DBGet() fails with TypeError: Wrong arguments about node-snap7 HOT 5 CLOSED

Hey, I looked at the code and yes there is a bug that needs to be fixed. I never had the chance to test this function because I only own a S71200/1500. You can use the command until I fixed it if you use var res = s7client.DBGet(100, 65535); The second parameter should be hidden in the lib and describes the maximum size for a DB (AFAIK).

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Thanks for your very fast response!!!
I now tried with the second parameter and it seems to work, unfortunately my sps also does not
support that function ;-) (Got an error response #20971520 - CPU : Function not available).

So I will work with DBReads and DBWrites.

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fixed in 4bd69dd

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Hello, I'm using the same method DBGet(3) but the library is throwing me this:

Function not available (20971520)

wich is preatty much the same case and I do have the latest version of the library.

1.0.6

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Your error is from the PLC itself and not the library. Not all Siemens PLCs support all functions. See http://snap7.sourceforge.net/compatibility.html

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