YOKOGAWA VZ20X, User Manual

Page: 109 / 158

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IM 77V01B01-01EN 5th Edition: 2023.03.07-00
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16 Write multiple registers
●
Function
Data is written to continuous registers for the number of specified points from the
specified register No.
・
The maximum number of registers that can be written in a single operation is 50.
・
For details on the response format when an error occurs, refer to the response
configuration.
・
When data outside the parameter setting range is set, a normal response is returned
though data is not written.
●
Message (during normal operation)
Element MBAP Header PDU
Number of
bytes
2 2 2 1 1 2 2
Command
elements
Transfer
ID
Protocol
ID
Number of
bytes
Unit ID Function
code
(0x10)
Register
start No.
(Hex
number)
Number of
registers
(Hex) Arbitrary 0000 2n+7 01 10 n
Continuation of request
PDU
1 2 2
Byte
count
(Note 1)
Write
data
... Write
data n
2n
Note 1: Byte count = 2 x number of write registers
●
Response (during normal operation)
Element MBAP Header PDU
Number of
bytes
2 2 2 1 1 2 2
Command
elements
Transfer
ID
Protocol
ID
Number of
bytes
Unit ID Function
code
(0x10)
Register
start No.
(Hex
number)
Number of
registers
(Hex) Arbitrary 0000 0006 01 10 n