1U_1.5U 485 PDU

1U_1.5U 485 PDU Instruction Manual  V1.3

I、Overview
The intelligent 485 PDU monitoring device is applicable to various electronic and electrical devices such as servers, switches, and cabinets. It can monitor the power consumption information of these devices and environmental information (optional), and supports remote access.
Based on intelligent power management, the intelligent 485 PDU is equipped with multiple precision sensors to detect the current, voltage of each interface in real - time, as well as ambient temperature and humidity (optional). Through integrated circuits and embedded firmware, it can autonomously analyze the rationality of power consumption and issue over - limit alarms, and the results are displayed on the LCD screen.
This product can also achieve cascading functions through the RS485 interface, fully supporting the Modbus communication protocol. It can cascade up to 64 devices at most. At the same time, it can communicate with the host computer. Through the host computer software, it can manage all alarm reminders in real - time, and also provide large - scale data analysis and comparison to achieve the goals of collective energy conservation and safe power consumption.
During product installation, we can easily complete wiring and function testing through the RS485 bus. We can also set the serial port baud rate, monitoring, etc. through online or offline methods.

II、Interface Definition



III、Structure Dimensions



IV、Interface Wiring Diagram




V、Technical Parameters

VI、Panel Operation Instructions
Pages Switching
           By pressing the up or down page - turning keys, the screen display will cycle through the following pages:：


Parameter Setting
            Long - press the Set key to enter the parameter setting interface, where parameters such as the RS485 address and baud rate of the PDU can be set. For example, the steps for setting the address are as follows:
     Long - press the Set key to enter the address setting interface
     Use the Up and Down keys in combination to set the appropriate address, then short - press the Set key to confirm. Long - press the Set key to exit the setting.


VII、 Modbus Communication Protocol
The communication adopts the MODBUS RTU protocol. The data format of one frame is: 1 start bit + 8 data bits + 1 stop bit. The baud rate is 9600bit/S.

Table 1: Register Addresses and Data Communication Table for System Configuration Reading Parameters (Function Codes 03H for Reading, 10H for Writing)


Table 2: Register Addresses and Communication Data Table for System Read - Only Parameters (Function Code 03H, Read - Only)


Table 3: Register Addresses and Communication Data Table for Electrical Energy (Function Codes 03H for Reading, 10H for Writing)

Table 4: Register and Communication Data Table for Measured Electrical Parameters (Function Code 03H, Read - Only)

Table 5: Alarm Parameter Setting Registers (Function Codes 03H, 10H, Read/Write)