Each DM72F• expert module can support expert functions. Expert functions are defined as either simple or complex. Only one type can be configured per module:
osimple functions:
oHigh Speed Counter Simple
oEvent_Latch I/O
ocomplex functions:
oHigh Speed Counter Main
oFrequency Generator (FreqGen)
oPulse Width Modulation (PWM)
When an I/O is not used by an expert function, it can be used as a regular I/O.
NOTE:
oWhen a regular input is used as Run/Stop, it can not be used by an expert function.
oWhen a regular output is used as Alarm, it can not be used by an expert function.
For more details, refer to Embedded expert I/O Configuration.
To add an Expert function (Event_Latch, HSC, PWM or Frequency Generator) to your controller, select the Expert function you want in the Hardware Catalog, drag it to the Devices tree, and drop it on one of the highlighted nodes.
For more information on adding a device to your project, refer to:
• Using the Drag-and-drop Method
• Using the Contextual Menu or Plus Button
To add an Encoder function, select the Standard Encoder in the Hardware Catalog, drag it to the Devices tree, and drop it on one of the highlighted nodes.
The following expert functions can be added:
|
Function |
Description |
Refer to... |
|---|---|---|
|
Event_Latch |
With the Event_Latch function, the Embedded Expert inputs can be configured as event or latch. |
|
|
HSC |
The HSC functions can execute fast counts of pulses from sensors, encoders, switches, etc. that are connected to dedicated fast inputs. |
|
|
PWM Frequency Generator |
The PWM function generates a square wave signal on dedicated output channels with a variable duty cycle. The Frequency Generator function generates a square wave signal on dedicated output channels with a fixed duty cycle (50%). |
|
|
Encoder |
The goal of this function is to connect an encoder to acquire a position. This function can be implemented on an Embedded Expert I/O interface and an Hardware Encoder interface. The Encoder can be Incremental or absolute SSI on an Hardware Encoder interface. The Embedded Expert I/O interface supports only an Incremental Encoder. You can configure a linear or rotary axis for incremental encoder. |
Expert functions assignment according to the interface (columns exclude each other):
|
I/F Interface |
Expert Functions |
|||||
|---|---|---|---|---|---|---|
|
Simple functions: oFast I/O: Event or latched oHSC Simple |
HSC_Main |
SM_Encoder |
Encoder |
PWM |
Frequency Generator |
|
|
DM72F0 |
Up to 4 |
1 |
1 |
1 |
1 |
1 |
|
DM72F1 |
Up to 4 |
1 |
1 |
1 |
1 |
1 |
|
Encoder |
Not allowed |
Not allowed |
1 |
1 |
Not allowed |
Not allowed |
For more details, refer to Expert I/O Mapping.
Expert Function I/O within Regular I/O
Expert Function I/O within Regular I/O:
oInputs can be read through memory variable standard even if configured in expert function.
oAn Input can not be configured in an expert function if it has already been configured as a Run/Stop.
oAn Output can not be configured in an expert function if it has already been configured as an Alarm.
o%Q will not have any impact on reflex output.
oShort-Circuit management still applies on all outputs. Status of outputs are available.
oAll I/O that are not used by expert functions are available as fast or regular I/O.
When inputs are used in expert functions (Latch, HSC,…), integrator filter is replaced by anti-bounce filter (refer to the Modicon LMC058 Motion Controller Hardware Guide). Filter value will be configured in expert function screen.
