Siemens Maxum II Manual page 50

General Maintenance and Troubleshooting
4.6 Alarm Codes, Descriptions, and Suggested Actions
# Text
1084 + I2C Timeout on %4
1085 + I2C Read Past End on %4
1086 + I2C Buffer Overflow on %4 All PICs: The combination of the transmit
1087 + I2C Write Past End on %4
1088 + I2C Resync Error on %4
1089 + I2C Write Unexpected Stop
on %4
1090 + I2C Write Unexpected
Start on %4
50
Description
All PICs: An I2C communication timeout
timer has expired. The timer is reset after
each successful character processed.
Only an addressed module may gener‐
ate a timeout. The timeout can occur on
incoming and outgoing characters.
All PICs: The I2C communication master
did not stop reading after the complete
response had been sent.
and receive I2C message was too large,
causing a buffer overflow. (With kernel
revision 1: SSP_READ_UNEXPEC‐
TED_STOP, a stop condition occurred
before the end of the response).
All PICs: In an I2C message, more than
the number of bytes specified by the
length was written. The extra bytes are
ignored.
All PICs: Severe I2C error, causing the
current message to be dropped. Commu‐
nication will re-synchronize after the next
START or STOP condition. Usually as‐
sociated with alarm 1092.
All PICs: A new I2C message was re‐
ceived in the middle of a write. The old
message was discarded and the new
message is served (this message may
be out of sequence and therefore cause
other flags to be set).[With kernel revi‐
sion 1: SSP_WRITE_UNEXPEC‐
TED_STOP, during a slave write a stop
condition occurred before the message
was completed. The message is ignor‐
ed.]
All PICs: A new I2C message was re‐
ceived in the middle of a read. The old
message was discarded and the new
message is served (this message may
be out of sequence and therefore cause
other flags to be set). [With kernel revi‐
sion 1: SSP_WRITE_UNEXPEC‐
TED_START, during a slave write a Start
or Repeat Start (RS) condition was de‐
tected before the entire message was re‐
ceived (according to the length field). The
message is ignored and processing re‐
sumes following the Start or Repeat
Start.]
Action
Contact Customer Support.
Contact Customer Support.
Contact Customer Support.
Contact Customer Support.
Contact Customer Support.
Contact Customer Support.
Contact Customer Support.
Maxum edition II Analyzer General Maintenance
Manual, August 2018, A5E42019842001