Energy Meter Manual

<Toc> <Ind> < 6. Modbus/TCP Communication Protocol>
6-9
IM 77C01E01-10E
16 Writes data into multiple D registers
● Function
This function code writes data into successive D registers by the number starting with a
specified D registers number.
• The maximum number of D registers to be written into at a time is 32.
• For the format of response in the event of failure, see subsection 6.4.4.
• Broadcast addressing is possible (by setting “00” to the station number).
No response is returned when using the broadcast addressing.
● Request (for nomal operation): Writing data to n registers
12 2
2n
Data 1
Data n
Element
Number of bytes
Command
element
MBAP Header
22 2 2211
Hex value
Arbitrary 0000 2n+7 n
01 to 99 10
PDU
PDU
Unit ID
Function
code
Transaction ID
Protocol ID
Register
start number
Number of
registers
Number of
bytes
Byte
count
Request (continued)
● ● ● ●
● Response (for normal operation)
01 to 99
Element
Number of bytes
Command
element
MBAP Header
22 2 2211
Hex value
Arbitrary 0000 0006 10 n
PDU
Unit ID
Function
code
Transaction ID Protocol ID
Register
start number
Number of
registers
Number of
bytes