snap to connect plc s7-1200 and read data

[gzy354293185]

I want to use s7-1200plc to read data, this is my code

import snap7
plc = snap7.client.Client()
plc.connect('192.168.0.1', 0, 1)
data = plc.read_area(snap7.types.Areas.PA,0,0,1)
print(data)

and this is Error message
b'CPU : Function not available'
Traceback (most recent call last):
File "E:\Holecount\plctest.py", line 21, in
plc.write_area(snap7.types.Areas.MK, 0, 2, a)
File "E:\anaconda\envs\hole\lib\site-packages\snap7\client.py", line 26, in f
check_error(code, context="client")
File "E:\anaconda\envs\hole\lib\site-packages\snap7\common.py", line 92, in check_error
raise Snap7Exception(error)
snap7.exceptions.Snap7Exception: b'CPU : Function not available'

[gzy354293185]

connect is success, just read data error

[swamper123]

Is your setup respecting these 3 points?:

1.    Only global DBs can be accessed.
2.    The optimized block access must be turned off.
3.    The access level must be “full” and the “connection mechanism” must allow GET/PUT.

[gzy354293185]

yes, I've revised everything

[swamper123]

Btw: Why is your code complaining about plc.write_area(snap7.types.Areas.MK, 0, 2, a) in Line 26?
This is not an error in reading sth.!

[gzy354293185]

This is the error at line 26 in the client.py file

[swamper123]

Sry, line 21 in File "E:\Holecount\plctest.py"
This is what the traceback is talking about.
The lines below is just the function which checks, if an error was received.

[gzy354293185]

I just found that I uploaded the wrong code. I'll upload it again when I have time