Energy Meter Manual

5-14
<Toc> <Ind> <5. Modbus/RTU and ASCII Communication Protocols>
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 5.1.4.
• Broadcast addressing is possible (by setting “00” to the station number).
No response is returned when using the broadcast addressing.
● Message (for normal operation)
End of Message
Mark
(CR + LF)
None
2
Byte
Count
1
2
Data
(Upper Digit)
1
2
Data
(Lower Digit)
1
2
Error
Check
2
2
Number of
D Registers
(Upper Digit)
1
22
1
Number of
D Registers
(Lower Digit)
…
…
…
Massage (continued)
Element
Number of bytes
in RTU mode
Number of bytes
in ASCII mode
Start of
Message
Mark (:)
None
1
Station
Number
(ST-NO)
1
2
Function Code
(10)
1
2
D-Register Start
Number
(Upper Digit)
1
22
1
D-Register Start
Number
(Lower Digit)
● Response (for normal operation)
Element
Number of bytes
in RTU mode
Number of bytes
in ASCII mode
Start of
Message
Mark (:)
None
1
Number of
D Registers
(Lower Digit)
1
2
Number of
D Registers
(Upper Digit)
1
2
Error
Check
2
2
Station
Number
(ST-NO)
1
2
None
End of Message
Mark
(CR + LF)
2
Function
Code
(10)
1
2
D-Register
Start Number
(Upper Digit)
1
22
1
D-Register
Start Number
(Lower Digit)
Response (continued)