Table of Contents
Advertisement
No.
By executing the Coincidence output point write instruction (ICCOVWR1(P)), any value can be written to the coincidence output No.1
1)
point setting area.
When the following condition is met, CH1 Counter value smaller (No.1) (SM1882) turns on.
2)
• CH1 Current value (SD1880 or SD1881) < Coincidence output No.1 point setting
When CH1 Coincidence signal No.1 reset command (SM1890) is turned on, CH1 Counter value coincidence (No.1) (SM1881) and
3)
the Coincidence output No.1 signal turn off.
To enable the output by the Coincidence output No.1 signal, turn on CH1 Coincidence output enable command (SM1892).
4)
(Output of both the Coincidence output No.1 and No.2 signals is enabled.)
When the following condition is met, CH1 Counter value coincidence (No.1) (SM1881) and the Coincidence output No.1 signal turn
on.
5)
• CH1 Current value (SD1880, SD1881) = Coincidence output No.1 point setting
Also, when the following condition is met, CH1 Counter value smaller (No.1) (SM1882) turns off.
• CH1 Current value (SD1880 or SD1881) Coincidence output No.1 point setting
If CH1 Coincidence signal No.1 reset command (SM1890) is turned on while the values match, CH1 Counter value coincidence
6)
(No.1) (SM1881) and the Coincidence output No.1 signal turn off.
If CH1 Coincidence signal No.1 reset command (SM1890) is turned off while the values match, CH1 Counter value coincidence
7)
(No.1) (SM1881) and the Coincidence output No.1 signal turn on again.
When the following condition is met, CH1 Counter value greater (No.1) (SM1880) turns on.
8)
• CH1 Current value (SD1880 or SD1881) > Coincidence output No.1 point setting
When CH1 Coincidence signal No.1 reset command (SM1890) is turned on, CH1 Counter value coincidence (No.1) (SM1881) and
9)
the Coincidence output No.1 signal turn off. If CH1 Counter value coincidence (No.1) (SM1881) remains on, it cannot turn on the next
time.
● CH1 Counter value coincidence (No.n) (SM1881 or SM1884) can turn on regardless of the status of CH1 Coincidence
output enable command (SM1892).
● Due to internal processing of the high counter function, when CH1 Counter value coincidence (No.n) is turned on, CH1
Counter value greater (No.1) (SM1880) or CH1 Counter value smaller (No.1) (SM1882), or CH1 Counter value greater
(No.2) (SM1883) or CH1 Counter value smaller (No.2) (SM1885) may be on.
• Precautions
• When program scan time is less than 2ms, ensure a 2ms or longer on width for Coincidence signal No.n
reset command (SM1890 or SM1891) by using a method such as a timer.
• Coincidence output occurs on the rising edge of CH1 Counter value coincidence (No.n) (SM1881,
SM1884). Because of this, if it stays on, the next coincidence signal cannot be output. BY turning on CH1
Coincidence signal No.n reset command (SM1890 or SM1891), turn off CH1 Counter value coincidence
(No.n) (SM1881 or SM1884).
206
Description of operation
Hide quick links:
Advertisement
Table of Contents
