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5. Initial Programming

255

Requisition disabling variables declaration

[Device Name]_DISABLE_[Requisition Number] : BOOL;

Where:

Device name: Name that shows on TreeView to the MODBUS device.

Requisition Number: Requisition number tha was declared on the MODBUS device requisition

table following the sequence from up to down, starting on 0001.

Example:

Device.Application.Disables

VAR_GLOBAL

MODBUS_Device_DISABLE_0001 : BOOL;

MODBUS_Device_DISABLE_0002 : BOOL;

MODBUS_Device_DISABLE_0003 : BOOL;

MODBUS_Device_1_DISABLE_0001 : BOOL;

MODBUS_Device_1_DISABLE_0002 : BOOL;

END_VAR

The automatic generation through button “Generate Disabling Variables” only create variables, and

don’t remove automatically. This way, in case any relation is removed, its respective disabling

variable must be removed manually.

The “Disables” GVL is editable, therefore the requisition disabling variables can be created manually

without need of following the model created by the automatic declaration and can be used both ways

at same time, but must always be of BOOL type. And it is need to take care to do not delete or

change the automatic declared variables, cause them can being used for some MODBUS device. If

the variable be deleted or changed then an error is going to be generated while the project is being

compiled. To correct the automatically declared variable name, it must be followed the model

exemplified above according to the device and the requisition to which they belong.

Sending a project to the CPU and changing it in “RUN”. Through “Disables” GVL it is possible to

watch and change disabling variables, if the variable values are TRUE it means that the requisition to

which the variables belongs is disabled and the opposite is valid when the variable value is FALSE.

Figure 5-23. Disable GVL in Online Mode

GVL IOQualities

In “IOQualities” GVL, are declared the quality variables of I/O modules declared on CPU’s bus. This

GVl is not editable and the variables are automatically declared as “LibDataTypes.QUALITY” type

ALTUS Nexto NX3004 User Manual

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