Inovance H3U Series - Page 29

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2
2 Pre-programming Precautions2.3 Introduction to AutoShop
4) Project uploading/downloading
a) Use a programming cable to connect the PLC to a PC.
b) Choose
Tool
>
Communication Setting
to set the communication mode.
c) Choose
PLC
>
Download/Upload
or click the shortcut buttons to upload or
download the project.
• A non-compiled project will be automatically compiled before downloading. An application project that cannot be
compiled cannot be downloaded.
5) Project debugging
Monitoring mode: Choose
Debug
>
Monitor
from the menu or click the shortcut button to enter
monitoring mode. In this mode, you can monitor the input/output status and current value of elements.
Online modication mode: Choose
PLC
>
Online Edit Mode
from the menu or click the shortcut button
to enter the online modication mode. In this mode, you can modify a user project without stopping
the PLC. After modifying a project, you can directly download the program without stopping the PLC.
Element monitoring: Double-click a subdirectory under Monitoring Table in the
Project Manager
window.
The monitoring table interface is displayed. In monitoring mode, you can check the current element value in
real time.
Using AutoShop to start/stop the PLC: Choose
PLC
>
Run/Stop
from the menu or click the shortcut button
to control the PLC running status.
6) Project execution steps and optimization recommendations
Project execution steps: User projects are scanned from top to bottom and from left to right in cycles.
Project execution sequence and optimization solution:
a) It is recommended that ladder chart with multiple serial contacts be placed above the project.
(There is one step fewer in the right diagram than in the left diagram.)
( )
ķ LD
ĸ LD Ĺ AND
Ļ OUT
ĺ ORB
( )
ķ LD
Ĺ OR
ĺ OUT
ĸ AND
ORB instruction
not required
b) It is recommended that ladder chart with multiple parallel contacts be placed at the left of the
project. (There is one step fewer in the right diagram than in the left diagram.)