Example Of Setting An Error Bit Using Decode For Lad, Stl, And Fbd; Example Of Converting The Error Bit Into An Error Code Using Encode For Lad, Stl, And Fbd - Siemens SIMATIC S7-200 System Manual

SIMATIC Instructions
Decode, Encode Examples
I3.1
EN
AC2 IN
AC2 contains the error code 3. The DECO instruction
sets the bit in VW40 that corresponds to this error code.
Figure 9-43
I3.1
AC2
AC2 contains the error bit. The ENCO instruction converts the
least significant bit set to an error code that is stored in VB40.
Figure 9-44
9-136
LAD
DECO
Set the bit that corresponds
ENO
to the error code in AC2.
OUT VW40

Example of Setting an Error Bit Using Decode for LAD, STL, and FBD

LAD
ENCO
Convert the error bit in AC2
EN ENO
to the error code in VB40.
IN OUT VB40
Example of Converting the Error Bit into an Error Code Using Encode for LAD,
STL, and FBD
LD I3.1
DECO AC2, VW40
I3.1
AC2
Application
AC2
15
VW40
0000 0000 0000
LD I3.1
ENCO AC2, VB40
I3.1
AC2
Application
AC2
VB40
S7-200 Programmable Controller System Manual
STL
FBD
DECO
EN ENO
IN OUT VW40
3
DECO
3 0
1000
STL
FBD
ENCO
EN ENO
IN OUT VB40
15 9 0
1000 0010 0000 0000
ENCO
9
A5E00066097-02