IDEC MICROSmart FC6A Series Ladder Programming Manual page 121

Ladder Diagram
Reset
SFR R0
4
I0
Pulse
I1
Data
I2
R0 Q0
R1 Q1
R2 Q2
R3 Q3
Ladder Diagram
Reset
SFR R0
4
I1
Pulse
I2
Data
I3
R0
R1
Setting and Resetting Shift Register Bits
S
I0 R0
R
I1 R3
Program List
Instruction
LOD
LOD
LOD
SFR
LOD
OUT
LOD
OUT
LOD
OUT
LOD
OUT
Timing Chart
Reset Input I0
Pulse Input I1
Data Input I2
R0/Q0
R1/Q1
R2/Q2
R3/Q3
Program List
Q3
Q0
Q1
• Any shift register bit can be turned on using the SET instruction.
• Any shift register bit can be turned off using the RST instruction.
• The SET or RST instruction is actuated by any input condition.
FC6A S MICROS L
ERIES MART
Data
I0
I1
I2
R0
4
R0
Q0
R1
Q1
R2
Q2
R3
Q3
ON
OFF
One or more scans are required
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Instruction Data
LOD I1
LOD I2
LOD I3
SFR R0
4
OUT Q3
LOD R0
OUT Q0
LOD R1
OUT Q1
• The last bit status output can be programmed directly after the SFR
instruction. In this example, the status of bit R3 is read to output Q3.
• Each bit can be loaded using the LOD R# instruction.
P M
ADDER ROGRAMMING ANUAL
4: B
ASIC
FC9Y-B1726
I
NSTRUCTIONS
4-25