31
Circular Mode
Section 4-4
Output Pattern
External outputs 7 to 0 correspond to the rightmost 8 bits (07 to 00) for the
output pattern.
Both internal and external outputs or only eight internal outputs can be speci-
fied. The results of the outputs will be transferred to word n+9.
It is possible to preset 16 ranges, any of which can be chosen.
Ranges and external outputs can be enabled or disabled.
A maximum of three ranges and a present counter value can be changed by
transferring data even when the High-speed Counter Unit is in operation.
Both upper and lower limits cannot be set to 8,388,607.
4-4
Circular Mode
The High-speed Counter Units in this mode counts the number of pulses
within a range of 0 to 65,535. The count value is reset to 0 after it reaches the
maximum countable value set and the High-speed Counter Unit continues
counting the number of pulses. A total of 16 ranges with upper and lower lim-
its can be set and when the count value is within the ranges, the High-speed
Counter Unit will turn an output ON.
The example below uses the following lower and upper limits with the outputs
to be turned ON.
External outputs
Internal outputs
To output pins 0 to 7 of the external connector.
Range
Lower limit
Upper limit
Output (ON)
Range 0
4,000
4,500
3, 1
Range 1
200
3,000
7, 6
Range 2
9,000
1,000
6, 5
Range 3
4,300
7,000
2, 1
Range 2
Present counter value
Range 1
Range 0
Range 3
Maximum
value (9,999)
Count v
a
lue
Summary of Contents for C200H-CT021
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