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Industrial communication
BY: Mahmoud Hussein
Transmission modes
 Simplex
 Half duplex
 Full Duplex
Network elements
 Master : has unique address.
 Slave : has unique address.
 Protocol
 Network subnet
 Data exchange area
 Data exchange tools.
Basic Requirements
 Software (simatic manager)
 Pronet(included in simatic manager)
 GSD files (general station description)
 http://www.gsd-db.com
Communication types
Serial communication
 RS232
 RS 485
 CAN
 ETHERNET
 USB
 HDMI
RS232
RS-485
RS-485
Modbus terminology
Modbus terminology
ModBus
 Physical layer can be
 RS 232 – RS485 –RS422 (communication mode: ASCII -RTU).
 ETHERNET (communication mode: TCP)
 RTU VS ASCII
 RTU send more Data on same baud rate.
 ASCII is more used on industry.
 Finally select mode depend on device mode supported.
ModBus
Networking with distributed input/output
Networking with distributed input/output
Profibus communication between S7300
and S7200 using EM277
 Component
 Cpu 314c-2DP
 EM277
 CPU 226
EM 277
Process
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
19/1
8
SIEMENS
Objectives
- Know Communication Methods.
- Configure GD Communication Files.
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
20/1
8
CP5511
Transmission rate 9.6 kbit/s to 12 Mbit/s
Interfaces 9-pin Sub D socket
for connection to
PROFIBUS
Module format : PCMCIA slot Type II
CP5611
Transmission rate 9.6 kbit/s to 12 Mbit/s
Interface 9-pin Sub-D socket
for connection to PROFIBUS
Module format : PCI card
Space requirements : 1 x PCI slot
CP Used For MPI Comm. With PC & Laptop
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
21/1
8 Communication
Services
Data Volume
Interfaces
S7-Communication Functions
Up to 22 Byte (S7-300)
Up to 54 Byte (S7-400)
Global Data S7 Basis
Communication
S7 Extended
Communication
Up to 76Byte Up to 16 Byte (S7-300)
up to 64 Byte (S7-400)
MPI MPI MPI
CPs for
PROFIBUS
and Ethernet
MPI Communication Method
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
22/1
8 - Data communication: 187.5 kbit/s to 12 Mbit/s
- Up to 32 bus nodes and up to 32 active
connections per CPU
- Communication services:
. PG/OP communication functions
. Global data communication for small data
volumes, without a programming
overhead
. S7 Basic communication for small
data volumes up to 76 bytes
MPI Communication
Add.= 1
Add.= 0
Add.= 3
Add.= 2
Add.= 4
Add.= 5
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
23/1
8
Inserting Another Station - S7 300
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
24/1
8
Edit Hardware For The other Station - S7 300
Two station
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
25/1
8
Edit Hardware For The other Station - S7 300
The address of the CPU for
the other station must have
a different address
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
26/1
8
Configure The Network
Click on this icon to
edit the network
configuration
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
27/1
8
Connectiong CPU To The MPI Network
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
28/1
8
Compiling & Checking The Connection
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
29/1
8
PC address: 0
CPU-MPI
address: 2
PC address: 1
CPU-MPI
address: 3
Connect CPU & PCs Using MPI Cables
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
30/1
8
Start Global Data File
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
31/1
8
Define The CPUs
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
32/1
8
Assigne Sender & Receiver
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
33/1
8
Compile & Check
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
34/1
8
Download GD File To CPU
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
35/1
8 SFC
SFC 65
NAME Short Description
X_SEND Send block for sending data to the X_RCV (Client) block
SFC 66 X_RCV Receive block for receiving the data of the X_SEND block
X_GET Read data from the partner PLCSFC 67
X_PUT Write data to the partner PLCSFC 68
X_ABORT Abort existing connectionSFC 69
I_GET Read data from the partner CPUSFC 72
I_PUT Write data to the partner CPUSFC 73
I_ABORT Abort connection to the partner CPUSFC 74
S7 Basic Communication
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
36/1
8
SFC65 (X_SEND)
REQ RET_VAL
BUSYCONT
DEST_ID
SD
REQ_ID
CALL SFC 65
REQ:= M4.0 //Trigger
CONT:= FALSE //Disc. connection
DEST_ID:= W#16#4 //MPI_addr.
