Rockwell Automation 57C329 Remote I/O Communications, AutoMax - Manual (Page 78)

5Ć2
Therefore, if application tasks running on a Processor module in the
master rack access variables on this Remote I/Omodule, you should
stop the application tasks before doing the selfĆtest to avoid shutting
down the system with a bus error.
5.1.2 Status (S)
Entering S" will display at the operator's console all the parameters
associated with the module. All line statistic parameters will increase
to 65535 and then roll over to zero. All drops will display the following
status information:
SOFTWARE PART NUMBER 419451Ć0nnx
(nn is the part version number; x is the part revision number)
CHASSIS IS ACTIVE or INACTIVE
LINE IS ACTIVE or INACTIVE
MODE IS PROGRAM, MEMORY PROTECT
(NORMAL), or SETUP
DROP NUMBER 0 through 7
MESSAGES RECEIVED: n
ąRECEIVE TIMEOUTS n
ąCRC ERRORS n
ąOVERRUN ERRORS n
ąABORT ERRORS n
MESSAGES SENT: n
where:
MESSAGES RECEIVED is the total number of messages received
by the module. While the line is inactive, this value will remain
unchanged. While the line is active, it will constantly increase in
value.
RECEIVE TIMEOUTS is the total number of timeouts that have
occurred while the drop was waiting for a message to be
received. While the line is inactive, the master module will
indicate a value fluctuating between 0 and 3 and the slave
module will indicate a value of 0.
CRC ERRORS is the total number of cyclic redundancy check
errors that have occurred since the last reset of the module. This
number should ideally remain equal to zero.
OVERRUN ERRORS is the total number of message overrun
errors that have occurred since the last reset of the module. This
number should ideally remain equal to zero.
ABORT ERRORS is the total number of message abort errors that
have occurred since the last reset of the module. This number
should ideally remain equal to zero.
MESSAGES SENT is the total number of messages transmitted
by the module. While the line is inactive, this value for the master
module will rapidly increase since init request" messages are
constantly being sent. For the slave modules, it will remain
unchanged. While the line is active, this value will constantly
increase.
The four error parameters (RECEIVE TIMEOUTS, CRC, OVERRUN,
and ABORT) indicate coaxial line integrity (or lack of it). A few errors
may accumulate over a period of time, such as hours or days, but
when these parameter values increase consistently over a period of