LENZE EVF9329-EV EVF9329-EV EVF9329-EV EVF9329-EV EVF9329-EV EVF9329-EV

Mode for individual update (MODE_SLOT = 0)
Use this mode if you occasionally change the specific parameters (such as period
duration) before the start of the output sequence or during operation.
– The value in SLOT is always applied when the value changes in LD_SLOT.
– The acknowledgment bit STS_LD_SLOT in the feedback interface is switched.
– The value of LD_SLOT defines the interpretation of SLOT (see the table below
"Interpretation of the SLOT parameter value").
– If the LD_SLOT value is invalid, the setting of the feedback bit ERR_LD indicates a
parameter assignment error. The user has to reset the error using the control bit
RES_ERROR and enable the SLOT parameter again for the next value.
– Changes made in this mode can be read back by the channel to the parameter
assignment data record.
– The current changes are entered in the data record 128 during readback of the
parameter assignment data from the user program with RDREC. These changes are
lost during a warm restart of the CPU.
● Mode for cyclic updating (MODE_SLOT = 1)
Use this operating mode if the program is to continuously control another parameter in
addition to the main parameter to be controlled.
– The value in SLOT is transferred with each module cycle.
– No acknowledgment bit is available.
– The value of LD_SLOT defines the interpretation of SLOT (see the table below
"Interpretation of the SLOT parameter value").
– If the value in SLOT is not valid, the error ERR_SLOT_VAL occurs. The error is
automatically reset as soon as a valid value is loaded.
– In this mode, the value in the parameter assignment data record is not updated. If
LD_SLOT is changed in this mode, the last value applied from LD_SLOT is valid.
– The mode for permanent updating can be stopped by setting LD_SLOT to 0 and
MODE_SLOT to 0. By stopping the mode for permanent updating, the changes made
at the parameters during permanent updating are retained until the next changes via
SLOT (cyclic or once) or until the next STOP-RUN transition.The following representation illustrates the sequence 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.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 with a 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 with a change in the bit
STS_LD_SLOT
⑤ User writes 0 in LD_SLOT, (SLOT inactive)
⑥ Technology channel answers change in LD_SLOT with a change in STS_LD_SLOT
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
Cyclic updating of the parameter 'Period duration'
The following representation illustrates the sequence of the cyclic updating of the parameter
'Period duration'. The described workflow principle can also be used on the channels of the
high-speed counters.• User sets SLOT to the required parameter