition | ||
| E821-RTU(0400-ETH) | RS485 /Ethernet | Digital signal | Support | Support | - | - | - | 108*75*37 | Modbus TCP/RTU |
