Alarms 2500 - 2577 Access Bus Driver Errors - Siemens Maxum II Manual

General Maintenance and Troubleshooting
4.6 Alarm Codes, Descriptions, and Suggested Actions
4.6.13

Alarms 2500 - 2577 Access Bus Driver Errors

GCP Alarm Descriptions 2500 - 2577 Access Bus Driver Errors
The following tables list the alarm number (#), type (+ information, ? warning, ! error) alarm
text, description, and actions.
# Text
2500 ? I2C Premature Stop on %4 SNECON I2C driver: A stop condition
2501 ? I2C No Acknowledge (Mod‐
ule Disconnected?) on %4
2502 ? I2C NS486 Timeout Over‐
flow on %4
2503 ? I2C Address is Odd on %4
2505 ? I2C Driver Not Initialized
2508 ? I2C Improper Acknowl‐
edge on %4
2509 ? I2C Invalid Message
Checksum Received on %4
2510 ? I2C Module Not Found: %4 SNECON I2C driver: No module of this
2511 ? I2C Invalid Opcode Re‐
ceived from %4
2512 ? I2C Error Reading ISR
Queue
2513 ? I2C Message Too Big on
%4
2515 ! I2C Address Table Full
62
Description
was detected in the middle of a transfer
(SNECON hardware revision 2.x).
SNECON I2C driver: No module re‐
sponding to the I2C address. A module
was disconnected or is no longer re‐
sponding. This can also happen if the
PIC-index is erroneously set to 0 as this
is a way to bypass the I2C address reso‐
lution table and directly address the I2C
bus.
SNECON I2C driver: An I2C commu‐
nication timeout condition was detected
(SNECON hardware revision 2.x).
SNECON I2C driver: Illegal I2C address. Reset the analyzer. Reload SNE‐
SNECON I2C driver: An attempt was
made to communicate to the I2C driver
before it was initialized.
SNECON I2C driver: No module re‐
sponding to the I2C address. A module
was disconnected or is no longer re‐
sponding (SNECON hardware revision
2.x).
SNECON I2C driver: A message was re‐
ceived with an invalid checksum.
'module type' and 'location id' is listed in
the address table.
SNECON I2C driver: The message re‐
ceived corresponds to an unrecognized
opcode.
SNECON I2C driver: An error was detec‐
ted reading a communication queue
(SNECON hardware revision 2.x).
SNECON I2C driver: The I2C message
received is too large and is not valid.
SNECON I2C driver: No free addresses
on the I2C bus. There is a limit of 120
addresses per bus (each PIC occupies
one address).
Action
Contact Customer Support.
Reset the analyzer.
Contact Customer Support.
CON OS software.
Reset the analyzer.
Reload SNECON OS and APP soft‐
ware.
Contact Customer Support.
(SNECON hardware revision 2.x): Ver‐
ify that the application does not use a
hardware address that does not exist.
Reset the analyzer.
Verify that the application does not use
a hardware address that does not exist.
Reset the analyzer.
Reload SNECON OS and APP soft‐
ware. Replace the SNECON.
Reset the analyzer.
Contact Customer Support.
Reset the analyzer.
Maxum edition II Analyzer General Maintenance
Manual, August 2018, A5E42019842001