DEUTSCHMANN AUTOMATION UNIGATE CM - PROFIBUS, Инструкция по эксплуатации

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Mode of operation of the system Deutschmann Automation GmbH & Co. KG
18 UNIGATE
®
Feldbus-Gateway UNIGATE
®
CM - PROFIBUS V. 1.6 23.6.17
7 Mode of operation of the system
7.1 General explanation
Communication can be split into seven layers, Layer 1 to Layer 7, in accordance with the ISO/
OSI model.
The Deutschmann Automation Gateways convert Layers 1 and 2 of the customized bus system
(RS485 / RS232 / RS422) to the corresponding Fieldbus system. Layers 3 to 6 are blank, and
Layer 7 is converted in accordance with chapter 7.3.
7.2 Interfaces
The Gateway features a CANopen and fieldbus interface as well as the serial interfaces RS232-,
RS422- and RS485.
7.3 Data exchange
All data is transferred by the Gateway in dependence of the downloaded Script.
7.4 Possible data lengths
The table below shows the maximum transferable data
PROFIBUS
Input data max. 244 Bytes variable: maximum value in this case
Output data max. 244 Bytes variable: maximum value in this case
Parameters 8 Bytes no user parameters *
Configuration data max. 16 Bytes dependant on configuration *
Diagnosis max. 8 Bytes 1 user diagnostic byte = error code *
:
*) Contrary to this default setting these parameters can be altered through special Script com-
mands.
The commands can be found in the Protocol under “Bus specific“-“PROFIBUS“:
Set Profibus Config Data
Set Profibus Parameter InBuf
Set Profibus Diagnose
Further information can be found in the Protocol Developer’s online help.
CM
With Universal script CM the data length on the CANopen-side is dependant on the protocol
CANopen Mapping
Layer 2 11Bit
Universal (L2 11Bit)
Universal (L2 11Bit) with COB-
ID used
L2 11Bit (Tgl+Fblen Universal (L2 11/29Bit)
Universal (L2 11/29Bit) with COB-ID
used
In- and Output data maximum 10 Byte, of which a
maximum of 8 Byte is payload
maximum 12 Byte, of which a maximum
of 8 Byte is payload
7.5 Startup phase
The Gateway is parameterized and configured by the Master during the startup phase. Only after
a correct termination of the startup phase the data exchage with external devices will take place.