Operations List, Machine Code and List of Abbreviations
S5-90U/S5-95U
*
1 RLO dependent ?
2 RLO affected ?
3 RLO reloaded ?
1)
RLO is set to ”1”.
Y
1)
Y
1)
Y
1)
Y
1)
>F
22
Compare two fixed-point
numbers for ”greater than”:
If ACCU 2 > ACCU 1, the
RLO is ”1”. CC 1 / CC 0 are
affected.
Block Call Operations
JU
66
Jump unconditionally to a
program block.
PB
JU
68
Jump unconditionally to a
function block.
FB
JU
66
Jump unconditionally to a
sequence block.
SB
Oper-
ation
(STL)
Permissible
Operands
RLO*
1
S5-90U
Execution Time in
µ
s
Onboard
Ext. I/O
Function
2
3
N
Y
N
N
N
Y
N
N
Y
N
N
Y
S5-95U
Execution Time in
µ
s
Onboard
Ext. I/O
22
>=F
22
Compare two fixed-point
numbers for ”greater than or
equal to”: If ACCU 2
ACCU 1, the RLO is ”1”.
CC 1 / CC 0 are affected.
<F
22
Compare two fixed-point
numbers for ”less than”:
If ACCU 2 < ACCU 1, the
RLO is ”1”. CC 1 / CC 0 are
affected.
<=F
22
Compare two fixed-point
numbers for ”less than or equal
to”: If ACCU 2 ACCU 1, the
RLO is ”1”. CC 1 / CC 0 are
affected.
N
Y
N
N
Y
N
N
Y
N
22
22
22
Comparison Operations (cont.)
63
65
JC
64
Jump conditionally to a
program block.
PB
JC
67
Jump conditionally to a
function block.
FB
JC
Jump conditionally to a
sequence block.
SB
C
30
Call a data block.
DB
G
Generate or delete a data
block.
DB
Y
Y
Y
Y
Y
Y
N
N
N
N
N
Y
68
70
68
30
109
Return Operations
BE
37
Block end (termination of a
block)
BEC
38
Block end, conditional
N
N
Y
Y
Y
42
43
A-6
EWA 4NEB 812 6115-02b
Содержание SIMATIC S5-90U
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