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SI-EtherCAT User Guide
Issue Number: 2
6.3.3
TxPDO mappings
Objects with the indices from 0x1A00 to 0x1BFF specify transmit PDO mappings. The following
mappings from CiA402 are included as standard.
Table 6-13 TxPDO mappings
The PDO mapping objects are defined below. Each mapping object has the maximum number of
sub-indices (each representing an object mapped to a PDO) defined in the XML configuration file.
Table 6-14 TxPDO mapping 1
PDO number
Mapping object index
Mapping object name
1
0x6041
statusword
2
0x6041
0x6061
statusword
modes_of_operation_display
3
0x6041
0x6064
statusword
position_actual_value
5
0x6041
0x6077
statusword
torque_actual_value
6
0x6041
0x6044
statusword
vl_velocity_actual_value
0x1A00
Transmit PDO mapping 1
Sub-index 0: Number of mapped objects
Access: RW
Range: 0 to 12
Size: 1 byte
Unit: N/A
Default: 1
Type:
USINT
Description:
The number of mapped objects in the PDO
Sub-index 1: 1st mapped object
Access: RW
Range: 0 to 0xFFFFFFFF Size: 4 bytes
Unit: N/A
Default:
0x60410010 - the CiA402 status word
(0x6041)
Type: UDINT
Description:
A mapping to an object with the following format:
Bits 0 to 7: Length of the mapped object in bits, e.g. a 32-bit parameter would have a length of
32 or 0x20.
Bits 8 to 15: Sub-index of the mapped object.
Bits 16 to 31: Index of the mapped object.
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