Setup Guide - Profibus communication
AC141x with Step 7 V5.5
English
Setup Guide - Profibus communication - AC141x with Step 7 V5.5
Contents:
1.
2.
3.
4.
5.
6.
Connect the Profibus Unit
Create a Project and set the PG/PC Interface
Configure the Hardware
Configure the Profibus Gateway
Transfer the Project
Monitor the Inputs and Outputs
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
1.
Connect the Profibus Unit
Laptop / PC
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Siemens PLC with
Profibus Interface
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ifm AS-i / PB Gateway
AC141x
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
2. Create a Project and set the PG/PC Interface
 Create project
 Start Simatic Manager with
icon from desktop
 Use an appropriate name for
the project
 Confirm with OK
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
2. Create a Project and set the PG/PC Interface
 Set the PG/PC interface
 Set the PG/PC-Interface using
„Options -> Set PG/PC Interface“.
 Choose the PC from the list of
Ethernet interfaces.
 Confirm with OK
 Confirm with OK
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
3. Configure the Hardware
 Add the Simatic Station
 Add the PLC to the project : „Insert -> Station -> Simatic 300 Station or
Simatic 400 Station“
 Open the Hardware configuration
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
3. Configure the Hardware
 Add Rail
 Add the Rack Rail by using „drag and drop“ on the respective icon from the
catalogue.
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
3. Configure the Hardware
 Add CPU
 Add the CPU by using „drag and drop“ to the respective slot from the catalogue.
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
3. Configure the Hardware
 Set the Ethernet interface
 Enter the IP address for the
Ethernet interface of the PLC
 Click „New…“ to add the ethernet
connection
 Enter an appropriate name for the
Ethernet connection
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
3. Configure the Hardware
 Set Ethernet interface
 The Ethernet interface „Ethernet1“
is now added. Close the
configuration session with OK.
 This interface will be used to upload
and download the PLC
configuration and program
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Install GSD File
 The „Generic Station
Description “ File (GSD
File) is required in order to
integrate the Profibus
gateway into the hardware
configuration. When using
the Profibus gateway with
the Step 7 system for the
first time, the GSD File is to
be installed via „Options ->
Install GSD File….“
 Choose the GSD File with
„Browse…“
 Start the installation
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Add the Profibus path – right click on the MPI/DP interface to create the
Profibus connection
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Add the Profibus path – right click on the MPI/DP interface to create the
Profibus connection
1
2
3
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Add the Profibus gateway
 Choose the Profibus gateway from the catalogue using the following steps: „Profibus
DP -> Additional Field Devices -> Gateway -> ifm electronic gmbh -> AS-Interface ->
AC1411/12-PB V2.0 and add it to Profibus network.
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Description of the Slots
 Slots 1 - 4:
 Slots 5 - 6:
 Slots 7 - 8:
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digital IO signals M1/M2 (address 0-63)
analogue inputs M1/M2 (address 256 – 263)
analogue outputs M1/M2 (address 256 – 263)
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Description of Slots
 Slots 1 - 4: digital IO signals
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
4. Configure the Profibus Gateway
 Description of Slots
 Slots 5 - 6: analogue inputs/outputs,
 Data mapping and corresponding parameter setting:
 analogue channels per input / output slave" = 1
 analogue channels per input / output slave" = 2
 „analogue channels per input / output slave" = 4 is not suitable for this
representations since it can be defined by the user.
. Complete table for data mapping is given in the Device Manual
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
5. Transfer the Project
 Save the configuration using Ctrl + S or „Station -> Save and Compile“
 Load the configuration to PLC using Ctrl + L or „PLC -> Download“
 If the configuration is correct, the bus error LEDs (BF 1 and BF 2) are out and the
system error LED (SF) of the CPU is green.
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
6. Monitor the Inputs and Outputs
 Create a Variable Table (VAT) in Step7
 Insert -> Range of Variables…




IW for Input Words or PIW for Periphery Input Words
IB für Input Bytes or PIB for Periphery Input Bytes
Ix.y for Input-Bits, for example . I64.1 for bit 1 in input byte 64
-> Read inputs via monitor variable (glasses)




QW for Output Word or PQW for Periphery Output Word
QB for Output Byte or PQB for Periphery Output Byte
Qx.y for Output Bit, for example Q64.1 for bit 1 in output byte 64
-> Outputs can be set via Variable Control
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
6. Monitor the Inputs and Outputs
 Add variable table by right clicking left window, Insert New Object –> Variable table
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
6. Monitor the Inputs and Outputs
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
6. Monitor the Inputs and Outputs
 Open VAT table by clicking on VAT1
 To add variables, Go to Insert  Range of Variable
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
6. Monitor the Inputs and Outputs
 To Monitor values, Variable  Monitor
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Setup Guide - Profibus communication - AC141x with Step 7 V5.5
6. Monitor the Inputs and Outputs
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