Encoder data, Pdo (process data object), Encoder data 5 – Baumer BMxx, GBxxx-GXxxx - EtherCAT / PoE from version&nbsp,5.0 User Manual

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30.09.14

Encoder data

5.

5.1 PDO (Process Data Object)

Depending on the configuration, the encoder will provide the following process data (input data):

XML file

PDO Mapping

Product code

Applied in version

BAUMER Group absolute
EtherCAT encoders.xml

10Byte PDO: (default)
4 Byte Position value
2 Byte Warnings
4 Byte System Time/Speed value

or

4Byte PDO: (configurable)
4 Byte Position value

2Byte PDO: (configurable)
2 Byte Position value

20






25


30

V5.00 and up




10Byte PDO (Default)

Value

Data type

Explanation

Position value

UDINT

Current absolute encoder position value. For range-related information
refer to „Encoder operating parameters“

Warnings

UINT

Warnings
Bit 2: 1  Lithium battery power low
Bit 4: 1  Excess shaft turns during power-off
Bit 5: 1  Incorrect encoder configuration

System Time

UDINT

Present system time, resolution in ns, alternative Speed Value DINT




4Byte PDO

Value

Data type

Explanation

Position value

UDINT

Current absolute encoder position value. For range-related information
refer to „Encoder operating parameters“




2Byte PDO

Value

Data type

Explanation

Position value

UINT

Current absolute encoder position value. For range-related information
refer to „Encoder operating parameters“



The configuration 4Byte PDO / 2Byte PDO allows for shorter cycle times.

Cycle times are configuration-related, see chapter cycle times

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