Siemens S5-100U - A.1.4 Evaluation of CC 1 and CC 0

Operations List, Machine Code and Abbreviations S5-100U
* 1 RLO dependent ? 2 RLO affected ? 3 RLO reloaded ?
1) RLO is set to “1”
Y
1)
Oper-
ation
(STL)
Permissible
Operands
RLO*
1
Function
2 3
Block Call Operations and Return Operations
JU OB
JC OB
Call an organization block
unconditionally.
Call an organization block
conditionally.
N N Y
Y Y
Arithmetic Operations
ADD BF Add byte constant (fixed point)
to ACCU 1.
Add fixed-point constant
(word) to ACCU 1.
ADD KF
N N N
N N N
-- -- 187
-- -- 194
Jump Operation
JUR
Jump at random within a
function block (jump distance
-32768 to + 32767)
N N N -- -- 131
-- -- 58
-- -- 104
CPU 103
MA02 MA03
Execution Time in µs
CPU 100 CPU 102
68
35
3.35
3.35
82
STS
TAK
Stop operation. Program pro-
cessing is interrupted imme-
diately after this operation.
Swap the contents of ACCU 1
and ACCU 2.
N N N
N N N
-- --
-- -- 74 57
Other Operations
A.1.4 Evaluation of CC 1 and CC 0
CC 1
Arithmetic
Operations
Digital
Logic
Operations
CC 0
Comparison
Operations
Shift
Operations
Conversion
Operations
0 0 Result
= 0
Result
= 0
0 1 Result
< 0
1 0 Result
> 0
Result
0
ACCU 2
= ACCU 1
shifted
bit = 0
ACCU 2
< ACCU 1
Result
< 0
ACCU 2
> ACCU 1
shifted
bit = 1
Result
> 0
A-14 EWA 4NEB 812 6120-02