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– generation of the give number of pulses (only for DO1–DO3 outputs).
To select the mode and its settings, write the values to the corresponding Modbus registers (see
5.6.1 Logic switching
The outputs in the logic state switching mode are controlled by writing the output status bitmask to
the corresponding Modbus registers.
5.6.2 Low-frequency PWM signal generation
All Module outputs can operate in the mode of generating PWM signals.
To configure the mode, set the parameters:
– PWM period (1000 to 60,000 ms);
– PWM duty cycle (%).
5.6.3 High frequency PWM signal generation
The outputs DO1–DO8 can operate in the mode of generating high-frequency PWM signals.
To configure this mode, set the following parameters:
– pulse repetition rate (0 to 60,000 Hz);
– PWM duty cycle (%).
5.6.4 Generator of a given number of pulses
The outputs DO1–DO3 can operate in the mode of generating a given number of pulses.
Each output is controlled by writing the following parameter values to output control registers:
– number of pulses (from 1 to 65535);
– generation frequency (up to 60,000 Hz).
The generation of pulses will start after writing the number of pulses into the corresponding register.
The duty cycle the signal is unchanged and equal to 50%.
In the register of the counter value of the pulse generator of a particular output, the number of pulses
that are left to output to generate out of this output is stored.
To force the pulse generation to stop, it is necessary to write the value
0
into the register Counter
value of the pulse generator.
5.7 Output switching modes
The Module outputs can operate in two switching modes:
– high-side switch (
), for switching loads with a smaller capacity and a large current;
– push-pull output (
), for switching loads with a higher capacity and lower current.
Two modes can not be simultaneously enabled on the same output.
