Pilz PNOZ mmc1p ETH - Manual (Page 13)

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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
3-3
3.3 Data transfer limits
3 Modbus/TCP - Data areas
3.3 Data transfer limits 3300 Data transfer limits 3- ModbusTCP_Grenzen Datenübertragung-PNOZmulti
The following table contains information on the maximum data length
per telegram that is supported:
Data transfer Max. data length per telegram
Read data
(Bit) FC 01 (Read Coils) 1 … 2000
FC 02 (Read Discrete Inputs)
Read data
(Bit) FC 05 (Write Single Coil) 1 Bit
FC 15 (Write Multiple Coils) 1 … 1968
Read data
(Word) FC 03 (Read Holding Registers) 1 … 125
FC 04 (Read Input Register)
Write data
(Word) FC 06 (Write Single Register) 1 Word
FC 16 (Write Multiple Registers) 1 … 123 Words
Read and write
data (Word) FC 23 (Read/Write Multiple Registers) Read 1 … 125 Words
Write 1 … 121 Words
INFORMATION
There may be some restrictions in data length, depending on the
device that is used. Please refer to the information stated in the
operating manual of the device you are using.