REQ_ID:= DW#16#1 //Identifier
SD:= P#M20.0 BYTE 10 //Variable
RET_VAL:= MW40 //Error code
BUSY:= M 4.1 //SFC active
SFC66 (X_RSV)
EN_DT RET_VAL
REQ_ID
NDA
RD
CALL SFC 66
EN_DT:= TRUE //Trigger data trans.
RET_VAL:= MW 50 //Error code
REQ_ID:= MD52 //Job ID
NDA:= M40.0 //Data exist
RD:= P#M20.0 BYTE 10 //Variable
S7 Basic Communication Using SFC 65 - 66
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
37/1
8 - Data exchange using MPI, Profibus or Industrial Ethernet
- Configuring the connections via connection table
-The connections are configured during warm restart and exist
permanently (even in STOP mode)
- User data size up to 64 Kbytes
- Communications services also for controlling (Stop, Start) the partner
- SFBs:
- Data can also be read and written by an S7-300 (GET/PUT)
- Different tasks can be handled via one connection
S7 Extended Communication
SIEMENS
September 28,
2018
SIMATIC S7
SIEMENS LTD EGYPT 2007
All Rights Reserved
38/1
8
SFB/SFC
SFB 8
NAME Short Description
USEND Send block for sending data to the URCV (Client) block
SFB 9 URCV Receive block for receiving data of the USEND block
BSEND
Send block for sending large data blocks to the BRCV
block (up to 64 KByte)
SFB 12
BRCV
Receive block for receiving large data blocks
(up to 64 Kbyte)
SFB 13
GET Read data from partner PLCSFB 14
Comm. Type
two-sided
two-sided
two-sided
two-sided
one-sided
PUT Write data to partner PLCSFB 15 one-sided
PRINT Send data to remote printerSFB 16 one-sided
START Perform complete restart at the partnerSFB 19 one-sided
STOP Put partner in the Stop stateSFB 20 one-sided
RESUME Perform restart at the partnerSFB 21 one-sided
STATUS
Status scan of the partner
(RUN, STOP, start-up, hold)
SFB 22 one-sided
USTATUS Receive the partner‘s status messagesSFB 23 one-sided
CONTROL Scan the internal status of an S7 connection + SFBSFC 62 ---
S7 Extended Communication
SIEMENS

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Industrial communication

  • 2. Transmission modes  Simplex  Half duplex  Full Duplex
  • 3. Network elements  Master : has unique address.  Slave : has unique address.  Protocol  Network subnet  Data exchange area  Data exchange tools.
  • 4. Basic Requirements  Software (simatic manager)  Pronet(included in simatic manager)  GSD files (general station description)  http://www.gsd-db.com
  • 6. Serial communication  RS232  RS 485  CAN  ETHERNET  USB  HDMI
  • 12. ModBus  Physical layer can be  RS 232 – RS485 –RS422 (communication mode: ASCII -RTU).  ETHERNET (communication mode: TCP)  RTU VS ASCII  RTU send more Data on same baud rate.  ASCII is more used on industry.  Finally select mode depend on device mode supported.
  • 16. Profibus communication between S7300 and S7200 using EM277  Component  Cpu 314c-2DP  EM277  CPU 226
  • 19. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 19/1 8 SIEMENS Objectives - Know Communication Methods. - Configure GD Communication Files.
