ISPSoft User Manual

ISPSoft User Manual
‣ Users can use FB_PN in place of PN in a function block, but they have to specify a device, e.g.
M400 in the figure below.
7.3.3 Monitoring the Program in a Function Block
It is the functions block instances in a project that participate in the execution of the program in the
project. If users want to monitor the program in a function block online, they have to open the
window for the function block instance.
If users want to monitor the program in a function block online, they have to open the window for the
function block instance, as shown below. The function block instances below operate independently.
If users open the window for a function block definition, no values will be displayed in the window,
and users can not monitor the program in the function block.
No values are displayed.
*. If users want to modify the program in a function block, they have to open the window for the function block
definition. Please refer to section 7.3.4 for more information.
7.3.4 Modifying the Program in a Function Block
The object produced from a function block definition is a function block instance. The program in a
function block instance can not be modified, but the program in a function block definition can be
modified. After the program in a function block definition is modified, the modification result will be
applied to the new instances produced from the function block definition. The new function block
instances will not be produced until the program is compiled. Likewise, if users want to modify the
program in a function block online, they have to open the window for the function block.
After users double-click a function block definition in the project management, they can modify the
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