Input Description¶
MCX_BinaryReference_dc provides the possibility to read the encoder position related to an edge on a binary input. The master position is given by an encoder, which must be available, if the cam switch functionality is to be used.
The values for getBinary and Mode_On_Off are individually changeable online.
The Function Block is related to a binary input. It saves the actual encoder position as refPosition when an edge of the binary input has been received. Accuracy would be best when the cam is configured at a low number. The output refNum is counted up for each trigger, so this would also provide an information when more edges are triggered then could be transferred to the PLC.
- Mode_Off_On=FALSE
- a negative edge is used as trigger
- Mode_Off_On=TRUE
- a positive edge is used as trigger
The refPosition can be
- getBinary=TRUE
- the binary value as directly received from the encoder
- getBinary=FALSE
- the angle-value (position is converted by the angle resolution)
The values are transferred multiplexed, so it may take some time to receive them.
The actual state of the binary input can also be monitored with the output “state”.
Enable
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | - | - |
The Function Block is activated with Enable TRUE. With Enable=FALSE, the respective cam will be switched off immediately.
getBinary
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | - | - |
getBinary selects if a binary value or angle value should be triggered.
Mode_Off_On
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | - | - |
Mode_off_on selects if a positive or negative edge will be used as trigger.
CamNumber
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| WORD | - | 1…32 | - |
Number of the cam: this number runs from 1..32. The parameter cam_To_Track[0..31] must be used to map the cam to the available digital outputs. A configuration tool must be used for setting the cam_To_Track.
csdc
Data type: CSDCX_REF_TYPE
The 2 elements in_csdc and out_csdc of csdc must be initialized with the beginning address of the input data area and the output data area to facilitate proper function of the cam.