YOKOGAWA F3SP71-4S, User Manual

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2-10
IM 34M06P15-03E 2nd Edition: Jan. 31, 2012-00
z Holding Register
Holding registers are associated with data registers (D).
Holding Registers
（
00001 to 65536
）
F020604.VSD
Data Registers
D
(
D00001 to D65535
)
65536
00001
65535
Figure 2.6.4 Associations of Holding Registers and Data Registers (D)
D00001 is associated with 00001 of the holding registers.
The holding register device number associated with a data register is calculated using
the following formula.
Holding register device number = Data register number
The maximum amount of access points depends on the allocation points of the data
registers.
Tip
$0000 is used in the PDU for specifying the starting holding register number 00001 corresponding to
D00001.