Hi!

Can you explain that how you get in javascript in plc or how they have connection together.

ohmmade

I have created short video and demo project download with POST and GET examples.

Maybe helpful to someone.

Using the SIMATIC S7-1200 & S7-1500 HTTP Communication Library: LHTTP - YouTube

 Hi,

did you read the complete topic?! Read all posts made before your post, try the suggestions/ steps and tell us afterwards if you were successful or not. If not, then tull us exactly what kind of setup you have (Order number of hardware), what you did, where you can't get further - that's the only way we can really help you, because then we know what your exact problem ist. Generic questions are too "shallow".

Could you tell me in which block you made this change?

j.ubink

For who is still struggling with this library:

• Try using 0 (zero) as hwID.
• The manual of this library states this library is meant for S7-1500 PLC's, but I got HTTPS-connections working on a S7-1200 (1212C, firmware v4.4.1).
• If you are using this to send messages to an API, it might be necessary to edit the library to change the headers. I had to change "Accept: text/html" to "Accept: application/json".
• If you use HTTPS, you need to add certificates, which you can do after protecting the project with a password. Instructions are in the manual.

I hope this helps others.

Could you tell me in which block you made this change?

New question published by AutoGen_5690503 is split to a separate thread with the subject LHTTP - GET error 16#8601.

Best regards
Jen_Moderator