Technology functions
3.2 Pulse generators
CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
Manual, 12/2017, A5E40898741-AA
73
Individual updating of the parameter 'Period duration'
The following representation illustrates the workflow of the individual updating of the
parameter 'Period duration'. The described workflow principle can also be used on the
channels of the high-speed counters.
①
User writes the first parameter in SLOT and specifies the first parameter in LD_SLOT
②
Technology channel applies the first parameter and indicates the application by change in the
bit STS_LD_SLOT
③
User writes the second parameter in SLOT and specifies the second parameter in LD_SLOT
④
Technology channel applies the second parameter and indicates the application by change in
the bit STS_LD_SLOT
⑤
User writes 0 in LD_SLOT, (SLOT inactive)
⑥
Technology channels answers change in LD_SLOT with a change in STS_LD_SLOT
Figure 3-4
Individual updating
Note that the following requirements apply to the representation shown above:
●
The value MODE_SLOT must be set to 0
●
Errors or invalid values are shown in the feedback bit ERR_SLOT_VAL
●
The error must be acknowledged
If MODE_SLOT 0 = 1, the following applies (for PWM mode only):
●
The value in SLOT is continuously evaluated according to LD_SLOT
●
STS_LD_SLOT does not change
●
An error is automatically reset as soon as a valid value is set in SLOT
Summary of Contents for Simatic S7-1500 CPU 1512C-1 PN
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