Structure DrvDataType is used for the DriveData variable to exchange the data for one drive.
Structure DrvDataType is used for the DriveData variable which must be connected to all function blocks related to the same drive.
Besides the element “sName” all variables should not be written by the user directly. They are read and written within the function blocks. The DrvDataType contains some more internal, invisible variables which are used for internal functionality and not meant for user access.
The following table shows the visible variables of DrvDataType.
|
Variable |
Data Type |
Default value |
Description |
|---|---|---|---|
|
wStatusWord |
WORD |
0 |
Actual status word from drive |
|
iActValue1 |
INT |
0 |
Actual value1 from drive – mostly equal speed |
|
iActValue2 |
INT |
0 |
Actual value2 from drive – mapping is made in drive configuration |
|
wControlWord |
WORD |
0 |
Control word to drive |
|
iRefValue1 |
INT |
0 |
Reference value1 to drive – mostly speed reference |
|
iRefValue2 |
INT |
0 |
Reference value2 to drive – mapping is made in drive configuration |
|
xOnline |
BOOL |
FALSE |
Connection established – set in Modbus communication function block after successful reading and writing one Modbus job |
|
xCtrlBlockUsedf |
BOOL |
FALSE |
A control block is used to generate the control word, ref1 and ref2 values |
|
sName |
STRING |
‘Default Drive Name’ |
Name for drive, which can be set by user directly to DriveData variable |