74
I/O Signal Timing Chart
Section 7-4
Output Status
(Word n+9)
These bits indicate the status of outputs.
These bits are set to 1 regardless of the setting of word n bit 07 for the exter-
nal output enabled function.
7-4
I/O Signal Timing Chart
Refer to the following for the relationship between input and output bits in lin-
ear and circular modes.
1,2,3...
1.
These bits are turned ON at the rising edge of the start/stop bit.
2.
No external output will be available if the external output function is dis-
abled.
or
If the forced external output function is enabled, no internal and external
output will be available when the external output function is disabled.
3.
The High-speed Counter Unit will stop counting when the Start/Stop Bit is
set to 0. The previous internal and external outputs will be kept on hold.
4.
If these bits are turned ON while the High-speed Counter Unit has forced
external outputs, the High-speed Counter Unit will have normal external
outputs and no forced external output will be available.
External outputs
Internal outputs
Start/Stop
Word n bit 00
Operating
Word n+6 bits
06 and 00 (08)
Internal output
Word n+9
External output
Enable external
output
Word n bit 07
(A): The normal outputs of the High-speed Counter Unit
(B): The output status of the High-speed Counter Unit not in operation
The value in the parentheses are for counter 2
Forced external outputs are disabled.
(A): The normal outputs of the High-speed Counter Unit
(B): The forced external outputs of the High-speed Counter Unit
Forced external outputs are enabled.
Summary of Contents for C200H-CT021
Page 1: ...C200H CT021 High speed Counter Unit Operation Manual Revised December 2000 ...
Page 2: ...iv ...
Page 4: ...vi ...