The programming language of the IBHsoftec S7-SoftPLC 315and S7-SoftPLC 416 controls is STEP®7 and can be made with the programming tools S7 for Windows® or STEP®7 from Siemens. The complete instruction set of the STEP®7 language is supported.
The S7-SoftPLC 315 has the complete instruction set of the SIMATIC® S7-315 CPU.
The S7-SoftPLC 416 has the complete instruction set of the SIMATIC® S7-416 CPU.
Bit logic instructions
| Instruction |
Operand |
Description
|
| A |
|
AND with a scan to "1"“
|
| AN |
|
AND with a scan to "0"
|
| O |
|
OR with scan to "1"
|
| ON |
|
OR with scan to "0"
|
| X |
|
Exclusive-OR with a scan to "1"
|
| XN |
|
Exclusive-OR with a scan to "0"
|
| |
I |
of an input
|
| |
Q |
of an output
|
| |
M |
of a memory
|
| |
L |
of a local data bit
|
| |
T |
of a timer
|
| |
C |
of a counter
|
| |
DBX |
of a data bit
|
| |
DIX |
of an instant data bit
|
| ==0 |
|
result equal zero
|
| <>0 |
|
result unequal zero
|
| >0 |
|
result greater than zero
|
| >=0 |
|
result greater or equal zero
|
| <0 |
|
result less than zero
|
| <=0 |
|
result less or equal zero
|
| UO |
|
invalid result
|
| OV |
|
overflow
|
| OS |
|
overflow (saving)
|
| BR |
|
binary result
|
Other boolean logic instructions
| Operation |
Operand |
Description
|
| A( |
|
AND left parenthesis
|
| AN( |
|
AND NOT left parenthesis
|
| O( |
|
OR left parenthesis
|
| ON( |
|
OR NOT left parenthesis
|
| X( |
|
Exclusive OR left parenthesis
|
| XN( |
|
Exclusive OR NOT left parenthesis
|
| ) |
|
Right parenthesis
|
| O |
|
OR-ing AND operations
|
| NOT |
|
Negate RLO
|
| SET |
|
Set RLO to "1"
|
| CLR |
|
Set RLO to "0"
|
| SAVE |
|
Save RLO to the BR bit
|
| Operation |
Operand |
Description
|
| = |
|
Assign value of RLO
|
| S |
|
Set
|
| R |
|
Reset
|
| FP |
|
Positive edge detection
|
| FN |
|
Negative edge detection
|
| |
I |
of an input bit
|
| |
Q |
of an output bit
|
| |
M |
of a memory bit
|
| |
L |
of a local data bit
|
| |
DBX |
of a data bit
|
| |
DIX |
of a instance data bit
|
Master Control Relay
| Operation |
Operand |
Description
|
| MCRA |
|
Activate MCR
|
| MCRD |
|
Deactivate MCR
|
| MCR( |
|
Open MCR zone
|
| )MCR |
|
Close MCR zone
|
Load / Transfer instructions
| Operation |
Operand |
Description
|
| L |
|
Load operand
|
| T |
|
Transfer operand
|
| |
IB |
Input byte
|
| |
IW |
Input word
|
| |
ID |
Input double word
|
| |
QB |
Output byte
|
| |
QW |
Output word
|
| |
QD |
Ouput double word
|
| |
MB |
Memory byte
|
| |
MW |
Memory word
|
| |
MD |
Memory double word
|
| |
LB |
Local data byte
|
| |
LW |
Local data word
|
| |
LD |
Local data double word
|
| |
DBB |
Data block byte
|
| |
DBW |
Data block word
|
| |
DBD |
Data block double word
|
| |
DIB |
Instance data block byte
|
| |
DIW |
Instance data block word
|
| |
DID |
Instance data block double word
|
| |
STW |
Status word
|
| L |
const |
Load constant value
|
| L |
#Pointer |
Load pointer
|
| L |
T |
