3 UCN Status Displays
3.7 HPMM Detail Status Displays
R688 HPM High-Performance Process Manager Service 237
December 2020 Honeywell
HPMM I/O Link status
The status of the HPMM as an I/O Link node is defined in the following table.
Table 45 HPMM I/O Link Information Display
The current I/O Link receive channel (CHANNEL A or
CHANNEL B) for the HPMM.
CABLE A ERRORS
CABLE B ERRORS
CABLE A SILENCES
CABLE B SILENCES
Running totals are displayed of the errors/silences
detected for each I/O Link cable Interface since the
startup of the HPMM or the last reset of the error data.
For diagnostic purposes, these totals can be reset to
zero by selection of the RESET HPMM COMM ERRS
target.
The last I/O Link error detected by the HPMM. This error
is set to NONE by selection of the RESET HPMM
COMM ERRS target.
The current status of the I/O Link processor
(OK or ERROR).
TOKEN PASSING
INFORMATION
DROPS The number of token drops detected
by the I/O Link processor.
STALL TIME The token stall time (fixed) in
microseconds (xxx MICROSECONDS).