GE RX3i PROFINET User Manual page 53

Chapter 4. Configuration
RX3i PROFINET Scanner Configuration Validation
4.2.5.1
Certain elements of configuration data are validated by the RX3i PROFINET Scanner upon receipt. The
following table indicates the configuration validations performed by the PNS on behalf of the indicated I/O
modules. If the scanner detects an invalid configuration for a given module, the module transitions to
module default operation. At the PLC CPU, this will result in the corresponding point faults being
energized.
If any module listed below receives an invalid configuration, it rejects the configuration, energizes point
faults and blinks its OK LED. The module does not transition to an operational state, as indicated by the
OK LED being On-Solid, until a valid configuration has been stored.
Catalog # Rules
IC695MDL664
1. Pulse test diagnostic reporting must be disabled when pulse testing is disabled.
2. Open wire and short circuit diagnostic reporting must be disabled when the channel is
configured for dual-state input type.
3. Short circuit diagnostic reporting must be disabled when the channel is configured for tri-state
input type.
IC695MDL765 1. Pulse test diagnostic reporting must be disabled when pulse testing is disabled.
2. Auto Pulse Normal State and Auto Pulse Default State must not be equal to each other if pulse
testing is enabled.
IC695ALG508 1. – 5. Same as C695ALG112
IC695ALG600 6. The Lead Resistance Compensation must be set to disabled for RTD 2-wire operation.
IC695ALG112 1. The High Scale Value Engineering Units cannot be equal to the Low Scale Value Engineering
Units.
IC695ALG616
2. The High Scale Value A/D Units must be greater than the Low Scale Value A/D Units.
IC695ALG626
3. The Alarm Limits must be in order, with the High High Alarm greater than or equal to the High
Alarm, which is greater than the Low Alarm, which is greater than or equal to the Low Low
Alarm.
4. The Alarm Limits must be within the configured Engineering Units plus User Offset range, for
example if the High and Low Engineering Unit Scale values are 10,000 and -10,000 and User
Offset is 1000, the alarm limit range is +11,000 to -9,000
5. The Alarm Deadbands must be set such that the Alarm can be cleared. For example, if the
Engineering Units Scale Range is -5 to 5 and the High Alarm is 4, the High Deadband must be
less than 9 or else it is not possible to reach a value that is low enough to clear the High Alarm.
Note that the User Offset modifies the range of Alarms and Alarm Deadbands. The User Offset
is added to the High and Low Engineering Unit Scale Values to set the alarm range limits.
46 PACSystems* RX3i PROFINET IO-Scanner User Manual GFK-2737F