Siemens special flag

sjumpy

Member
Join Date
Feb 2008
Location
los angeles
Posts
4
Hi. I have just started programming S7-300. I can not find anything about the special flags like for example the flag which is one scan off and then always on ( like M9036 in Mitsubishi PLC). Can any one help me in this matter please?
 
There are non, you have to create them.
eg:
an M0.0
R M0.0
creates an OFF marker

an M0.1
S M0.1

Creates an ON marker

an M0.7
=M0.7

creates a CYCLE marker
 
dear Sjumpy,

u can do it very well as mogie gave u the example, also u can create some clock bits from HWconfiguration.Just Click-right on CPU, go to properties then select Clock-give your free memory byte to make clock byte, u can get 8 types of frequency bits in each 8 bits,
 

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