Timer
|
| LC |
T |
Timer (BCD coded)
|
| L |
Z |
Counter
|
| LC |
Z |
Counter (BCD coded)
|
| L |
DBNO |
Data block number
|
| L |
DBLG |
Data block length
|
| L |
DINO |
Instance data block number
|
| L |
DILG |
Instance data block length
|
Peripheral access instructions
| Operation |
Operand |
Description
|
| L |
PIB |
Load peripheral input byte
|
| L |
PIW |
Load peripheral input word
|
| L |
PID |
Load peripheral input double word
|
| T |
PQB |
Transfer peripheral output byte
|
| T |
PQW |
Transfer peripheral output word
|
| T |
PQD |
Transfer peripheral output double word
|
Accumulator instructions
| Operation |
Operand |
Description
|
| PUSH |
|
Push accumulators upwards
|
| POP |
|
Push accumulators downwards
|
| ENT |
|
Push accumulators (without A1) A2->A3, A3->A4
|
| LEAVE |
|
Push accumulators (without A1) A4->A3, A3->A2
|
| TAK |
|
Change ACCU1 with ACCU2
|
| CAW |
|
Change ACCU1 bytes 0 and 1
|
| CAD |
|
Change ACCU1 bytes 0 and 3, 1 and 2
|
Shift and rotating instructions
| Operation |
Operand |
Description
|
| SLW |
|
Shift ACCU1-L left (word shift)
|
| SLD |
|
Shift ACCU1 left (double word shift)
|
| SRW |
|
Shift ACCU1-L right (word shift)
|
| SRD |
|
Shift ACCU1 right (double word shift)
|
| SSI |
|
Shift ACCU1-L right (word shift with sign)
|
| SSD |
|
Shift ACCU1 right (double word shift with sign)
|
| RLD |
|
Rotate ACCU1 left (double word)
|
| RLDA |
|
Rotate ACCU1 left through CC1
|
| RRDA |
|
Rotate ACCU1 right through CC1
|
| RRD |
|
Rotate ACCU1 right (double word)
|
| |
const |
Number of places to shift/rotate
|
| |
- |
Number of places to shift/rotate located in ACCU2
|
Timer instructions
| Operation |
Operand |
Description
|
| SP |
T |
Start as impulse
|
| SE |
T |
Start as extendet impulse
|
| SD |
T |
Start as ON-delay
|
| SS |
T |
Start as saving ON-delay
|
| SF |
T |
Start as OFF-delay
|
| R |
T |
Reset timer
|
| FR |
T |
Enable timer
|
Counter instructions
| Operation |
Operand |
Description
|
| CU |
C |
Count up (increment)
|
| CD |
C |
Count down (decrement)
|
| S |
C |
Set counter
|
| R |
C |
Reset counter
|
| FR |
C |
Enable counter
|
Word instructions
| Operation |
Operand |
Description
|
| AW |
|
AND ACCU1-L (AND word)
|
| AD |
|
AND ACCU1 (AND double word)
|
| OW |
|
OR ACCU1-L (OR word)
|
| OD |
|
OR ACCU1 (OR double word)
|
| XOW |
|
Exclusive-OR ACCU (XOR word)
|
| XOD |
|
Exclusive-OR ACCU (XOR double word)
|
| |
const |
with a word or double word constant
|
| |
- |
with ACCU2
|
Arithmetic instructions
| Operation |
Operand |
Description
|
| ==I |
|
Integer values equal
|
| <>I |
|
Integer values unequal
|
| >I |
|
Integer values greater
|
| >=I |
|
Integer values greather or equal
|
| <I |
|
Integer values less
|
| <=I |
|
Integer values less or equal
|
| ==D |
|
Double integer values equal
|
| <>D |
|
Double integer values unequal
|
| >D |
|
Double integer values greater
|
| >=D |
|
Double integer values greater or equal
