4-port Modbus RTU/ASCII to Modbus TCP gateway

PM834

4 x RS232/422/485
Ethernet
WiFi
Isolation protection
Modbus TCP to RTU/ASCII

Application DiagramSpecificationsModel ComparisonInquiryResources

Scada/PC sends Modbus TCP commands over Ethernet / WiFi to get Modbus RTU data

Send Modbus TCP commands over Ethernet / WiFi to get Modbus RTU data

CPU : MT7688AN MIPS CPU , 580 MHz
RAM : 128M Bytes DDR2 RAM
ROM : 32M Bytes Flash ROM
OS : OpenWRT Linux OS

Ethernet
Port Type : RJ-45 Connector
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 port
2.4G WiFi IEEE 802.11 b/g/n
Support AP / Station

Serial Ports x 4
Select any 4 mixed ports from 4 of RS232 ports and 4 of RS422/485 ports
Port : RS-232/422/485 * 4 port ( RS-232 RX/TX only )
Port : RS-422/485 * 4 ports ( 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
RS-232 Pins : Rx , Tx , GND
RS-422 : Rx+ , Rx- , Tx+ , Tx- ( Surge Protect )
RS-485 : Data+ , Data- ( Surge Protect )
15KV ESD for all signals

Software
TCP to RTU Slave
RTU Master to TCP Slave
TCP to ASCII Slave
ASCII Master to TCP Slave

Utility : Built-in Web server Setup, Easy Operation
Master TCP : 8 simultaneous TCP Master, 32 simultaneous Request for each TCP Master
Watch Dog Function
Power : DC 9~32 V , 1000 mA 1000mA@12V, support DC Jack & Terminal Input
Led Lamp : 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 Compliant
Regulatory Approvals : EMC : FCC Class A, CE Class A
Hardware Warranty : 1 year

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    PM822 / PM830 / PM830L / PM834

    File Description File size
    zip CvIotFinder Setup 1.0.9 IP search utility CvIotFinder
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    zip Virtual COM Utility - VSerPort 2.8.1 Virtual COM (VirtualSerialPort Console) with Quick Guide
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    pdf PM822_User_Manual_201808a_EN PM822 Ethernet+WiFi Modbus TCP to 2 Serial ports Modbus RTU/ASCII User's Manual
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    pdf PM822 PM830 example polling data from RTU sensor connected on RS485 PM822 PM830 example polling data from RTU sensor connected on RS485
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    pdf PM834_User_Manual_201808a PM834 4 Serial ports Ethernet+WiFi Modbus Gateway User's Manual
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