Objectives
Introduction
Content
- Transferring to the PLC without symbols selected
- Quick Mode is chosen when sending changes of a Function Block online edit
- Select symbols when downloading the program
- Manually download the source code after an online edit when using Quick Mode. Choose Program - Online Edit - Transfer FB Source. CX-Programmer will prompt to automatically download the source code if an attempt is made to disconnect while only the object code has been transferred with Quick Mode.
Manual method:
CX-Programmer prompt if offline is attempted before source code is transferred:
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IMPORTANT: If only the object code is transferred to a PLC and CX-Programmer is suddenly or unexpectedly disconnected from the PLC, it may not be possible to upload a program from the PLC. When making online edits to Function Blocks and using Quick Mode, always download the source code before disconnecting communications with the PLC (going offline). Also, always select symbols when transferring a project that includes Function Blocks. |
If a PLC has Function Blocks loaded without symbols or source code, uploading can be difficult. There is a recovery mechanism used by CX-Programmer if an abrupt disconnection occurred after a Quick Mode transfer without transferring the source code. In this case, CX-Programmer will automatically back up the project and include an .FBK file used to re-establish FB source code when opening the affected project. If a PLC program including FBs was transferred without symbols, there may be no way to upload the project successfully - contact your local Omron representative for more information.
Summary
References