Siemens 2D-TZ577 Instruction Manual page 21

Profibus dp-v0 slave interface for cr800-d series; cr750-d series; cr751-d series; crnd-700 series controller
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3 Features and Specification of 2D-TZ577 Card
Parameter
Initial value
Setting range
Description
name
PBCNT
40
0 to 65535
A parameter that specifies an interval at which the 2D-TZ577
Card is checked for error.
Unit interval: msec
In normal condition, use the 2D-TZ577 Card at its factory
default (40).
User may change the setting only when communication errors
are frequently encountered under the undue influence from
noise in his installation environment. Normally, a setting in the
range of 40 to 70msec will do. Increase the setting with great
care as this may result in the inability to generate an error
indication even when one occurs in the 2D-TZ577 Card.
With a value greater than "1" being specified (rounding-up
checked), the Controller generates an error indication only
when it has detected a 2D-TZ577 Card error continuously
during a specified period of time. The Controller does not
generate an error indication unless it has had continuous error
detection.
With "0" being specified, an error indication is generated
immediately upon a 2D-TZ577 Card error being detected by the
Controller.
Robot Parameters 3- 11

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