Siemens Simatic S5-101U Programming Instructions Manual

SIEMENS
Pr~gramma~ble Controller
Programming I n s t r u c t i o n s
Order No.: G W A 4NEB 810 2120-02 a
Fig. 1 S5-101U programmable c o n t r o l l e r
CONTENTS Page Page
THE PROGRAMMING LANGUAGE
4.2.1
STEP 5 programming language 1.1 4.2.2
Program s t r u c t u r e
1.1
4.2.3
PRINCIPLE OF OPERATION 4.2.4
O F THE PC
Program processing 2.1
"RUN and "STOP" modes 2.2 5.
Memor i es 2.2 5.1
5.1.1
NOTES O N PROGRAM DEVELOPMENT 5.1.2
Power-up 3.1 5.1.3
B a t t e r y mon i t o r i ng
3.2 5.1.4
Ren t e n t i v e / n o n - r e n t e n t i v e 5.1.5
f l a g s 3.2 5.1.6
I n t e r r u p t processing 3.2
I n t e r c o m p a t i b i l i t y between
5.1.7
LAD, CSF and STL 3.4 5.1.8
Operation i n the SINEC L 1 3.7 5.2
l o c a l area network 5.2.1
5.2.2
PROGRAM START-UP 5.2.3
Loading and dumping a
5.2.4
program
4.1
5.2.5
Program t e s t
4.2
6.
Search f u n c t i o n
S i g n a l s t a t u s d i s p l a y
F o r c i n g o f o u t p u t s and
f l a g s
F o r c i n g o f t i m e r s and
counters
PROGRAMMING EXAMPLES
B a s i c o p e r a t i o n s
B i n a r y l o g i c o p e r a t i o n s
S e t t i n g / r e s e t t i n g o p e r a t i o n s
Load and t r a n s f e r o p e r a t i o n s
Timer f u n c t i o n s
Counter f u n c t i o n s
Comparison ( r e l a t i o n a l )
o p e r a t i o n s
A r i t h m e t i c o p e r a t i o n s
Other f u n c t i o n s
Supplementary o p e r a t i o n s
Logic o p e r a t i o n s (word mode)
Conversion f u n c t i o n s
S h i f t o p e r a t i o n s
Jump o p e r a t i o n s
Cond i t i on codes
OPERATION SET