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11. Connection to other devices
11.4 Modbus TCP
1. The target address is analyzed (distributed among bytes 1 and 2)
a. Byte 1 = Hi; Byte 2 = Lo
2. The value being written is analyzed (distributed among bytes 3 and 4)
a. Byte 3 = Hi; Byte 4 = Lo
3. The value is written to the target register ((NET) marker word)
Response-PDU
If the value is written successfully, the request will be echoed once as a response
(→ Section "Write Single Registers 0x06:", page 550 Request PDU)
In other words, the response is identical to the corresponding request and is used for
confirmation purposes only.
11.4.2.6 Write Multiple Registers 0x10:
This function writes n * 16 bits to N registers ((NET) marker words in the easyE4)
Function Code
1 byte
0x10 ;Write Multiple Registers
Start address
2 byte
Must always be 1 less than the starting marker word
(if you want MW1 to be written to, there must be a 0
here)
Number of registers
2 byte
1-123 (0x0001 to 0x007B)
Bye Count
1 byte
2 * N
Register values being written
(marker words)
n * 2 byte
Values being written
Table 103: Request-PDU
n = Number of registers being written to
Response to the request being received
1. The starting address is analyzed (distributed among bytes 1 and 2)
a. Byte 1 = Hi; Byte 2 = Lo
2. The number of registers is analyzed (distributed among bytes 3 and 4)
a. Byte 3 = Hi; Byte 4 = Lo
3. The number of bytes is analyzed
4. The marker words are written to the target registers
If the values are written successfully, a response is sent.
This response will contain the function code, the starting address, and the number of
registers from the request
(→ Section "Write Multiple Registers 0x10:", page 551 Request PDU)
Function Code
1 byte
0x10 ;Write Multiple Registers
Table 104: Response-PDU
easyE4
11/18 MN050009 EN www.eaton.com
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Summary of Contents for easyE4 series
Page 1: ...Manual 11 18 MN050009 EN easyE4 Manual...
Page 4: ......
Page 16: ...12 easyE4 11 18 MN050009 EN www eaton com...
Page 22: ...0 1 About this manual 18 easyE4 11 18 MN050009 EN www eaton com...
Page 169: ...easyE4 11 18 MN050009 EN www eaton com 165...
Page 490: ...7 System settings 7 16 Time and Date setting 486 easyE4 11 18 MN050009 EN www eaton com...
Page 520: ...9 easyE4 inside 9 7 NET network 516 easyE4 11 18 MN050009 EN www eaton com...
Page 570: ...11 Connection to other devices 11 6 E mail function 566 easyE4 11 18 MN050009 EN www eaton com...
Page 578: ...12 Faults 12 4 Functionality of the NET faulty 574 easyE4 11 18 MN050009 EN www eaton com...
Page 582: ...13 Maintenance 13 3 Storage transport and disposal 578 easyE4 11 18 MN050009 EN www eaton com...
Page 594: ...590 easyE4 11 18 MN050009 EN www eaton com...