
Precautions During Programming
FP0
8
−
4
8.1
Use of Duplicated Output
8.1.2
When Output is Repeated with an OT, KP, SET, or RST Instruction
Condition of Internal and Output Relays During Operation
When instructions are repeatedly used which output to internal and output relays such
as transfer instructions and
OT
,
KP
,
SET
and
RST
instructions, the contents are
rewritten at each step during operation.
Example:
Processing when SET, RST and OT instructions are used (X0 to
X2 are all on).
R0
X0
R0
S
R0
X1
R
R0
X2
This section of the program is
processed as if R0 were on.
This section of the program is
processed as if R0 were off.
This section of the program is
processed as if R0 were on.
The output is determined by the final operation results
If the same output is used by several instructions such as the
OT
,
KP
,
SET
,
RST
, or data
transfer instructions, the output obtained at the I/O update is determined by the results
of the operation at the greatest program address.
Example:
Output to the same output relay Y0 with OT, SET and RST
instructions.
X0
Y0
X1
Y0
S
X2
Y0
R
Y0:
on
Y0:
on
Y0
: off
When X0 to X2 are all on, Y0 is output as off at I/O update.
If you need to output a result while processing is still in progress, use a partial I/O update
instruction
“F143 (IORF)”
.
Summary of Contents for FP0 Series
Page 14: ...Table of Contents FP0 xii ...
Page 16: ...Overview FP0 1 2 ...
Page 82: ...S LINK Control Unit FP0 4 2 ...
Page 95: ...Chapter 5 I O Allocation 5 1 I O Number 5 3 5 2 Control Unit 5 4 5 3 Expansion I O Unit 5 5 ...
Page 96: ...I O Allocation FP0 5 2 ...
Page 100: ...I O Allocation FP0 5 6 5 3 Expansion I O Unit ...
Page 102: ...Installation FP0 6 2 ...
Page 112: ...Installation FP0 6 12 6 5 Installation Using FP0 Flat Type Mounting Plate ...
Page 114: ...Wiring FP0 7 2 ...
Page 198: ...High speed Counter Pulse Output PWM Output FP0 9 34 9 5 PWM Output Function ...
Page 200: ...General use Serial Communications FP0 10 2 ...
Page 210: ...Self Diagnostic and Troubleshooting FP0 11 2 ...
Page 220: ...Specifications FP0 12 2 ...
Page 234: ...Dimensions FP0 13 2 ...
Page 243: ...Chapter 14 Appendix ...
Page 380: ...14 138 14 7 ASCII Codes ...