Omron CP - PROGRAMMING MANUAL 05-2007 - Page 763

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High-speed Counter/Pulse Output Instructions Section 3-20
Description PULS(886) sets the pulse type and number of pulses specified in T and N for
the port specified in P. Actual output of the pulses is started later in the pro-
gram using SPED(885) or ACC(888) in independent mode.
Flags
Precautions • An error will occur if PULS(886) is executed when pulses are already
being output. Use the differentiated version (@PULS(886)) of the instruc-
tion or an execution condition that is turned ON only for one scan to pre-
vent this.
• The calculated number of pulses output for PULS(886) will not change
even if INI(880) is used to change the PV of the pulse output.
• The direction set for SPED(885) or ACC(888) will be ignored if the num-
ber of pulses is set with PULS(881) as an absolute value.
• It is possible to move outside of the range of the PV of the pulse output
amount (
−2,147,483,648 to 2,147,483,647).
Example When CIO 0.00 turns ON in the following programming example, PULS(886)
sets the number of output pulses for pulse output 0. An absolute value of
5,000 pulses is set. SPED(885) is executed next to start pulse output using
the CW/CCW method in the clockwise direction in independent mode at a tar-
get frequency of 500 Hz.
Constants See descrip-
tion of oper-
and.
See descrip-
tion of oper-
and.
See description of oper-
and.
Data Registers --- --- ---
Index Registers --- --- ---
Indirect addressing
using Index Registers
--- --- ,IR0 to ,IR15
–2048 to +2047 ,IR0 to
–2048 to +2047 ,IR15
DR0 to DR15, IR0 to
IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Area P T N
Name Label Operation
Error Flag ER ON if the specified range for P, T, or N is exceeded.
ON if PULS(886) is executed for a port that is already out-
putting pulses.
ON if PULS(886) is executed in an interrupt task when an
instruction controlling pulse output is being executed in a
cyclic task.
@PULS
#0000
#0000
D100
0.00
@SPED
#0000
#0001
D110
1388
0000
D100
D101
01F4
0000
D110
D111
Number of output pulses: 5,000
Target frequency: 500 Hz