Siemens Multi Panel MP270 SIMATIC HMI Equipment Manual page 112

System Messages
Number
260002 A password has been entered whose assigned level
does not permit execution of the function.
The password level currently set is displayed for
information purposes.
270000 A tag is not displayed in the message because it
attempts to access an invalid address in the PLC.
270001 There is a unit-dependent limit as to how many
messages may be queued simultaneously in order to
be displayed (see GHB). This limit has been
exceeded.
The display no longer contains all the messages.
However, all the messages are recorded in the
message buffer.
280000 Connection is re-established because the cause of
the interruption has been eliminated.
280001 No more data is read or written.
This can have various causes:
The cable is defective.
The PLC does not respond, is defective, etc.
Connection made to the wrong interface.
The system is overloaded.
280002 A connection is used which requires a function
module in the PLC.
The function block has replied. Communication can
now proceed.
280003 A connection is used which requires a function
module in the PLC.
The function block does not replied.
C-12
Effect/Cause Remedy
Modify the password level in the
password input field or enter a
password with a sufficiently high
level.
Check whether the data area for
the tag exists in the PLC, the
configured address is correct or
the value range for the tag is
correct.
–
–
Check that the cable is plugged in,
the PLC is operational, the correct
interface is used.
Reboot the system if the system
message is displayed
continuously.
–
Check that the cable is plugged in,
the PLC is operational, the correct
interface is used.
Reboot the system if the system
message is displayed
continuously.
The remedy is dependent on the
error code:
1: The function block must set
the COM bit in the response
container.
2: The function block may not
set ERROR bit in the
response container
3: The function block must
respond within the specified
time (timeout)
4: Establish an online
connection to the PLC
MP270 Equipment Manual
Release 01/99