Adam ADAM-3600-C2G, Руководство пользователя

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ADAM-3600 Series User Manual 26
Counter_EN: counter enable . The data type is discrete and the value can only be “0” or “1”.
Users can set the initial value and signal reverse. When the signal reverse is “True”, it means
that DI interface enable the counter function with value of “1”; Otherwise, when the signal
reverse is “False”, it means that DI interface enable the counter function with the value of “0”.
Counter_VAL : counter value displaying current value of the counter. The data type is analog.
Users can set the initial value through iRTU Studio. Another function of Counter_VAL is that
users can reset the counter through making it equals to “0”.
– PWM Function Configuration
The DO interface’s PWM function could output the square wave signal with the specified duty
cycle and frequency. Users can configure it as the following figure shows.
Figure 4.7 DO interface PWM function configuration
When configuring PWM function, some parameters are required and their meaning and set-
ting are as follows:
PWM_EN : PWM enable. The data type is discrete and the value can only be “0” or “1”. Users
can set the initial value and signal reverse. When the signal reverse is “True”, it means that
DO interface enable the PWM function with value of “1”; Otherwise, when the signal reverse
is “False”, it means that DO interface enable the PWM function with the value of “0”.
PWM_HI : the duration time of PWM high level. The data type is analog of 32 bits and the unit
is 0.1ms. The value range is [(1~4294967295) x0.1ms+0.1ms]. In the initial status, the value
is 0.
PWM_LO : the duration time of PWM low level. The data type is analog of 32 bits and the unit
is 0.1ms. The value range is [(1~4294967295) x0.1ms+0.1ms]. In the initial status, the value
is 0.
PWM_CNT : the DO’s output number of square wave signal. The data type is analog and the
initial status is “0” under default condition. Users can modify the initial value through iRTU
Studio.
With the duration time of high level and low level, the frequency and duty cycle can be calcu-
lated. The PWM period is the sum of duration of high level and low level, namely
PWM_LO. The PWM frequency is 1/ ( PWM_LO). The PWM duty cycle is the ratio
of duration time of high level and PWM period, namely PWM_HI/ ( PWM_LO).