YOKOGAWA F3CU04-1S - Accessing Using Sequence Instructions

B1-2
IM 34M06H62-02E 3rd Edition : Jul.16
,
2015-00
B1.1 Accessing Using Sequence Instructions
Accesses to this module from a sequence CPU can be classified into three types,
namely, reading from data registers, writing to data registers and reading from input
relays.
 Reading Registers (READ / HRD)
Use the Read instruction or High Speed Read instruction for reading registers. Reading
is performed in 16-bit units.
Table B1.1 Reading Registers
Function
No.
Instruction Mnemonic Symbol
Is Input
condition
Required?
Execution
Condition
Step
count
Processing
unit
Carry
Yes No
81
R
ead
READ
 ―
5
16 bits ―
81P ↑READ 6
83
H
igh speed
read
HRD
 ―
5
16 bits ―
83P ↑HRD 6
 Description of Symbols