VIPA System 200V IM Series, Руководство пользователя

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Manual VIPA System 200V
Chapter 8 Ethernet coupler
HB97E - IM - Rev. 06/29 8-23
This function enables the reading from a coupler word by word.
Command telegram
ModbusTCP-
Header Slave address Function code Address
Word
Number of
Words
x x 0 0 0 6
6Byte 1Byte 1Byte 1Word 1Word
Respond telegram
ModbusTCP-
Header Slave address Function code Number of
read Bytes
Data
1
st
Word
Data
2
nd
Word
...
x x 0 0 0
6Byte 1Byte 1Byte 1Byte 1Word 1Word
max. 126Words
This function allows to alter a Bit in your coupler. A status change happens
via "Status Bit" with the following values:
"Status Bit" = 0000h
→
Bit = 0, " Status Bit" = FF00h
→
Bit = 1
Command telegram
ModbusTCP-
Header Slave address Function code Address
Bit
Status
Bit
x x 0 0 0 6
6Byte 1Byte 1Byte 1Word 1Word
Respond telegram
ModbusTCP-
Header Slave address Function code Address
Bit
Status
Bit
x x 0 0 0 6
6Byte 1Byte 1Byte 1Word 1Word
Read n Words
03h, 04h
Write a Bit
05h
max. 255Byte