PM822
1 x RS232
1 x RS485/RS422
Ethernet + WiFi
Modbus TCP to RTU/ASCII
OverviewSetupSpecificationsModels ComparisonOrdering InformationInquiryResources
Scada or PC sends Modbus TCP commands over Ethernet or WiFi to obtain data from Modbus RTU devices.
Easy setup via web browser
System setup
Network setup
Serial parameters setup
Modbus parameters setup
| CPU | MT7688AN MIPS CPU , 580 MHz |
| RAM | 128M Bytes DDR2 RAM |
| ROM | 32M Bytes Flash ROM |
| Operating System | OpenWRT Linux OS |
| Ethernet | Port Type : RJ-45 Connector x 1 Speed : 10 /100 M bps ( Auto Detecting ) Protocol : ARP , IP , ICMP , UDP , TCP , HTTP , DHCP Protocol ：PPPoE , DDNS , NTP , FTP , Telnet Mode : TCP Server / TCP Client / UDP Setup : HTTP Browser Setup (IE & Netscape) , Console Security : Setup Password Protection : Built-in 1.5KV Magnetic Isolation |
| WiFi | 2.4G WiFi IEEE 802.11 b/g/n Support AP / Station |
| Serial | Port 1 : 1 x RS232 ( RS232 RX/TX only ) Port 2 : 1 x RS422/485 ( Surge Protect ) Speed : 300 bps ~ 230.4 K bps Parity : None , Odd , Even , Mark , Space Data Bit : 5 , 6 , 7 , 8 Stop Bit : 1 , 2 RS232 Pins : Rx , Tx , GND RS422 : Rx+ , Rx- , Tx+ , Tx- ( Surge Protect ) RS485 : Data+ , Data- ( Surge Protect ) 15KV ESD for all signals |
| Modbus function | Modbus TCP to RTU Slave Modbus RTU Master to TCP Slave Modbus TCP to ASCII Slave Modbus ASCII Master to TCP Slave |
| Setup | Easy setup via web browser |
| Master TCP | 8 simultaneous TCP Master 32 simultaneous Request for each TCP Master |
| Watch Dog function | Yes |
| Power supply | DC 9~32 V , 1000 mA 1000mA@12V, support DC Jack & Terminal Input |
| PoE (option) | Power over Ethernet 802.3 af (option ) |
| LED Indicator | SYS (PWR) , LAN , RX , TX |
| Operating Temperature | -20℃〜70℃ |
| Storage Temperature | -25℃〜80℃ |
| Dimension | 180 x 110 x 30 mm ( W x D x H ) |
| Weight | 350 g |
| RoHS compliance | Yes |
| Approvals | EMC : FCC Class A, CE Class A |
| Warranty | 1 year |
| Item | Ethernet | WiFi | Description |
| PM822 | Yes | Yes | Ethernet+WiFi Modbus TCP to 2 Serial Ports Modbus RTU/ASCII |
| PM822E | Yes | No | Ethernet Modbus TCP to 2 Serial Ports Modbus RTU/ASCII |
PM822 / PM830 / PM830L / PM834
| File | Description | File size |
|---|---|---|
CvIotFinder Setup 1.0.9
|
|
26 MB |
|
Virtual COM Utility - VSerPort 2.8.1
|
|
2 MB |
PM822_User_Manual_201808a_EN
|
|
1 MB |
|
PM822 PM830 example polling data from RTU sensor connected on RS485
|
|
574 KB |
|
PM834_User_Manual_201808a
|
|
1,014 KB |