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DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
2.12 High-speed Counters
There are two types of high speed counters provided including Software High Speed Counter
(SHSC) and Hardware High Speed Counter (HHSC). The same Input point (X) can be designated
with only one high speed counter. Double designation on the same input or the same counter will
result in syntax error when executing DCNT instruction.
Applicable Software High Speed Counters:
C
1-phase input 2 phase 2 input
X
C235 C236 C237 C238 C239 C240 C241 C242 C232 C233 C234
X0
U/D
A
X1 U/D
X2 U/D B
X3 U/D
X4 U/D A
X5 U/D B
X6 U/D A
X7 U/D B
R/F M1270 M1271 M1272 M1273 M1274 M1275 M1276 M1277 - - -
U/D M1235 M1236 M1237 M1238 M1239 M1240 M1241 M1242 - - -
U: Count up D: Count down A: Phase A input B: Phase B input
Note:
1. U/D (Count up/Count down) can be specified by special M. OFF = count up; ON = count down.
2. R/F (Rising edge trigger/ Falling edge trigger) can also be specified by special M. OFF =
Rising; ON = Falling.
3. SHSC supports max 10kHz input pulse on single point. Max 8 counters are applicable in the
same time.
4. SS2 model does not support 2-phase 2-input conuting by (X0,X2) (C232).
5. For 2-phase 2-input conuting, (X4, X5) (C233) and (X6, X7) (C234), max 5kHz. (X0,X2)
(C232), max 15kHz.
6. 2-phase 2-input counting supports double and quadruple frequency, which is selected in
D1022 as the table in next page
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