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PVP250kW & PVP260kW Inverter

Installation & Operation Manual

these commands and their valid registers.

Read Holding Register

The Read Holding Register command is used frequently. Typically the Modbus master

continually reads the values from registers containing the desired information.

Command Information

Command

Layout

Modbus slave address nn (1-126)

Command number 03

First register MSB xx

First register LSB xx

Number of registers MSB xx

Number of registers LSB xx

CRC LSB xx

CRC MSB xx

Table 5-9 Format for Read Holding Register, command 03

Response Information

Response

Layout

Modbus slave address nn (1-126)

Command number 03

Number of bytes of data n

Fist register MSB xx

First register LSB xx

Second register MSB xx

Second register LSB xx

Nth register MSB xx

Nth register LSB xx

CRC LSB xx

CRC MSB xx

Table 5-10 Format for Read Holding Register, response to command 03

Write Single Register

The Write Single Register command is used to write to one of the command registers

found in Table 5-19. Using this command does not change the inverter’s data in registers

described in Table 5-15, Table 5-17, or Table 5-18.

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 128 129

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PV Powered PVP260kW Technical Information Seite 71