6.6.2 CTD
Input/output Operand
Data type
Constant(C0 — C255)
Cxxx
Word
CD
Enable bit
Boolean
LD
Enable bit
Boolean
PV
VW, IW, QW, MW, LW, SMW, AC, T, C, AIW,constant, *VD, *AC, *LD, SW Integer
The bit of CD is converted from 0 to 1 and the current
value minus 1. When the current value is equal to 0, the
counter is opened and counter stops count .When the LD
bit is equal to 1,counter bit is restored and the preset value
is loaded into the current value.
Counter range ： C xxx=C0~C255
Attention: The counter number of each counter is different.
Example:
117
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