Owner's manual

Equipment-to-Host Messages 3-23
3.4.8 Limits State Transitions
Table 3-14 Limits State Transitions
# From Trigger To Description
1 Enabled Host undefines limits
attributes.
Disabled Host sends S2F45 to undefine
limits.
2 Disabled Host defines limits. Conditional Host sends S2F45 to define
limits.
3 Below Limit Variable changes to
greater than or equal to
UPPERDB.
Above Limit Limit transition event is
signaled to Host if enabled.
4 Above Limit Variable changes to less
than or equal to
LOWERDB.
Below Limit Limit transition event is
signaled to Host if enabled.
5 No Zone Variable changes to less
than or equal to
LOWERDB from No
Zone.
Below Limit Limit transition event is
signaled to Host if enabled.
6 No Zone Variable changes to
greater than or equal to
UPPERDB from No
Zone.
Above Limit Limit transition event is
signaled to Host if enabled.
3.4.8.1 Limits States
A variable’s defined limits may be in any of the states specified in Table 3-15:
Table 3-15 Limits States
State Limits
Enabled Within this super-state, a limit has been defined, and monitoring of
the variable is taking place.
Disabled Limits are not defined.
Below Limit The value of the variable is less than or equal to LOWERDB.
Above Limit The value of the variable is greater than or equal to UPPERDB.
No Zone This limit has just been defined, and the value of the variable is
less than UPPERDB and greater than LOWERDB. No limits
transitions have occurred.