Communications configuring
3-246 System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
3.21.3.3 Structure of an overflow message
If the message sequence buffer overflows, then the MSI/MSPRE
generates an overflow message:
• The overflow message is the warning type (’W’).
• The prefix includes the value at input RP of function block MSI which
generates the message.
• The suffix includes the number of messages which have been lost.
• There is no measured value. This is indicated in the message type
description.
• The time, at which the message evaluation block generated the
overflow message, is entered as message instant.
• The ”sequence buffer overflow” text is output as message text if input
STM of the function block MSI is set.
3.21.3.4 Structure of a communications error message
The central block evaluates the communication errors occurring in the
system and generates the following communication error messages:
• A communications error message is message type C error (’C’).
• The prefix includes the value at input RP of the central block which
generated the message.
• The suffix includes the error number of the C-error message (this is
always positive).
• If a measured value is not available, then this is indicated in the
message type description.
• The text, configured at input CMT at the central block is output as
message text, if input STM of function block MSI is set.
• If the communications error field has overflowed, after all of the C-
error messages have been output, a message is generated which
includes, as suffix, the negative number of the messages which have
been lost. After this message, MSI does not output any additional C-
error messages. The instant at which the central block identified the
communications error field overflow, is entered as message instant.
Overflow message
Communications
error message
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