|
| <D |
|
Double integer values less
|
| <=D |
|
Double integer values less or equal
|
| ==R |
|
Real values equal
|
| <>R |
|
Real values unequal
|
| >R |
|
Real values greater
|
| >=R |
|
Real values greater or equal
|
| <R |
|
Real values less
|
| <=R |
|
Real values less or equal
|
| SIN |
|
Sine of a real value
|
| COS |
|
Cosine of a real value
|
| TAN |
|
Tangent of a real value
|
| ASIN |
|
Arcsine of a real value
|
| ACOS |
|
Arccosine of a real value
|
| ATAN |
|
Arctangent of a real value
|
| SQR |
|
Square a real value
|
| SQRT |
|
Square root a real value
|
| EXP |
|
e to the power of a real value
|
| LN |
|
Natural logarithm of a real value
|
| +I |
|
Integer addition
|
| -I |
|
Integer subtraction
|
| *I |
|
Integer multiplication
|
| /I |
|
Integer division
|
| +D |
|
Double-integer addition
|
| -D |
|
Double-integer subtraction
|
| *D |
|
Double-integer multiplication
|
| /D |
|
Double-integer division
|
| +R |
|
Real addition
|
| -R |
|
Real subtraction
|
| *R |
|
Real multiplication
|
| /R |
|
Real division
|
| MOD |
|
Double integer division (modulo)
|
| + |
const |
Add a constant
|
| +P# |
const |
Add a pointer
|
| DEC |
|
dekrement ACCU1-LL (one byte)
|
| INC |
|
inkrement ACCU1-LL (one byte)
|
Data type conversion instructions
| Operation |
Operand |
Description
|
| ITD |
|
Convert integer to double integer
|
| ITB |
|
Convert integer to BCD
|
| DTB |
|
Convert double integer to BCD
|
| DTR |
|
Convert double integer to real
|
| BTI |
|
Convert BCD to integer
|
| BTD |
|
Convert BCD to double integer
|
| RND |
|
Convert real to double integer (round)
|
| RND+ |
|
Convert real to double integer (round up)
|
| RND- |
|
Convert real to double integer (round down)
|
| TRUNC |
|
Convert reeal to double integer (truncate)
|
| INVI |
|
Invert ACCU1-L (integer)
|
| INVD |
|
Invert ACCU1 (double integer)
|
| NEGI |
|
Negate ACCU1-L (integer)
|
| NEGD |
|
Negate ACCU1 (double integer)
|
| NEGR |
|
Negate ACCU1 (real)
|
| ABS |
|
Absolute value (real)
|
Jump instructions
| Operation |
Operand |
Description
|
| JU |
goal |
Jump unconditional
|
| JC |
goal |
Jump if RLO = 1
|
| JCB |
goal |
Jump if RLO = 1 (save RLO)
|
| JCN |
goal |
Jump if RLO = 0
|
| JNB |
goal |
Jump if RLO = 0 (save RLO)
|
| JBI |
goal |
Jump if BR = 1
|
| JNBI |
goal |
Jump if BR = 0
|
| JZ |
goal |
Jump if compare result = 0
|
| JN |
goal |
Jump if compare result != 0
|
| JP |
goal |
Jump if compare result > 0
|
| JPZ |
goal |
Jump if compare result >= 0
|
| JM |
goal |
Jump if compare result < 0
|
| JMZ |
goal |
Jump if compare result <= 0
|
| JUO |
goal |
Jump if compare result "Unordered Math Instruction"
|
| JO |
goal |
Jump on overflow
|
| JOS |
goal |
Jump on saving overflow
|
| JL |
goal |
Jump distributor
|
| LOOP |
goal |
Loop programming (decrement ACCU1-L and jump if != 0
|
Block call instructions
| Operation |
Operand |
Description
|
| CALL FB |
