Siemens S7 series PLC transfer instructions

FBDTerminal Description: EN--allows inputsIN--source data inputPurpose OUT--output operandsENO--allows the output side Statement List:                     A I 0.0                    JNB _0001                    L MW 10                    T DBW 12                    SET // make RLO 1                    SAVE // make BR 1                    CLR           _0001: A BR                       = Q 4.0

PLC Siemens S7 series counter

Terminal Description:CU - count inputCD - minus counting inputS - preset inputPV - setting the initial countR - Reset inputQ - counter status outputCV - current output count value (hexadecimal format)BCD-- output current count value (BCD format)FBD A     I 0.0CU    C 10          A     I 0.1CD    C 10           A     I 0.2S     C 10                         L     C#55           … Continue reading PLC Siemens S7 series counter

Siemens S7 series PLC Extended Pulse Timer

A     I 0.0               L     S5T#2s                       SE    T5                           A     I 0.1               R     T 5                          A     T 5               =     Q 4.0  FBD

Siemens S7 PLC instructions FR series Enable Timer

A   I 2.0               FR  T1                          A   I 2.1              L   S5T#10s                     SP  T1                         A   I 2.2              R   T1                         A   T1              =   Q4.0 

Siemens S7-300 PLC Logic inversion ladder diagram

FBDLADA   I 1.0                   A   I 1.1                   NOT                   A(                   A   I 1.2                   A   I 1.3                   NOT                   O   I 1.4                    )                 =   Q 4.0