User Manual

SECS Scenarios 5-11
5.3.4 Alarm Report (GEM, Ver 3.1 Compatibility)
" NOTE This scenario is provided only for compatibility with Host computers which
support GEM, Version 3.1.
Table 5-24 SECS Messages Alarm Report (GEM, Ver 3.1 Compatibility)
Step SECS Message Description
1. The equipment constant “ConfigAlarms” is set to 2 for non-
GEM compatibility.
The Equipment recognizes that an alarm condition has gone
“on” (i.e. has become Unsafe).
2. H <- E S5F73 [W] The Equipment reports the Alarm going on. The high-order bit
of ALCD is “1”.
3. H -> E S5F74 If the W-bit of S5F74 is 1, the Host acknowledges the Alarm.
4. The Equipment recognizes that the alarm condition has gone
“off” (i.e. has become Safe).
5. H <- E S5F73 [W] The Equipment reports the Alarm going off. The high-order bit
of ALCD is “0”.
6. H -> E S5F74 If the W-bit in S5F74 is 1, the Host acknowledges the Alarm.