Yokogawa JUXTA M Series Digital Limit Alarms MVTK Uživatelský manuál Strana 56

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<Toc> <Ind> <5. MODBUS Communication >
IM 77J04J11-01E 1st Edition : 2006.08.25-00
16 Writes data into multiple D registers
Function
Writes data into a sequence of contiguous D registers by the specified number of D regis-
ters, starting at a specified D register 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 5.2.2.
Broadcast addressing is possible by setting 00 in the address number.
Message (for normal operation)
Message (continued)
Element Start of
Message Mark
(:)
Address
Number
(ADR)
Function
Code (10)
D-Register
Start Number
(Lower Digit)
Number of bytes in RTU mode None 1 1 1
1
None
2
22 2
D-Register
Start Number
(Upper Digit)
1
2Number of bytes in ASCII mode
Error
Check
End of Message
Mark (CR+LF)
Number of
D Registers
(Upper Digit)
2
1
Number of
D Registers
(Lower Digit)
2
1
Byte
Count
2
1
Data
(Upper Digit)
2
1
Data
(Lower Digit)
2
1
2
2
Response (for normal operation)
Response (continued)
Element Start of
Message Mark
(:)
Address
Number
(ADR)
Function
Code (10)
D-Register
Start Number
(Lower Digit)
Number of bytes in RTU mode None 1 1 1
1
None
2
22 2
D-Register
Start Number
(Upper Digit)
1
2Number of bytes in ASCII mode
Error
Check
End of Message
Mark (CR+LF)
Number of
D Registers
(Upper Digit)
2
1
Number of
D Registers
(Lower Digit)
2
1
2
2
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