Siemens ET 200SP Manual page 42

Incline of dithering ramp up and down
Incline of dithering ramp up: This parameter is the slope of the ramp up of the dithering
amplitude for a theoretical increase of amplitude from 0% to 100%.
Incline of dithering ramp down: This parameter is the slope of the ramp down of the dithering
amplitude for a theoretical decrease of amplitude from 100% to 0%.
The value range is 0 to 30000 ms in each case. If you set a value above the value range, a
value of 30000 ms is used for the incline.
The respective incline influences the effective ramp time. Example: A dithering amplitude of
10% and an incline of 2500 ms/100% yields the following effective ramp time:
10 % × 2500 ms/100 % = 250 ms
In addition, you can change the incline of the ramp up and the ramp down jointly via the
control interface by entering a new value in SLOT as integer (INT twice). In so doing, you
can use the MODE_SLOT control bit to choose whether you want to apply a change once or
cyclically:
MODE_SLOT = 0
MODE_SLOT = 1
Technology Module TM Pulse 2x24V (6ES7138‑6DB00‑0BB1)
Manual, 05/2019, A5E35061186-AB
One-time change:
As soon as you write the value 5
value from SLOT (LOWWORD) is applied once as the incline of the ramp
up and the value from SLOT (HIGHWORD) is applied once as the incline
of the ramp down.
A change using SLOT takes effect after a stop and restart of the dithering.
Cyclic change:
When you write the value 21
value from SLOT (LOWWORD) is applied cyclically in each case as incline
of the ramp up and the value from SLOT (HIGHWORD) is applied in each
case as incline of the ramp down.
A change using SLOT takes effect after a stop and restart of the dithering.
Configuring/address space
4.2 Pulse width modulation PWM mode
in the corresponding output byte, the
D
in the corresponding output byte, the current
D
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