Controller: Common settings

Nov Ram active:

If checked, retain data (VAR_GLOBAL RETAIN  var1 AT%MB…  END_VAR) gets copied to the NOVRAM of the BC/BX controller.

Store BC Controller State in Memory:

If this box is checked, the K-Bus and fieldbus status informations get copied into the memory area (%MB…) of the BC/BX controller. See Beckhoff Information System: "GetFBusStatus" resp. "GetTBusStatus".

Compare terminal configuration:

The Bus Terminal configuration gets stored during boot project creation. If the physical Bus Terminal configuration gets changed after boot project creation, the boot project wouldn't start. If this box is unchecked, the boot project would start even with changed hardware configuration [default = checked].

Ams block confirmation:

If a TwinCAT version >= 2.9 gets used, this box needs to be checked for compatibility reasons. 

Read system clock:

The cycle tick counter gets copied into the memory range (%MB…) of the BC/BX controller.  See Beckhoff Information System: "GetSysTick"

Clear outputs on breakpoint:

Outputs get cleared when the PLC program hits a Breakpoint.

PLC terminal bus update:

ICO: inputs get read prior to the PLC cycle. Outputs get written after the PLC cycle [default].
IOC: inputs get read and outputs get written prior to the PLC cycle.
CIO: inputs get read and outputs get written after the PLC cycle.

Offset PLC-input in fieldbus interface:

Fieldbus input data are mapped starting from PLC variable offset   (Default %IX128)

Length PLC-inputimage in fieldbus interface:

Length of fieldbus input data (Default 16 Byte)

Offset PLC-output in fieldbus interface:

Fieldbus output data are mapped starting from PLC variable offset   (Default %QX128)

Length PLC-outputimage in fieldbus interface:

Length of fieldbus output data (default 16 Byte)

Number of remanent bytes:

Number of remanent data (default 64 - %MB0-%MB63)

PLC cycle time [ms]:

PLC cycle time (default BCxx00 : 5 ms, BC9000 : 20 ms)

PLC background time [ms]:

Enable cycletime measurement :

With this checkbox, the cycle time measurement on the BC/BX can be activated.

Minimal PLC cycletime [ms]:

Displays the min. measured PLC cycle time of the controller.

Maximal PLC cycletime [ms]:

Displays the max. measured PLC cycle time of the controller.

Current PLC cycletime [ms]:

Displays the currently measured PLC cycle.

Average PLC cycletime [ms]:

Displays the average PLC cyle time (average cycle time of the last 200 measurements) of the BC/BX controller.