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GFK-2738AE
Subject
Analog Modules do not
configure if Alarms are outside
High and Low Scale Value
Engineering Units.
IOPS of power supplies do not
update when a power supply
is switched off
PROFINET Alarms are not
supported
Some power supplies use two
backplane slots, but this is not
indicated in the change
module list interface of HWC
PNS module is supported in
certain backplane slots only.
SFP modules do not support
hot-swap
I/O modules hot inserted while
an invalid configuration is
stored require re-insertion or
power cycle to recover
Quickly changing data may
not be detected in PLC Logic
solve
Description
For analog input and output modules that support alarms, the PNS limits alarm values to
the range specified by the High and Low Engineering Unit values. If the High and Low
Scale A/D Unit values are not the full range of the analog signal, runtime values reported
in Engineering Units may exceed the High or Low Engineering range. Alarms cannot be
configured for this range outside of the Engineering Units range.
For example, consider an input channel with Range Type as Voltage/Current and
Range selection of -10V to +10V, 16-bit Integer format. If High and Low Scale
Eng Units are set to 8500 and -8500 and the High and Low Scale A/D Units are
set to 8 and -8, the alarm range will be limited to a range of -8500 to 8500.
Analog input signals of -10V and +10V correspond to Engineering Unit values of
-10625 and 10625. To support alarm values at all possible values of the analog
signal, scaling values should be chosen such that the A/D Units are specified as
the high and low limits for the analog signal. In this example, the High and Low
Engineering units would be 10625 and -10625 with High and Low A/D Units of 10
and -10.
The IOPS (status) of a power supply is marked good or bad at the start of each
PROFINET I/O connection. The IOPS is not updated when the power supply is
turned on and off.
PROFINET Alarms are not issued from the RX3i PNS in this release.
Note that the IC695PSA040 and IC695PSA140 each utilize two backplane slots
but are shown using only one slot in the Change Module List interface for the
RX3i PNS. Configuring a module for the already utilized slot will result in a Loss
of I/O Module fault.
The RX3i PROFINET Scanner module is configurable for use in Slot 1, Slot 2,
and when installed in the IC695CHS007 backplane, also Slot 6.
SFP modules do not support hot swaps. This means that if an SFP module is
hot-inserted into the RX3i PNS, no Fault Table entry will be logged, and
configuration parameters will not be applied to the SFP until the RX3i PNS is
power cycled. Additionally, the SFP will remain enabled and active with auto-
negotiation turned on until the RX3i PNS is power cycled.
If an invalid configuration for an I/O module in the PNS is stored to the CPU,
such as a default value outside the engineering units range, and the I/O module
using that configuration is hot inserted in the PNS, the hot insertion process fails.
No Addition of I/O Module fault is generated, and the module is left at its default
operation. The configuration of that module will not be retried until the module is
re-inserted or the PNS rack is power cycled, even if the configuration is corrected
in the CPU.
Quickly changing I/O or Module Data such as event flags on a High-Speed
Counter module may not be detected in the CPU logic scan. Only event data that
is latched and acknowledged or persists for the Update I/O Rate plus the CPU
Logic Scan rate is guaranteed to be detectable from logic.
Jan 2024
10
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