|
Unconditional call of an FB with parameter transfer
|
| CALL FC |
|
Unconditional call of an FC with parameter transfer
|
| CALL SFB |
|
Unconditional call of an SFB with parameter transfer
|
| CALL SFC |
|
Unconditional call of an SFC with parameter transfer
|
| UC FB |
|
Unconditional call of an FB without parameter transfer
|
| CC FB |
|
Conditional call of an FB without parameter transfer
|
| UC FC |
|
Unconditional call of an FC without parameter transfer
|
| CC FC |
|
Conditional call of an FC without parameter transfer
|
| BEU |
|
End block unconditionally
|
| BEC |
|
End block conditionally (RLO = 1)
|
| BE |
|
End block
|
| OPN |
|
|
| |
DB |
Open data block
|
| |
DI |
Open instance data block
|
| TDB |
|
Exchange data block registers
|
Indirect adressing instructions
| Operation |
Operand |
Description
|
| LAR1 |
|
AR1 laden
|
| LAR2 |
|
AR2 laden
|
| |
MD |
mit Merkerdoppelwort
|
| |
LD |
mit Lokaldatendoppelwort
|
| |
DBD |
mit Datenbausteindoppelwort
|
| |
DID |
mit Instanz-Datenbausteindoppelwort
|
| LAR1 |
|
AR1 laden mit Inhalt aus Akku1
|
| LAR2 |
|
AR2 laden mit Inhalt aus Akku1
|
| LAR1 |
AR2 |
AR1 laden mit Inhalt aus A2
|
| LAR1 |
P# |
AR1 laden mit Zeiger
|
| LAR2 |
P# |
AR2 laden mit Zeiger
|
| TAR1 |
|
Schreibe AR1
|
| TAR2 |
|
Schreibe AR2
|
| |
MD |
in Merkerdoppelwort
|
| |
LD |
in Lokaldatendoppelwort
|
| |
DBD |
in Datenbausteindoppelwort
|
| |
DID |
in Instanz-Datenbausteindoppelwort
|
| TAR1 |
|
Schreibe AR1 in Akku1
|
| TAR2 |
|
Schreibe AR2 in Akku1
|
| TAR1 |
AR2 |
AR1 nach AR2 transferieren
|
| TAR |
|
AR1 mit AR2 tauschen
|
| +AR1 |
|
Addiere Akku1 zu AR1
|
| +AR2 |
|
Addiere Akku1 zu AR2
|
| +AR1 |
P# |
Addiere Pointer zu AR1
|
| +AR2 |
P# |
Addiere Pointer zu AR2
|
Program display and null operation instructions
| Operation |
Operand |
Description
|
| NOP |
0 |
Nulloperation
|
| NOP |
1 |
Nulloperation
|
| BLD |
konst |
Bildaufbau
|
Layout of S7-SoftPLC memory
The memory of S7-SoftPLC 315 and S7-SoftPLC 416 is compatible to the memory of SIMATIC®-control S7-315 or S7-416.
Please note, that the low-order byte has to be interchanged with the high-order byte when accessing this memory with Windows programs.
Layout of SoftPLC system data
The layout of the system data in the system data is compatible to the system data of SIMATIC®-control S7-315 or S7-416.
Integrated organisation blocks
The organisation blocks, listed in the chart below, are executed, if they are programmed:
| OB-Nr |
Kurzbeschreibung
|
| OB 1 |
Hauptprogramm
|
| OB 10 – OB 17 |
Uhrzeitalarm
|
| OB 20 – OB 23 |
Verzögerungsalarm
|
| OB 30 – OB 38 |
Zeitbausteine (zyklischer Aufruf)
|
| OB 80 – OB 87 |
Fehlerbausteine
|
| OB 90 |
Hintergrundbearbeitung
|
| OB 100/OB 101 |
Neustart bzw. Wiederanlauf
|
| OB 121/OB 122 |
Programmierfehler
|
Integrated system functions
All system functions (SFC) relevant for a Software PLC are integrated in S7-SoftPLC.
