16.4.3
Process data transfer
In the system bus network …
•
the setpoint process data (master to slave) are set via the system bus master inside the
technology application;
•
the actual process data (slave to master) is set via the slave device.
Data mapping
All inverter i950 slave devices have a fixed generic data mapping. This data mapping enables
the use of the slave devices with an i950 inverter as system bus master and with other Ether-
CAT-based master control systems (PLC).
•
The process data is set to 8 double words (32 bytes) for each direction.
•
Output data direction: From Master to Slave.
•
Output data:
•
Input data direction: From Slave to Master.
•
Input data:
...
•
This fixed data mapping is automatically activated as master for an i950 inverter.
•
The process data is transmitted cyclically in a 1 ms cycle between the master and the
slaves.
•
The process data transfer is synchronised by the "Distributed Clocks" EtherCAT mechanism.
•
A i950 master device provides the DC master via the internal slave.
•
The data in the slaves is accepted synchronously with the PLC program in the master.
•
All slaves are synchronised with a reference clock, the so-called "DC master".
Parameter
Address
Name / setting range / [default setting]
Info
0xA200:001
Systembus output data: Systembus data output 1
•
Read only
Generic system bus output data from the PLC to the inverter.
0xA200:002
Systembus output data: Systembus data output 2
•
Read only
0xA200:003
Systembus output data: Systembus data output 3
•
Read only
0xA200:004
Systembus output data: Systembus data output 4
•
Read only
0xA200:005
Systembus output data: Systembus data output 5
•
Read only
0xA200:006
Systembus output data: Systembus data output 6
•
Read only
0xA200:007
Systembus output data: Systembus data output 7
•
Read only
0xA200:008
Systembus output data: Systembus data output 8
•
Read only
0xA680:001
Systembus input data: Systembus data input 1
0 ... [0] ... 4294967295
Generic system bus input data from the inverter to the PLC.
0xA680:002
Systembus input data: Systembus data input 2
0 ... [0] ... 4294967295
0xA680:003
Systembus input data: Systembus data input 3
0 ... [0] ... 4294967295
0xA680:004
Systembus input data: Systembus data input 4
0 ... [0] ... 4294967295
0xA680:005
Systembus input data: Systembus data input 5
0 ... [0] ... 4294967295
0xA680:006
Systembus input data: Systembus data input 6
0 ... [0] ... 4294967295
0xA680:007
Systembus input data: Systembus data input 7
0 ... [0] ... 4294967295
0xA680:008
Systembus input data: Systembus data input 8
0 ... [0] ... 4294967295
Configuring the network
EtherCAT system bus
Process data transfer
370
Summary of Contents for i950 Series
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