TR-Electronic CDV582 - PNO Encoder Profile, Not Safety Instrumented (Channel 1;2 (PNO)); Structure of the Cyclic Process Data

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11/21/2019 TR - ECE - BA - GB - 0139 - 02 Page 35 of 154
6.2 PNO Encoder Profile, not safety instrumented (Channel 1/2 (PNO))
With this configuration the measuring system supports the PNO Encoder Profile (Profile-ID
0x3D00) defined by the PROFIBUS User Organization according to Version 4.2. The measuring
system only supports Applications Classes 3 and 4 defined there:
● Application Class 3:
Measuring systems with access to basic parameters and limited parameterization of the
measuring system functionality. Isochronous mode is supported.
Area of application: simple motion control applications
● Application Class 4:
Measuring systems with access to basic parameters and additional scaling and preset function.
Isochronous mode is supported.
Area of application: extended motion control applications
The Encoder Profile is normally based on the PROFIdrive Profile specified for drives. Many
concepts and functionalities have therefore also been transferred to the Encoder Profile.
The measuring system only supports the mandatory PROFIdrive-related parameters (9xx / 600xx).
6.2.1 Structure of the cyclic process data
A series of standard signals are available for the configuration of the cyclic data exchange, according
to the PROFIdrive drive profile:
Signal no.
Meaning
Name
Length in bits
Format
6
Velocity value A
NIST_A
Integer16
Page 37
8
Velocity value B
NIST_B
Integer32
Page 37
9
Control word, Sensor 1
G1_STW
Unsigned16
Page 37
10
Status word, Sensor 1
G1_ZSW
Unsigned16
Page 38
11
Position value 1, Sensor 1
G1_XIST1
Unsigned32
Page 39
12
Position value 2, Sensor 1
G1_XIST2
Unsigned32
Page 39
39
Position value 3, Sensor 1
G1_XIST3
Unsigned64
Page 39
80
Control word 2, Encoder
STW2_ENC
Unsigned16
Page 40
81
Status word 2, Encoder
ZSW2_ENC
Unsigned16
Page 40