16.4.3 Process data transfer
In the system bus network …
•
the se
tpoint process data (master to slave) are set via the system bus master inside the
technology applicaon;
•
the actual process data (slave to master) is set via the slave device.
Data mapping
All inverter i950 slave devices have a xed generic data mapping. This data mapping enables
the use of the sla
ve devices with an i950 inverter as system bus master and with other Ether-
CAT-based master control systems (PLC).
•
The pr
ocess data is set to 8 double words (32 bytes) for each direcon.
•
Output data direcon: From Master to Slave.
•
Output da
ta: 0xA200:001 ... 0xA200:008
•
Input data direcon: From Slave to Master.
•
Input data: 0xA680:001 ... 0xA680:008
•
This xed data mapping is automacally acvated as master for an i950 inverter.
•
The process data is transmied 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 / seng range / [default seng] Info
0xA200:001 Systembus output data: Systembus data output 1
•
R
ead 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
Conguring the network
E
therCAT system bus
Process data transfer
370