Standard function blocks
254
Operation
The counter output (CV) value is increased by 1 if the counter input (CU) value changes
from 0 -> 1 and the reset input (R) value is 0.
The counter output (CV) value is decreased by 1 if the counter input (CD) value
changes from 0 -> 1 and the load input (LD) value is 0.
If the load input (LD) value is 1, the preset input (PV) value is stored as the counter
output (CV) value.
The counter output (CV) is reset to 0 if the reset input (R) is 1.
If the counter output has reached its minimum or maximum value, -32768 or +32767,
the counter output remains unchanged until it is reset (R) or until the load input (LD) is
set to 1.
The up counter status output (QU) is 1 if the counter output (CV) value > preset input
(PV) value.
The down counter status output (QD) is 1 if the counter output (CV) value < 0.
Example:
Inputs
Down counter input (CD): Boolean
Up counter input (CU): Boolean
Load input (LD): Boolean
Reset input (R): Boolean
Preset input (PV): INT
Outputs
Down counter status output (QD): Boolean
Up counter status output (QU): Boolean
Counter output (CV): INT
CU
CD
R
LD
PV
QU
QD
CV
prev
CV
0 -> 0
0 -> 0
0
0
2
0
1
0
0
0 -> 0
0 -> 0
0
1
2
1
0
0
2
0 -> 0
0 -> 0
1
0
2
0
1
2
0
0 -> 0
0 -> 0
1
1
2
0
1
0
0
0 -> 0
0 -> 1
0
0
2
0
1
0
0 - 1 = -1
0 -> 0
1 -> 1
0
1
2
1
0
-1
2
0 -> 0
1 -> 1
1
0
2
0
1
2
0
0 -> 0
1 -> 1
1
1
2
0
1
0
0
0 -> 1
1 -> 0
0
0
2
0
0
0
0 + 1 = 1
1 -> 1
0 -> 0
0
1
2
1
0
1
2
1 -> 1
0 -> 0
1
0
2
0
1
2
0
1 -> 1
0 -> 0
1
1
2
0
1
0
0
1 -> 1
0 -> 1
0
0
2
0
1
0
0 - 1 = -1
1 -> 1
1 -> 1
0
1
2
1
0
-1
2
1 -> 1
1 -> 1
1
0
2
0
1
2
0
1 -> 1
1 -> 1
1
1
2
0
1
0
0
CV
prev
is the previous cycle counter output value.
Summary of Contents for ACSM1 Series
Page 1: ...ACSM1 Firmware Manual ACSM1 Speed and Torque Control Program...
Page 2: ......
Page 4: ......
Page 12: ...Table of contents 12...
Page 49: ...Drive control and features 49...
Page 282: ...Standard function blocks 282...
Page 306: ...Application program template 306...
Page 312: ...Control chain block diagrams 312...
Page 331: ...331...
Page 332: ...332...
Page 333: ......