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04/23/2020 TR - ELA - BA - DGB - 0015 - 13 Page 87 of 92
6.6 Data status
With cyclic Real-Time communication the transferred data contains a status message.
Each subslot has its own status information: IOPS/IOCS.
This status information indicates whether the data are valid = GOOD (1) or invalid = BAD (0).
During parameterization, execution of the preset adjustment function, as well as in the
boot-up phase the output data can change to BAD for a short time. With a change back to
the status GOOD a “Return-Of-Submodule-Alarm” is transferred.
If the magnet is outside of the measuring range (measurement error), the status is set
to BAD, until the magnet is within the measuring range again or the magnet minimum
distance was corrected. If the configured number of magnets does not agree with the
operated number of magnets (configuration error), the data status is set to BAD,
until a valid configuration is present.
If a diagnostic alarm was executed the status is also set to BAD, but can be reset only
with a re-start in case of an internal communication error.
Example: Input data IO-Device --> IO-Controller
Example: Output data IO-Controller --> IO-Device
6.7 Configuration example, SIMATIC
Manager
For the configuration example the CPU CPU315-2 PN/DP is used:
Figure 10: Configuration example with “CPU315-2 PN/DP“
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