Balluff BTL7-T500 Series, Configuration Manual

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4
Configuration (continued)
4.7.6 Alarm channel control
This parameter can be used to enable or disable the
transfer of the encoder-specific alarm channel as a
channel-related diagnostic. This reduces the amount of
data transferred in isochronous mode.
This parameter is only supported in
compatibility mode V3.1!
4.7.7 Compatibility mode V3.1
Resetting this parameter establishes compatibility with
version 3.1 of the PROFIdrive profile. The details can be
seen in the following table:
Function Compatibility mode Enable
Compatible with Encoder Profile V3.1
Compatibility mode Disable
No downward compatibility
(pre-setting)
Control by PLC
(STW2_ENC)
Ignored; the control word G1_STW and
the set values are always valid.
Control requests (ZSW2_ENC) are not
supported and are set to 0.
Supported
Parameter Master Sign-Of-Life
failures
Supported Not supported. A sign-of-life counter error
is tolerated. Parameter 925 is optional for
sign-of-life monitoring control.
Parameter
Alarm channel control
Supported Not supported. The alarm channel of the
application is enabled and is controlled by
a PROFIdrive parameter.
P965 - Profile Version 31 (V3.1) 41 (V4.1)
Tab. 4-5: Compatibility mode
4.7.8 Scaling: Measuring steps per nominal
measuring length (Measuring step 0.001µm)
This parameter sets how many nanometers a measuring
unit should contain. The smallest reasonable unit and
default value is 1000 nm, that is 1 µm. Smaller resolutions
can lead to rounding effects. Thus, the unit should be
chosen sensibly.
The step interval can also be affected by the parameter
Scaling: Total measuring range . Therefore one of the two
parameters should always be set to zero.
Scaling is only active if Class 4 functionality and Scaling
function are turned on. The data format for both values is
UNSIGNED32 (0…4294967295). If both values are at 0,
then 1000 nm is calculated for the step increment and the
nominal stroke in µm for the measuring range (default).
If the value is set to Disable (presetting), only the
communication-related alarms are transmitted via the
alarm channel. If the value is Enable , the specific errors
and warnings are also transferred via the alarm channel
according to the encoder profile and profile definition.
BTL7-T500-…
Configuration Guide