User Manual

Siemens Building Technologies VISONIK DCS Functions and System Messages VVS18 CM2U8567E / 04.1999
Landis & Staefa Division System Messages --- DCS Messages 3-85
[Error Text] R1=xxx
STAP TYP 00:00:00 $Tx
[Error Text] R1=xxx
->MSGDEV (M.TTER)
(Error Text: a,b,c,d,e and f)
These messages are generated by the COM driver. The error text is taken from the
V0900 array.
a) "Receiver Buffer Overflowed"
–
An escape sequence could no longer be received because the receive buffer
was full.
---> The receive buffer contents were deleted. With "TYX+=Diag" the entire
receive buffer is first printed out.
b) "Illegal Escape Sequence"
–
Can happen for V.24 interfaces and too high a baud rate.
c) "Interrupt Missed (ODT active?)"
–
Should only occur if the Online Debugger ODT is active (Online Debugging
Tool).
d) "Rx Cascade (Line too long?)"
–
Every time 16000 characters are received (with a full receive buffer), one buffer
is printed out.
–
Possibly check with "low level trace" line.
e) "Defective Characters Received:"
–
appears only with "TYX+=Diag"
–
characters+ interface error recognition
40000: overrun error
20000: framing error
10000: parity error
This message almost always means an incorrect baud rate or too long a line.
f) "Unknown Identification"
See the "Unknown Identification" error message.
a) Check the data lines. If messages do not disappear, set TYX+=Diag and send
printouts to Landis & Staefa FS&PM.
b) Check baud rate
c) Use PAT,,ODT,R to switch off ODT
d) Check line length
e) Check baud rate and line length
f) See the "Unknown identification" error message.
Explanation
Action