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3 SPECIFICATIONS
3 - 40
(b)
Reading data by the FROM command in a sequence program
With the FROM command, special relays are designated by addresses.
Designation addresses are 2500
(Reading of data)
Sequence
program
Program example
The following shows a program where a value in the special relay
address 2500
signal (X0B) is ON.
To read data from the special relay to the programmable controller
CPU, use the multitask execution start signal (X0B) as an interlock.
Read
Command
X0B
Sequence
FROM
Program
(Reading of data)
(1-word units)
to 2507
H
Special Relay
b15
2500
H
FROM
2501
H
2502
H
2503
H
2504
H
2505
H
2506
H
2507
H
is read into D0 when the multitask execution start
H
Interlock that enables or disables FROM execution.
Special Relay
b15
EM
EM
2500
H
9015
9014
EM
EM
2501
H
9031
9030
to
EM
EM
2506
H
9111
9110
EM
EM
2507
H
9127
9126
MELSEC-Q
, in 1-word units.
H
QD51(-R24)
to
b0
EM9000 to EM9015
EM9016 to EM9031
EM9032 to EM9047
EM9048 to EM9063
EM9064 to EM9079
EM9080 to EM9095
EM9096 to EM9111
EM9112 to EM9127
FROM H0 H2500 D0 K1
QD51(-R24)
to
b0
EM
EM
EM9000 to EM9015
to
9001
9000
EM
EM
EM9016 to EM9031
to
9017
9016
to
EM
EM
EM9096 to EM9111
to
9097
9096
EM
EM
EM9112 to EM9127
to
9112
9113
3 - 40
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