GT panel instructions
1134
Part IV Tool Instructions
GT_ActivateScreen
Control the GT panel screen
PLC types see page 1327
Input variable Data type Function
wScreenNumber
WORD
Screen number
tComTimeOut
TIME
Communication timeout
Input/output variable Data type Function
bDisableUserChange Disable screen change by touch operation on GT
bActivateScreen
BOOL
Activate new screen
dutGTBitArea
GT_BasicComBitArea
GT basic communication bit area
dutGTWordArea GT_BasicComWordArea GT basic communication word area
Output variable Data type Function
bError
BOOL
Turns on when the screen is not switched within
the communication timeout
Description
Function block to activate or change a specified GT screen from the PLC using the variables
described in the table for data types.
Data types
Example
In this example the function has been programmed in ladder diagram (LD) and structured text
(ST).The same POU header is used for all programming languages.
POU header
All input and output variables used for programming this function have been declared in the POU
header.