The chart below shows the available SFCs(in numeric listing)
| SFC-Nr |
SFC-Name |
Kurzbeschreibung
|
| SFC 0 |
SET_CLK |
Setzen der Systemzeit
|
| SFC 1 |
READ_CLK |
Lesen der Systemzeit
|
| SFC 5 (3) |
GADR_LGC |
Logische Basisadresse einer Baugruppe ermitteln
|
| SFC 6 |
RD_SINFO |
Startinformation des aktuellen OBs auslesen
|
| SFC 13 (1) |
DPNRM_DG |
Slave-Diagnose eines DP-Slaves
|
| SFC 14 (2) |
DPRD_DAT |
Konsistente Daten eines DP-Normslaves lesen
|
| SFC 15 (2) |
DPWR_DAT |
Daten konsistent auf DP-Normslave schreiben
|
| SFC 20 |
BLKMOV |
SPS-Variable in Zielbereich kopieren
|
| SFC 21 |
FILL |
SPS-Variable in Zielbereich vorbesetzen
|
| SFC 22 |
CREAT_DB |
Anlegen von Datenbausteinen
|
| SFC 23 |
DEL_DB |
Datenbaustein löschen
|
| SFC 24 |
TEST_DB |
Attribute eines Datenbausteins testen
|
| SFC 25 |
COMPRESS |
Ladespeicher komprimieren
|
| SFC 28 |
SET_TINT |
Stellen eines Uhrzeitalarms
|
| SFC 29 |
CAN_TINT |
Uhrzeitalarm anhalten (nicht ausführen)
|
| SFC 30 |
ACT_TINT |
Uhrzeitalarm freigeben
|
| SFC 31 |
QRY_TINT |
Status des Uhrzeitalarms
|
| SFC 32 |
SRT_DINT |
Starte Verzögerungsalarm
|
| SFC 33 |
CAN_DINT |
Unterbreche Verzögerungsalarm
|
| SFC 34 |
QRY_DINT |
Statusabfrage des Verzögerungsalarms
|
| SFC 36 |
MSK_FLT |
Maskieren eines synchronen Fehlerereignisses
|
| SFC 37 |
DMSK_FLT |
Demaskieren eines synchronen Fehlerereignisses
|
| SFC 38 |
READ_ERR |
Auslesen des Ereignisstatusregister
|
| SFC 39 |
DIS_IRT |
Sperren der Asynchron- und Alarmfehlerbearbeitung
|
| SFC 40 |
EN_IRT |
Freigeben der Asynchron- und Alarmfehlerbearbeitung
|
| SFC 41 |
DIS_AIRT |
Verzögerung höherpriorer Asynchron- und Alarmfehlerbearbeitung
|
| SFC 42 |
EN_AIRT |
Freigabe höherpriorer Asynchron- und Alarmfehlerbearbeitung
|
| SFC 43 |
RE_TRIGR |
Nachtriggern des Watchdogs
|
| SFC 46 |
STP |
CPU Betriebszustand STOP
|
| SFC 49 (3) |
LGC_GADR |
Ermitteln des Steckplatzes einer logischen Adresse
|
| SFC 50 (3) |
RD_LAGADR |
Ermitteln aller logischer Adressen einer Baugruppe
|
| SFC 51 |
RDSYST |
Systemzustandsliste (SZL) auslesen
|
| SFC 64 |
TIME_TCK |
Timer Tick
|
| SFC 81 |
UBLKMOV |
Block Move der nicht unterbrochen werden kann
|
1)The SFC 13 is available only, when the driver Cifcfg.dll is loaded. Furthermore it can only return valid results, if the PROFIBUS® configuration has been created via the S7 for Windows® hardware configuration or the STEP®7 hardware configuration. This is only possible when using the driver CIFCFG.DLL.
2)The SFC 14 and SFC 15 are available only, if they are loaded via the driver CIF30D0.DLL or the driver CIFCFG.DLL.
3)The SFCs can only return valid results, if the PROFIBUS®7 configuration has been created via the S7 for Windows®7 hardware configuration or the STEP®7 hardware configuration. This is only possible when using the driver CIFCFG.DLL.
Integrated system blocks
The system blocks (SFB) relevant for a software PLC are integrated in S7-SoftPLC.
The following system function blocks are supported:
| SFB-Nr |
SFB-Name |
Kurzbeschreibung
|
| SFB 0 |
CTU |
Vorwärtszähler (Counter Up)
|
| SFB 1 |
CTD |
Rückwärtszähler (Counter Down)
|
| SFB 2 |
CTUD |
Vorwärts- und Rückwärtszähler
|
| SFB 3 |
TP |
Zeitimpuls
|
| SFB 4 |
TON |
Einschaltverzögerung
|
| SFB 5 |
TOF |
Ausschaltverzögerung
|
| SFB 32 |
DRUM |
Schaltwerk zur Steuerung von Schrittketten
|
| SFB 52 (4) |
RDREC_DP |
Datensatz lesen
|
| SFB 53 (4) |
WRREC_DP |
Datensatz schreiben
|
4)The SFB 52 and SFB 53 are only available if the driver CIFCFG.DLL is loaded and the entry DPV1=1 is set.
