YASKAWA SGD7C-***AMAA***, Product Manual

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7.6 Debugging Ladder Programs
7.6.1 Ladder Program Runtime Monitoring
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7.6 Debugging Ladder Programs
This section describes debugging with MPE 720.
7.6.1 Ladder Program Runtime Monitoring
You can monitor the execution status of each instruction. Using runtime monitoring requires a
connection to the SERVOPACK.
Instructions where the relay output is ON are displayed in blue.
The current values of the parameter registers of the instructions that are being executed are
also displayed.
7.6.2 Register List Panes
You can monitor the current values of the registers in a continuous area (register map) on any of
the Register List 1, 2, and 3 Panes. Realtime monitoring is possible if the SERVOPACK is
online. You can edit the values.
Displaying the Register Map
The following table gives the meaning of the background colors in the register map.
Use the following procedure to display the register map.
1.
Click one of the tabs for the Register List 1, 2 or 3 Panes.
Select Monitor
−
Register List from the Launcher. The Register List 1 Pane will be displayed.
Note: You can show or hide the Register List 1, 2, and 3 Panes by selecting View
−
Register List
−
Register
List 1 , View
−
Register List 2 , or View
−
Register List 3 from the menu bar.
Current value s of regi s ter s
are di s played.
ON coil s are di s played
in blue.
•
If you use a project link connection, the data in the SERVOPACK is accessed. When the regis-
ter map is displayed, the displayed results do not always match the project file of the linked
project.
If you display the register map when using a project link connection, first always transfer the
data to the project file by clicking the
Read from Controller Button in the Transfer Dialog Box.
•
The register list can display S, I, O, M, C, D, and G registers. However, C registers are read-
only. They can be read but not written.
Green Indicates a register that is used in a ladder program.
Red
Indicates a redundant register (i.e., a register that is used for more than one
data type).
White Unused registers
Important