Chapter 7 High-speed Counter Module AH02HC/AH04HC
7-25
(1) Linear accumulation:
If an accumulation register counts up, it counts from 0 to 999999999. If an accumulation
register counts down, it counts from 0 to -999999999.
If the value in an accumulation register is larger than the maximum value 999999999 or less
than the minimum value -999999999, the value in the accumulation register will be
999999999 or -999999999, and bit 1 in CR19/CR47/CR75/CR103 will be turned ON. Users
can read the error code 16#A0n1 in CR26/CR54/CR82/CR110. (n is a channel number. n:
0~3 (i.e. channel 0~channel 3))
Nu
e
faccu
ul at ed
ulses*
Time
or
*: Thecycle ofupdatingthenumber of sampled pulses is the cycle set.
999999999
-999999999
0
ON
ON
ON
OFF
OFF
OFF
Operation of a counter
bit0 (parameters for operation)
The linear accumulation is equal to
the maximum value or the minimum value.
bit2 (parameters for operation state)
The resetting value of the linear accumulation,
of the accumulation register, pulse input register,
or the linear accumulation is equal to the maximum
va lue or the minimum value.
bit2 (parameters for operation)
If the linear accumulation is larger than the maximum value 999999999 or less than the
minimum value -999999999 in the count cycle, the value stored in the accumulation register
will be 999999999 or -999999999, bit 1 in CR19/CR47/CR75/CR103 will be turned ON.
Users can read the error code 16#A0n1 in CR26/CR54/CR82/CR110. (n is a channel
number. n: 0~3 (i.e. channel 0~channel 3)) If bit 1 in CR0/CR28/CR56/CR84 is turned ON,
the sampling register/accumulation register/pulse input register, and bit 1 in
CR19/CR47/CR75/CR103 will be reset. After the sampling register/accumulation
register/pulse input register, and bit 1 in CR19/CR47/CR75/CR103 is reset, bit 1 in
CR0/CR28/CR56/CR84 will be turned OFF automatically.
The related parameters are described below.
Item Value/Setting value
Parameter
CH0 CH1 CH2 CH3
Number of
accumulated pulses
(Low word)
-999999999~999999999
#22 #50 #78 #106
Number of
accumulated pulses
(High word)
#23 #51 #79 #107
Operating state of a
counter
Bit 1: The linear
accumulation is larger than
the maximum value or less
than the minimum value.
#19 #47 #75 #103
Operation of a
counter
Bit 1: Resetting the
sampling
register/accumulation
register/pulse input register,
and bit 1 in
CR19/CR47/CR75/CR103
#0 #28 #56 #84
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