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VIPA System SLIO
5.6 Deployment - Modbus
5.6.1 Modbus - Overview
Requirements for opera-
tion
Parameterization
PLC application
5.6.1.1
Communication options
Master n Slave short
HB300 | CP | 040-1CA00 | en | 18-28
The number of input and output data, dependent on the IO-Size, is parameterizable via
GSD file at the 040-1CA00. For the deployment with Modbus a hardware configuration
must always be executed.
The following components are required for the deployment of the System SLIO Modbus
modules:
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Master System consisting of System SLIO with CP 040
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Slave System consisting of System SLIO with CP 040
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Siemens SIMATIC manager respectively WinPLC7 from VIPA
n
GSD file
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VIPA handling blocks Fx000011_Vxxx.zip
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Serial connection between both CP
The CP 040 always requires a hardware configuration. For this the inclusion of the VIPA
GSD file into the hardware catalog is necessary. The parameterization has the following
approach:
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Start the Siemens SIMATIC manager respectively WinPLC7 from VIPA.
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Install the selected GSD-file in the hardware catalog.
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Configure a SLIO system.
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Insert a CP 040 labeled with "Modbus".
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Parameterize the CP 040 to your specifications.
Transfer your project to the PLC.
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Except of the "Modbus Slave short", the communication always requires a PLC applica-
tion. For this the communication happens via handling blocks that you may include into
your configuration tool by means of the VIPA library Fx000011_Vxxx.zip. The library is
available at the service area of www.vipa.com.
The following text describes the communication options between Modbus master and
Modbus slave with the following combination options:
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CP 040 Modbus Master n CP 040 Modbus Slave short
CP 040 Modbus Master n CP 040 Modbus Slave long
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Modbus Master
The communication in master mode happens via data blocks deploying the CP 040 han-
dling blocks FB 60 - SEND and FB 61 - RECEIVE (or FB 65 SEND_RECV). Here you can
transfer up to 250byte user data.
Modbus Slave short
The Modbus Slave short mode limits the volume of user data for in- and output to the IO-
Size. For this you only need a hardware configuration at the slave section.
Serial communication protocols
Deployment - Modbus > Modbus - Overview
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