Input Description¶
EN
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | - | - |
In order to enable the Function Block processing, input EN has to be continuously set to TRUE. The Function Block is not processed if input EN = FALSE.
When calling the Function Block the first time, the inputs are checked for validity and plausibility. If this is not the case, processing is aborted and corresponding error is displayed at output ERR/ERNO.
CHN_NUM
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| WORD | - | - | - |
CHN_NUM contains the channel number managed by the Function Block:
- CHN_NUM = 0: the output O0 is managed
- CHN_NUM = 1: the output O1 is managed
EN_FREQ
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | - | - |
If EN_FREQ=TRUE, the frequency output is enabled. If EN_FREQ = FALSE, no frequency output is performed.
Input EN_FREQ corresponds to output bit 7 in “control byte”.
FREQ
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| WORD | - | 0 … 15 | Khz |
The input FREQ is used to specify the frequency of output pulse.
The input FREQ corresponds to output word “PWM Frequency”.
NUM
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| WORD | - | - | - |
The input NUM is used to specify the number of pulses to be sent. The number is from 1 to 65535 pulses.
The input NUM corresponds to output word “PWM Frequency”.
ADR_IN POINTER \ TO structCD522counterin
At this input, the address of the first input data from the structure of counter input of CD522 should be connected. The use of an ADR operator is needed. If input ADR_IN is not connected, then the outputs DONE=FALSE and ERR= TRUE.
Example (for counter 0):
ADR_OUT POINTER \ TO structCD522counterout
At this input, the address of the first output data from the structure of counter output of CD522 should be connected. The use of an ADR operator is needed. If input ADR_OUT is not connected, then the outputs DONE=FALSE and ERR= TRUE.
Example (for counter 0):