4-2
<Toc> <Ind>
<4. Module Access >
IM 34M6H54-01E
4.1.2
Reading Data (READ/HRD)
Use the special module read instruction and special module high-speed read instruction for
reading the data from the pulse input module.
SEE ALSO
Refer to the following instruction manual for details on the special module read instruction and special
module high-speed read instruction.
Sequence CPU Instruction Manual — Instructions (IM 34M6P12-03E)
Table 4.2
Special Module Read/High-speed Read Instructions
READ
FUN
No.
Special
module
read
Instruction
Mnemonic
Symbol
Necessary
Not
necessary
Input condition
Execution
condition
Step
count
Processing
unit
Carry
81
READ
5
READ
81P
↑
READ
6
●
—
16 bits
—
HRD
Special
module
high-speed
read
83
HRD
5
HRD
83P
↑
HRD
6
●
—
16 bits
—
T0402.EPS
•
Symbols
Slot number ... 3-digit integer with the following structure (leading 0’s can be omitted):
k
SL
n1
D
READ
k
SL
n1
D
HRD
Physical slot (1 to 13) where the pulse input module is installed
Unit number
Main unit: 0
Sub-unit: 1 to 7 (for sequence CPU)
X XX
SL: Slot number
n1: First data position
D:
First device number for writing data read
k:
Transfer data count
First data position number for reading ... Data position number from which to start reading (Table 4.1)
First device number for writing data read ... For the device which can be used, refer to the Sequence CPU
Instruction Manual — Instructions (IM 34M6P12-03E).
Transfer data count ... Number of data to be read
FC040102.EPS
CAUTION
The special module long-word read instruction cannot be used. The operation is not guar-
anteed if this instruction is used to read data from the pulse input module.
1st Edition : Feb.01,1999-00
Summary of Contents for F3XS04-3N
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