Profibus user manual – BEI Sensors PHU9 Absolute Hollow Shaft Encoder User Manual
Page 26

PROFIBUS USER MANUAL
26
Preliminary
BEI IDEACOD SAS
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Mail :
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