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2. Prog rammi ng Con cep ts
M N050 03003E F or m ore info rm ati on vi sit:
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input signals. The corresponding external inputs can be used again as general input points
(see the figure below).
c) When special M is used as a high speed counter, the inputs controlled by START and
RESET will be affected by the scan time.
HHSC0
HHSC1
HHSC2
HHSC3
M1265
M1273
M1267
M1275
M1269
M1277
M1271
M1279
X3
X7
X17
X13
M1272 M1274 M1276 M1278
M1264
M1266 M1268
M1270
X2
X6
X12
X16
M1241 M1242 M1243
M1244
C241
C242
C243
C244
D1225
D1226
D1227
D1228
X1
X5
X11
X15
X14
X10
X4
X0
HHSC0 HHSC1 HHSC2 HHSC3
HHSC0 HHSC1 HHSC2 HHSC3
HHSC0 HHSC1 HHSC2 HHSC3
HHSC0 HHSC1 HHSC2 HHSC3
HHSC0 HHSC1 HHSC2 HHSC3
HHSC0 HHSC1 HHSC2 HHSC3
M1246
M1247
M1248
M1249
M1254
M1253
M1252
M1251
DHSCS
DHSCR
DHSCZ
I
010
I
020
I
030
I
040
I
050
I
060
M1289
M1290
M1291
M1292
M1293
M1294
M1294
HHSC0
HHSC1
HHSC2
HHSC3
AND
OR
AND
OR
U/D
U
A
B
D
Counting pulses
Counting pulses
Present value in counter
Select counting modes
U/D mode setup flag
Reset signal R
Set values 1 ~ 4 indicate
Mode 1 ~ 4 (1 ~ 4 times frequency)
Start signal S
Interruption forbidden flag
High-speed
comparative
instruction
Output reaches
comparative value
Output reaches
comparative value
for outputs
Counting up/down
monitoring flag
Comparator
Counting reaches set value
8 set values
DHSCS occupies 1 group of set values
DHSCR occupies 1 group of set values
DHSCZ occupies 2 groups of set values
SET/RESET
010 ~ 060 clear
the present value
I
I
4. Counting modes:
The counting modes of the hardware high-speed counters in the ELC-PV can be set in D1225 ~
D1228.
Counting modes
Wave pattern
Type
Set value in special D
Counting up(+1)
Counting down(-1)
1
(Normal frequency)
U/D
U/D FLAG
1-phase
1 input
2
(Double frequency)
U/D
U/D FLAG
1
(Normal frequency)
U
D
1-phase
2 inputs
2
(Double frequency)
U
D
1
(Normal frequency)
A
B
2-phase
2 inputs
2
(Double frequency)
A
B
Содержание ELC-PB
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