PROFINET IO
vacon • 133
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
8
Figure 46. NAP S2, connected to two IOCs
In case the primary AR fails, the IOC initiates a switch for the backup SR-AR to become primary. This
switchover cannot take longer than the Redundancy Data Hold Time (RDHT), which is configured by
the IOC. During the transition, the input data is hold and the output data frozen to ensure a bumpless
transition. OPTEA does not create a fault during this time if a backup connection is available. A fault
is created after this time elapses and no Primary is available.
NOTE!
System Redundancy is available in OPTEA version V002 or later and requires the use of
GSDML file dated 21.06.2018 or later.
8.7
Alarm system
OPTEA and OPTE9 implement PROFINET IO alarm system where VACON
®
faults and alarms are
seen on bus as PROFINET IO alarms. The alarms use module specific channel diagnostic and
extended channel diagnostic data. The GSDML file contains description and help texts for the
alarms. Texts are in English and Finnish. Automation systems can use these texts to display helpful
diagnostics to end users in case of faults.
The figures below show how Siemens TIA portal displays the diagnostics.
Figure 47. Siemens TIA portal - Alarm indicator
Host
NAP
IO
IOC
PROFINET
SR-ARa
Single NAP
S2
SR-ARb
IOC
Host
11958_uk
Summary of Contents for optea
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