Baumer Absolute encoder User Manual

Baumer_EAM580_360_SAE_J1939_MA_EN_Rev0003.0000h_Index0002.docx Baumer Electric AG
06.08.2018 15/27 Frauenfeld, Switzerland
7.3 Mapping
The encoder supports a customer specific mapping for PGN65450, which can be specified, when ordering an encoder.
7.3.1 Mappable objects
The following objects are mappable:
Mapping content
Mapping entry
Description
Position encoder
0x60040020
Object 6004h Subindex 00h, data length 32 Bit
Speed encoder [steps/sec]
0x60300120
Object 6030h Subindex 01h, data length 32 Bit
Alarms
0x65030010
Object 6503h Subindex 00h, data length 16 Bit
Warnings
0x65050010
Object 6505h Subindex 00h, data length 16 Bit
Diagnostic
0x21170010
Object 2117h Subindex 00h, data length 16 Bit
Speed [rpm]
0x21180010
Object 2117h Subindex 00h, data length 16 Bit
Time Stamp
0x21200010
Object 2120h Subindex 00h, data length 16 Bit
7.3.2 Default mapping of absolute encoder
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Position[0]
Position[1]
Position[2]
Position[3]
Speed[0]
Speed[1]
Warnings
Errors
Byte 0 – 3 Encoder absolute position:
Datatype: 4 Byte, U32,
Resolution: According to scaling factors (see encoder parametrization)
Byte 4 – 6 Encoder speed value:
Datatype: 2 Byte, S16,
Resolution: [rpm]
Byte 7 – 8 (Encoder diagnostic):
See Object description in chapter 0x2117 Encoder Diagnostics
7.4 Timing
The minimal cycle time for PGN65450 is 1 ms, although the J1939 suggest to use minimal cycle times of 50 ms.
7.5 Exceptions of accurate calculation of process data
The following operations could interrupt the accurate calculation of process data such as position, speed, warnings and
alarms:
- Changing the scaling parameters

Baumer Absolute encoder Specifications

General

Brand	Baumer
Model	Absolute encoder
Category	Media Converter
Language	English