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Profibus user manual – BEI Sensors PHU9 Absolute Hollow Shaft Encoder User Manual

Page 26

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PROFIBUS USER MANUAL

26

Preliminary

BEI IDEACOD SAS

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F 67013 Strasbourg Cedex

Tél

: +33 (0)3 88 20 80 80

Fax : +33 (0)3 88 20 87 87
Mail :

[email protected]

Web : www.bei-ideacod.com

6 Diagnostic messages


6.1 Overview

On request of the master the encoder
transmits

diagnostic

data

("DDLM_Slave_Diag"). The diagnostic data
length is 57 bytes (Exception: shorter
diagnostics, cp. 5.1.5). The format of the

diagnostic data is according to the Profibus
Standard (octets 1-6) respectively according
to the Profile for Encoders (starting from octet
7).

Diagnostic function

Data type

Diagnostics

-

octet

number

Class

Station status 1 (ref. to: Profibus
Standard)

Octet

1

1

Station status 2 (ref. to: Profibus
Standard)

Octet

2

1

Station status 3 (ref. to: Profibus
Standard)

Octet

3

1

Diagnostic master address

Octet

4

1

PNO identification number

Octet

5, 6

1

Extended diagnostic header

Octet String 7

1

Alarm messages

Octet String 8

1

Operating status

Octet String 9

1

Encoder type

Octet String 10

1

Resolution per revolution (Hardware)

Unsigned 32 11 - 14

1

Number of revolutions (Hardware)

Unsigned 16 15, 16

1

Additional alarm messages

Octet String 17

2

Supported alarm messages

Octet String 18, 19

2

Warnings

Octet String 20, 21

2

Supported warnings

Octet String 22, 23

2

Profile version

Octet String 24, 25

2

Software version

Octet String 26, 27

2

Operating time

Unsigned 32 28 - 31

2

Zero offset

Unsigned 32 32 - 35

2

Manufacturer-specific: offset value

Unsigned 32 36 - 39

2

Programmed resolution per revolution

Unsigned 32 40 - 43

2

Programmed total resolution

Unsigned 32 44 - 47

2

Serial number

ASCII String 48 - 57

2