Panasonic KS1, Руководство пользователя

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④
Example of response from MODBUS TCP server to MODBUS TCP client
(Normal)
Item Transmit ID Protocol ID Transmit byte Transmit data
Ex. of setting value 0001 0000 0006 0103238D0001
Meaning
ID of
Transmit unit Fixed
value Number of byte
of transmit data Slave unit No.01
Function code 03
Data bytes 2
Data 0128(Hex)
Setting range 00 to FF Fix to 0000
・
This shows the response to send from MODBUS TCP server (KS1 Signal converter) to MOSBUS
TCP client after conversion 2 bytes data 0128(Hex) designated 238D send from serial
communication device number 01 to transmit data.
・
When it is MODBUS RTU, it converts to transmit data delete CRC, and when it is MODBUS ASCII,
it converts to transmit data delete LRC.
Transmit data is total 5 bytes and the number of byte of transmit data is 0005.
⑤
Example of response from MODBUS TCP server to MODBUS TCP client
(Error) Data error 1
Item Transmit ID Protocol ID Transmit byte Transmit data
Ex. of setting value 0001 0000 0003 00800A
Meaning
ID of
Transmit unit Fixed
value Number of byte
of transmit data
Error code 0A
・
This shows the example of error response when it send command without transmit ID, protocol ID
and transmit byte.
・
It response ”0A” in case of the below.
Transmit byte is under 6 bytes.
MOSBUS TCP command format error
MODBUS address in MODBUS TCP command error
Receive 4kbyte or more response from MODBUS slave unit.
(Error) Data error 2
Item Transmit ID Protocol ID Transmit byte Transmit data
Ex. of setting value 0001 0000 0003 01830B
Meaning
ID of
Transmit unit Fixed
value Number of byte
of transmit data
Error code 0B
・
It response "0B" when it doesn’t receive response such as there is no slave or serial line is
opened etc.
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