8
Process data transfer
8.3
Mapping indices and codes
66
Lenze · E94AYCET communication module (EtherCAT®) · Communication Manual · DMS 10.2 EN · 11/2018 · TD06
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8.3.1
Structure of the mapping codes
...
have the following structure:
Example
In the RPDO channel 1, the index 0xA640.0x03 is transmitted with a length of 4 bytes from an offset
of 20 bytes.
• Entry in the mapping code
C1x231/8
: 0x002000A00003A640
• Correspondent entry in the CoE object
0x1600/8
: 0xA6400320
8.3.2
FSoE mapping indices
The FSoE mapping indices can be used from
SW version 04.00
and show the PDO mapping for the
safety PDOs. On the EtherCAT side, they are mapped onto the CoE objects
0x1700
(Safety RxPDO)
and
0x1B00
(Safety TxPDO).
The FSoE mapping is activated by the configurator via the indices
0x1C12.02 = 0x1700
and
0x1C13.02 = 0x1B00
.
The FSoE mapping is only possible with the simultaneous use of a valid PDO mapping.
Octet offset
Name
Description
0 / 1
Index
Index of the object to be mapped
2
Subindex
Subindex of the object to be mapped
3
Reserved
4 / 5
Offset
Offset regarding the PDO start in bits
6 / 7
Length
Length of the object to be mapped in bits
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Index
Subindex
Reserved
Offset
Length
0x40
0xA6
0x03
0x00
0xA0
0x00
0x20
0x00