
92
I/O Signal Timing Chart
Section 8-4
8-4
I/O Signal Timing Chart
Refer to the following for the relationship between input and output bits in pre-
set mode.
Normal Operation
Values in parentheses are for counter 2. External outputs 0 to 3 are for
counter 1 and external outputs 4 to 7 are for counter 2.
1,2,3...
1.
The counter starts at the rising edge of word n bit 00 (01) or external con-
trol input IN2.
2.
After the counter starts, external outputs 0 to 2 (4 to 6) are turned ON or
OFF according to the preset external output ON/OFF count values.
3.
The counter will stop counting if the count value reaches 0 and external
output 3 (7) will be turned ON for the preset retention time.
Counter preset value
Count value
Start
Word n bit 00 (01) or exter
nal control input IN2
Count value = 0
Counting
Word n+6 bit 00 (08)
Internal/External output 0
or 4
Word n+9 bit 00 (04)
Internal/External output 1
or 5
Word n+9 bit 01 (05)
Internal/External output 2
or 6
Word n+9 bit 02 (06)
Internal/External output 3
or 7
Word n+9 bit 03 (07)
External output enabled
Word n bit 07
RUN indicator
Lit
Not lit
Содержание C200H-CT021
Страница 1: ...C200H CT021 High speed Counter Unit Operation Manual Revised December 2000 ...
Страница 2: ...iv ...
Страница 4: ...vi ...