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ATTRIBUTES EXCEL 50/100/500/600/800
EN2B-0092GE51 R0512 28
In Fig. 15, the attribute "Operating Mode" is set to "Manual", i.e. the value entered
manually is processed in the application program.
NOTE:
“Value” and “Manual Value” are online attributes, relevant only during controller
operation via MMI or XL-Online. Furthermore, “Manual Value” is an internal online
attribute only, not visible to the operator! The operator will see only the online
attribute “value”, which can be edited only if the attribute "Operating Mode" is set to
"Manual". See also section "Operating Mode" on page 29.
Network Variable (V2.04.xx or higher)
Datapoints which are mapped to network variables on the LONWORKS network have
an attribute named "Network Variable" containing the network variable index (0-
4095) and the network variable name which allows this information to be displayed
on an MMI.
Normally Open/Normally Closed (V2.04.xx or higher)
The attribute "Normally Open/Normally Closed" defines the relationship between
the input/output signal of a digital datapoint and its logical status. This attribute is
also applicable when the digital point is the basic point of a flexible datapoint.
NOTE: The attribute "Active State" is fixed at 1 and is no longer relevant for
applications designed for this controller firmware version. Applications
designed for an older controller version will still work with this firmware
though, and in that case the attribute "Active State" is still active.
Table 11 and Table 12 show the relationship between the I/O signals, the attributes,
and the logical status for digital inputs and digital outputs, respectively.
Table 11. The attribute " Normally Open/Normally Closed " – Digital Inputs
input signal NO/NC attribute logical status text displayed
Low (<2.5 V) N.O. 0 passive
High (>5 V) N.O. 1 active
Low (<2.5 V) N.C. 1 active
High (>5 V) N.C. 0 passive
Table 12. The attribute " Normally Open/Normally Closed " – Digital Outputs
output signal
NO/NC attribute
logical status
text displayed
Low (<2.5 V) N.O. 0 passive
High (>5 V) N.O. 1 active
Low (<2.5 V) N.C. 1 active
High (>5 V) N.C. 0 passive
In the open LON mode, the "Normally Open/Normally Closed" functionality is
supported from CARE 5.0 and controller firmware 2.06.05 onwards.
CAUTION
Regarding “Normally Open/Normally Closed,” the behavior of controllers
with OS < 2.06.05 engineered using CARE 4 differs significantly from
controllers with OS 2.06.05 and higher engineered using CARE 7 and
higher. See also section “Controller OS 2.06 usage and functionality in
CARE 4 and CARE – XL500 7.01.02” in Excel CARE – User Guide (EN2B-
0182GE51).