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TR-Electronic GmbH 2009, All Rights Reserved
04/23/2020
TR - ELA - BA - DGB - 0015 - 13
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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
VLAN Ethertype Frame-ID
Data
IOPS
...
IOPS
...
Cycle
Data Status
Transfer Status
CRC
4
0x8892
2
1..
1
1
2
1
1
4
Example: Output data IO-Controller --> IO-Device
VLAN Ethertype Frame-ID IOCS
IOC
S
... Data
IOPS
...
Data ...IOPS. Cycle Data Status Transfer Status CRC
4
0x8892
2
1..
1
1 ...
1..
2
1
1
4
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“
