HEIDENHAIN PROFIBUS-DP (DPV2) - Manual (Page 70)

Functionality in the PROFIBUS DPV2 device
70
8.6 Compatibility mode
This parameter defines if the encoder should run in a mode
compatible to Version 3.1 of the Encoder Profile. See below for an
overview of functions affected when the compatibility mode is
enabled.
Attribute Meaning Value
Enable Compatibility with encoder profile v3.1 0
Disable No backward compatibility (default) 1
Table 36 Compatibility mode attributes
Function Compatibility mode enabled
(=0) Compatibility mode disabled
(=1)
Control by PLC
(STW2_ENC)
Ignored, the control word
(G1_STW) and setpoint values
are always valid. Control
requested (ZSW2_ENC) is not
supported and is set to 0.
Supported
User parameter
Maximum master
sign-of-life failures
Supported Not supported, one sign-of-life
failure tolerated. PROFIdrive
P925 is optional to control the
life sign monitoring.
User parameter
Alarm channel
control
Supported Not supported, the application
alarm channel is active and
controlled by a PROFIdrive
parameter
P965 Profile version 31 (v3.1) 41 (v4.1)
Table 37 Compatibility mode definition