gt2507w-wtsd "no ladder programs have been read" on GT2507W-WTSD

[Siscodjo]

Hello,

I have a project using GT2507W-WTSD and one of the function is displaying alarm and also the ladder that related to the alarm. Unfortunately, I stuck with the problem to display the ladder as attached pictures. 

Always failed to read the displayed ladder, only device comment succeeded. Hope somebody willing to guide me to resolve this problem. 

Any help is appreciated

[Parky]

The only things I know is 

1. SD card or USB needs to be fitted on PLC

2. If any FB's i.e. structured lad/FBD cannot be read

Must be standard ladder.

[Siscodjo]

Parky, thank you.

1. SD Card already attached in the HMI.

2. This is new for me. Thanks for your sharing.

[Crossbow]

If it cannot read the programs from the PLC, then maybe the PLC or the program has a password?  Or as Parky mentioned, if the program was written in Structured Ladder.  Do you have a copy of the PLC project?

[Siscodjo]

Hi Crossbow, 

There is no password in  the program.

And just found from the GOT monitor manual, there are points of limitations to display ladder in the hmi, one of them is about the ladder program type, should not be ladder with label (must be simple ladder) and no function block as Parky said.

Now I have to re-write the ladder to simple ladder because no other way such as converter software.

[Parky]

The reason is that the ladder display is only for simple ladder, a structured project although compiles into the IL code some cannot be translated.

[Siscodjo]

You are correct Parky, therefore I haveto rewrite it in simple ladder type without label. Or you can suggest any way to convert it?

 

[Siscodjo]

FYI

[Crossbow]

Personally I would leave it structured and use labels, the only drawback is the ladder viewer on the GOT.  Label based programming offers a lot of things that you cannot do in a simple project, like arrays and structured data types.

[Siscodjo]

9 hours ago, Crossbow said:

Personally I would leave it structured and use labels, the only drawback is the ladder viewer on the GOT.  Label based programming offers a lot of things that you cannot do in a simple project, like arrays and structured data types.

Crossbow,

Thanks for the advice, can you guide me which the GOT setting must be altered?  

 

[Parky]

It looks like it can only do it using simple ladder for example if any function blocks are used then it cannot display them & also cannot display labels (unless newer GTDesigner version is availlable than the one I have allows it).

[Crossbow]

14 hours ago, Siscodjo said:

Crossbow,

Thanks for the advice, can you guide me which the GOT setting must be altered?  

 

I never said a GOT setting should be modified.  What I said was the benefits of structured programming are greater than using the ladder monitor on the GOT, so I would use structured programming and do without the ladder monitor.