Technical data

List of all BACnet Properties in Native Operation • 279
APDU_Segment_Timeout
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
6.5 APDU_Segment_Timeout
Data Type Unsigned
Objects Device
Description The APDU_Segment_Timeout property, of type Unsigned,
shall indicate the amount of time in milliseconds between
retransmission of an APDU segment. The default value for
this property shall be 2000 milliseconds. This value cannot
be zero if the device object property called Num-
ber_Of_APDU_Retries is not zero. If segmentation of any
kind is supported, then the APDU_Segment_Timeout prop-
erty must be present.
In order to achieve reliable communication, it is re-
commended that the values of the APDU_Segment_Timeout
properties of the Device objects of all intercommunicating
devices should contain the same value.
6.6 APDU_Timeout
Data Type Unsigned
Objects Device
Description The APDU_Timeout property, of type Unsigned, shall indi-
cate the amount of time in milliseconds between retransmis-
sions of an APDU requiring acknowledgment for which no
acknowledgment has been received. The default value for
this property is 3000 milliseconds for devices that permit
modification of this parameter. Otherwise, the default value
is 60,000 milliseconds. This value cannot be zero if the de-
vice object property called Number_Of_APDU_Retries is
not zero.
In order to achieve reliable communication, it is recom-
mended that the values of the APDU_Timeout properties of
the Device objects of all intercommunicating devices should
contain the same value.