Examples

Example 1: with a B&R PLC array

There is a global variable on the B&R PLC

long _GLOBAL arVariableLong[200];

see the illustration below for the definition on the control system side.

Creating the control system variable: by clicking the Select button, you can select the mapping variable created above from a list.
Attention: the value in the input field 'Indices:' must be entered manually !
You can also place an array variable in the control system over a B&R PLC structure. This means that an unformatted binary dump of the structure will be read and written.

An array variable is created via the variable dialog in the control system. Enter the size of the structure in the input field "Indices" (dimension).

If it is an "i/u8Bit" array, you have to enter the size of the structure in Bytes in the input field "Indices".

If it is an "i/u16Bit" array, you have to enter the size of the structure in Bytes/2 in the input field "Indices".

If it is an "i/u32Bit" array, you have to enter the size of the structure in Bytes/4 in the input field "Indices".

If it is a "float" array, you have to enter the size of the structure in Bytes/4 in the input field "Indices".

Example: if you want to read out a structure that has a size of 20 Bytes in the PLC with a double word array in the control system, you have to enter the value '5' in the "Indices" field.

!The number of Bytes contained in a structure or an array can be found out in the PVI browser in the driver configuration (Column: Count).

Example2: with a B&R PLC structure

There is a global variable on the B&R PLC

struct strukt1 _GLOBAL struktTest;

its size is 156 Bytes. See the illustration below for the definition on the control system side.
Creating the variable in the control system: by clicking the Select button, you can select the mapping variable created above from a list (only works for type i8/u8).
ATTENTION: you have to manually enter the value in the input field 'Indices'!

Using the datatype CPU status

The datatype "CPU status" determines the last valid CPU status and returns it as a value.

Possible CPU status values:

Status name	Status value
WarmStart	0: Status of B&R: OK
ColdStart	1: Status of B&R: OK
Reset	=2: Status of B&R: Error
Reconfiguration	3: Status of B&R: Error
NMI	=4: Status of B&R: Error
Diagnostics	5: Status of B&R: Error
Error	=6: Status of B&R: Error
ConnectionError	7: Status of COPALP: Error
Unknown Status	65535: Status of COPALP: Error

Info: for each CPU only one status variable can be created.