  • 20. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 20/1 8 CP5511 Transmission rate 9.6 kbit/s to 12 Mbit/s Interfaces 9-pin Sub D socket for connection to PROFIBUS Module format : PCMCIA slot Type II CP5611 Transmission rate 9.6 kbit/s to 12 Mbit/s Interface 9-pin Sub-D socket for connection to PROFIBUS Module format : PCI card Space requirements : 1 x PCI slot CP Used For MPI Comm. With PC & Laptop SIEMENS
  • 21. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 21/1 8 Communication Services Data Volume Interfaces S7-Communication Functions Up to 22 Byte (S7-300) Up to 54 Byte (S7-400) Global Data S7 Basis Communication S7 Extended Communication Up to 76Byte Up to 16 Byte (S7-300) up to 64 Byte (S7-400) MPI MPI MPI CPs for PROFIBUS and Ethernet MPI Communication Method SIEMENS
  • 22. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 22/1 8 - Data communication: 187.5 kbit/s to 12 Mbit/s - Up to 32 bus nodes and up to 32 active connections per CPU - Communication services: . PG/OP communication functions . Global data communication for small data volumes, without a programming overhead . S7 Basic communication for small data volumes up to 76 bytes MPI Communication Add.= 1 Add.= 0 Add.= 3 Add.= 2 Add.= 4 Add.= 5 SIEMENS
  • 23. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 23/1 8 Inserting Another Station - S7 300 SIEMENS
  • 24. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 24/1 8 Edit Hardware For The other Station - S7 300 Two station SIEMENS
  • 25. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 25/1 8 Edit Hardware For The other Station - S7 300 The address of the CPU for the other station must have a different address SIEMENS
  • 26. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 26/1 8 Configure The Network Click on this icon to edit the network configuration SIEMENS
  • 27. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 27/1 8 Connectiong CPU To The MPI Network SIEMENS
  • 28. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 28/1 8 Compiling & Checking The Connection SIEMENS
  • 29. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 29/1 8 PC address: 0 CPU-MPI address: 2 PC address: 1 CPU-MPI address: 3 Connect CPU & PCs Using MPI Cables SIEMENS
  • 30. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 30/1 8 Start Global Data File SIEMENS
  • 31. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 31/1 8 Define The CPUs SIEMENS
  • 32. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 32/1 8 Assigne Sender & Receiver SIEMENS
  • 33. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 33/1 8 Compile & Check SIEMENS
  • 34. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 34/1 8 Download GD File To CPU SIEMENS
  • 35. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 35/1 8 SFC SFC 65 NAME Short Description X_SEND Send block for sending data to the X_RCV (Client) block SFC 66 X_RCV Receive block for receiving the data of the X_SEND block X_GET Read data from the partner PLCSFC 67 X_PUT Write data to the partner PLCSFC 68 X_ABORT Abort existing connectionSFC 69 I_GET Read data from the partner CPUSFC 72 I_PUT Write data to the partner CPUSFC 73 I_ABORT Abort connection to the partner CPUSFC 74 S7 Basic Communication SIEMENS
  • 36. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 36/1 8 SFC65 (X_SEND) REQ RET_VAL BUSYCONT DEST_ID SD REQ_ID CALL SFC 65 REQ:= M4.0 //Trigger CONT:= FALSE //Disc. connection DEST_ID:= W#16#4 //MPI_addr. REQ_ID:= DW#16#1 //Identifier SD:= P#M20.0 BYTE 10 //Variable RET_VAL:= MW40 //Error code BUSY:= M 4.1 //SFC active SFC66 (X_RSV) EN_DT RET_VAL REQ_ID NDA RD CALL SFC 66 EN_DT:= TRUE //Trigger data trans. RET_VAL:= MW 50 //Error code REQ_ID:= MD52 //Job ID NDA:= M40.0 //Data exist RD:= P#M20.0 BYTE 10 //Variable S7 Basic Communication Using SFC 65 - 66 SIEMENS
  • 37. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 37/1 8 - Data exchange using MPI, Profibus or Industrial Ethernet - Configuring the connections via connection table -The connections are configured during warm restart and exist permanently (even in STOP mode) - User data size up to 64 Kbytes - Communications services also for controlling (Stop, Start) the partner - SFBs: - Data can also be read and written by an S7-300 (GET/PUT) - Different tasks can be handled via one connection S7 Extended Communication SIEMENS
  • 38. September 28, 2018 SIMATIC S7 SIEMENS LTD EGYPT 2007 All Rights Reserved 38/1 8 SFB/SFC SFB 8 NAME Short Description USEND Send block for sending data to the URCV (Client) block SFB 9 URCV Receive block for receiving data of the USEND block BSEND Send block for sending large data blocks to the BRCV block (up to 64 KByte) SFB 12 BRCV Receive block for receiving large data blocks (up to 64 Kbyte) SFB 13 GET Read data from partner PLCSFB 14 Comm. Type two-sided two-sided two-sided two-sided one-sided PUT Write data to partner PLCSFB 15 one-sided PRINT Send data to remote printerSFB 16 one-sided START Perform complete restart at the partnerSFB 19 one-sided STOP Put partner in the Stop stateSFB 20 one-sided RESUME Perform restart at the partnerSFB 21 one-sided STATUS Status scan of the partner (RUN, STOP, start-up, hold) SFB 22 one-sided USTATUS Receive the partner‘s status messagesSFB 23 one-sided CONTROL Scan the internal status of an S7 connection + SFBSFC 62 --- S7 Extended Communication SIEMENS

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