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Model EM731 PM230 PM822 PM830 PM834 PMQ822 PMQ830 PMQ830L PMQ830LG PD822M PD830M PD840M
Function Modbus Modbus Modbus Modbus Modbus+Isolation Modbus to MQTT Modbus to MQTT Modbus to MQTT Modbus to MQTT Modbus DIO Modbus DIO Modbus DI
OS RTOS Linux uCLinux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux OpenWrt Linux
CPU ARM Cortex M4 ARM 7 MIPS MIPS MIPS MIPS MIPS MIPS MIPS MIPS MIPS MIPS
CPU-Speed 120 MHz 80 MHz 580 MHz 580 MHz 580 MHz 580 MHz 580 MHz 580 MHz 580 MHz 580 MHz 580 MHz 580 MHz
SDRAM 256 KB 8 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB
Flash ROM 1 MB 4 MB 32 MB 32 MB 32 MB 32 MB 32 MB 32 MB 32 MB 32 MB 32 MB 32 MB
Ethernet 1 1 1 1 1 1 1 1 1 1 1 1
WiFi 802.11 b/g/n 1 1 1 1 1 1 1 1 1 1
Socket Connection 1 8 8 8 8 8 8 8 8 8 8 8
RS232/RS422/RS485 1 2 4 2 2 1 1
RS232 1 1 1 1 1
RS422/RS485 1 1 1 1 1
RS232/RS485 1 1
Data Logger V V
4G V
Digital Input 2 2 4
Digital Output 2 2
Baud Rate 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K 300 ~ 230.4 K
Watchdog V V V V V V V V V V V V
Utility / Web Page Setup V V V V V V V V V V V V
Power Input DC 9 ~ 30 V DC 9 ~ 24 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V DC 9 ~ 32 V
DIN-Rail Mounting V V V V V V V V V V V V
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