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8.9
Sampling Counter Function
The sampling counter function counts pulses that are input during the specified sampling period (T) and stores it as
CH
Sampling count value (RWr12 to RWr13, RWr2A to RWr2B) in the remote register.
(1) Setting method of the sampling counter function
1.
Set "Parameter write" for "Method selection".
"CC IE Field Configuration" window
Select a high-speed counter module in "List of stations"
[CC IE Field Configuration]
[Parameter Processing of Slave Station]
2.
Select "2: Sampling Counter Function" in "CH
Counter function selection".
(2) Setting of the sampling period
Set the sampling period (T) by setting values to CH
Cycle setting (Sampling counter/Periodic pulse counter)
(RWw17, RWw2F) and CH
Time unit setting (Sampling counter/Periodic pulse counter) (RWw16, RWw2E).
When CH
Setting change request (Sampling counter/Periodic pulse counter) (RY27, RY3F) is turned off then
on, the setting values are enabled.
However, the setting values are enabled from the next operation of sampling counter function if the settings are
changed while the sampling counter function is being performed.
●
Change the sampling period by CH
Setting change request (Sampling counter/Periodic pulse counter) (RY27, RY3F).
When the period is changed by Initial data processing completion flag (RY8) or Initial data setting request flag (RY9), the
items of the monitor value such as CH
Present value (RWr10 to RWr11, RWr28 to RWr29) are cleared.
●
When changing the sampling period by using CH
Setting change request (Sampling counter/Periodic pulse counter)
(RY27, RY3F), note the following:
Do not execute the sampling counter function by CH
Function input terminal (FUNC1, FUNC2) from when CH
Setting
change request (Sampling counter/Periodic pulse counter) (RY27, RY3F) is turned on until CH
Setting change
completed (Sampling counter/Periodic pulse counter) (RX27, RX3F) turns on. Doing so may perform counting with the
previous setting.
Setting item
Setting range
Reference
CH
Time unit setting (Sampling counter/Periodic pulse
counter) (RWw16, RWw2E)
0: 1ms
1: 10ms
CH
Cycle setting (Sampling counter/Periodic pulse counter)
(RWw17, RWw2F)
1 to 65535
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