Operating instructions

Appendix
A.2 System alarms
MP 377, MP 377 PRO (WinCC flexible)
Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
313
Number Effect/causes Remedy
280003 The connection used requires a function block in the
PLC.
The function block has not responded.
Check whether
• The cable is plugged in
• The PLC is OK
• The correct port is used
Restart the system if the system alarm persists.
Remedy depends on the error code:
1: The function block must set the COM bit in the
response container.
2: The function block must not set the ERROR bit in
the response container.
3: The function block must respond within the
specified time (timeout).
4: Go online to the PLC.
280004 The connection to the PLC is interrupted. There is no
data exchange at present.
Check the connection parameters in WinCC flexible.
Ensure that the cable is plugged in, the PLC is
operational, the correct port is being used.
Restart the system if the system alarm persists.
290000 - Recipe system alarms
Number Effect/causes Remedy
290000 The recipe tag could not be read or written. It is
assigned the start value.
The alarm can be entered in the alarm buffer for up to
four more failed tags if necessary. After that, alarm
290003 is output.
Check in the configuration that the address has been
set up in the PLC.
290001 An attempt has been made to assign a value to a
recipe tag which is outside the value range permitted
for this type.
The alarm can be entered in the alarm buffer for up to
four more failed tags if necessary. After that, alarm
290004 is output.
Observe the value range for the tag type.
290002 It is not possible to convert a value from a source
format to a target format.
The alarm can be entered in the alarm buffer for up to
four more failed recipe tags if necessary. After that,
alarm 290005 is output.
Check the value range or type of the tag.
290003 This alarm is output when alarm number 290000 is
triggered more than five times.
In this case, no further separate alarms are
generated.
Check in the configuration that the tag addresses
have been set up in the PLC.
290004 This alarm is output when alarm number 290001 is
triggered more than five times.
In this case, no further separate alarms are
generated.
Observe the value range for the tag type.
290005 This alarm is output when alarm number 290002 is
triggered more than five times.
In this case, no further separate alarms are
generated.
Check the value range or type of the tag.
290006 The threshold values configured for the tag have been
violated by values entered.
Observe the configured or current threshold values
of the tag.