semi合集-English.pdf - 第1397页
SEMI E30-1103 © SEMI 1992, 2003 71 4.12.5 Scenarios 4.12.5.1 Operator-Initiated Scenarios Host Accepts ON-LINE: COMMENTS HOST EQUIPMENT COMMENTS Operator actuates ON-LINE switch when equipment OFF-LINE state is active. &…
SEMI E30-1103 © SEMI 1992, 2003
70
LINE with an S1,F2 or deny ON-LINE by sending an
S1,F0.
23
When the equipment is ON-LINE, the host may request
that it transition to OFF-LINE. It will transition into the
HOST OFF-LINE substate. When the equipment
HOST OFF-LINE state is active, the host may request
that it transition to ON-LINE. The combination of these
two allow the host to cycle the equipment between ON-
LINE and OFF-LINE.
Only the operator may change the ON-LINE substate
(REMOTE or LOCAL).
4.12.4 Requirements
— The equipment shall supply a method for
configuring the default CONTROL state to be
activated upon system initialization. The choice of
states must be among ATTEMPT ON-LINE,
EQUIPMENT OFF-LINE, HOST OFF-LINE, and
ON-LINE.
— The equipment shall supply a method for
configuring which state should be activated when
the attempt to go ON-LINE fails. The option is a
transition to either the HOST OFF-LINE state or the
EQUIPMENT OFF-LINE state.
— The equipment shall supply a momentary switch
which will initiate the transition to OFF-LINE and
another which will begin the process to go ON-
LINE. Discrete position switches shall not be used.
These should be designed so that they may not be
actuated simultaneously. The switch may be
mounted on the front panel or be available via
keyboard input at the operator console.
— The equipment shall supply a discrete two-position
switch which the operator may use to indicate the
desired substate for ON-LINE (i.e., REMOTE or
LOCAL). The switch may be mounted on the front
panel or be available via keyboard input at the
operator console. If implemented in software, this
setting shall be retained in non-volatile storage.
— The equipment shall supply an indicator on the front
panel which displays the full identification of the
current CONTROL state/substate (e.g., OFF-
LINE/ATTEMPT ON-LINE). This may be
accomplished either with labelled display lights or
23 If there is no host response (i.e. reply timeout), the equipment shall
treat it as a denial.
via the operator console display. It is recommended
that this indicator be visible at all times.
— The equipment shall supply a status variable that
contains the current state/substate of the CONTROL
state model.
— Whenever the ON-LINE/REMOTE state is active
and the operator issues a command to the
equipment, the equipment shall cause an “operator
command issued” event.
SEMI E30-1103 © SEMI 1992, 2003
71
4.12.5 Scenarios
4.12.5.1 Operator-Initiated Scenarios
Host Accepts ON-LINE:
COMMENTS HOST EQUIPMENT COMMENTS
Operator actuates ON-LINE switch when equipment OFF-LINE state is active.
<--S1,F1 Equipment requests ON-LINE.
Host grants ON-LINE. S1,F2-->
<--S6,F11 “Control State LOCAL (or
REMOTE)” event.
Acknowledge. S6,F12-->
Host Denies ON-LINE:
COMMENTS HOST EQUIPMENT COMMENTS
Operator actuates ON-LINE switch when equipment OFF-LINE state is active.
<--S1,F1 Equipment requests ON-LINE.
Host denies ON-LINE. S1,F0-->
Operator Sets OFF-LINE:
COMMENTS HOST EQUIPMENT COMMENTS
Operator actuates OFF-LINE switch when equipment ON-LINE state is active.
<--S6,F11 “Equipment requests OFF-LINE”
event.
Acknowledge. S6,F12-->
Operator Sets REMOTE:
COMMENTS HOST EQUIPMENT COMMENTS
Operator sets switch from LOCAL to REMOTE.
<--S6,F11 “Control State REMOTE” event.
Acknowledge. S6,F12-->
Operator Sets LOCAL:
COMMENTS HOST EQUIPMENT COMMENTS
Operator sets switch from REMOTE to LOCAL.
<--S6,F11 “Control State LOCAL” event.
Acknowledge. S6,F12-->
SEMI E30-1103 © SEMI 1992, 2003
72
4.12.5.2 Host-Initiated Scenarios
Host Sets OFF-LINE:
COMMENTS HOST EQUIPMENT COMMENTS
Host requests OFF-LINE. S1,F15-->
[IF] Equipment is OFF-LINE
[THEN]:
<--S1,F0 Equipment does not process
requests.
[ELSE] Equipment ON-LINE
<--S1,F16 Equipment acknowledges request
and transitions to OFF-LINE.
<--S6,F11 “Equipment OFF-LINE” event.
Acknowledge S6,F12-->
[END_IF]
Host Sets ON-LINE:
COMMENTS HOST EQUIPMENT COMMENTS
Host requests ON-LINE. S1,F17-->
[IF] Equipment is HOST OFF-LINE
state not active.
[THEN]
<--S1,F18 Equipment denies request
(ONLACK = 1).
[ELSE] Equipment HOST OFF-LINE
state is active.
<--S1,F18 Equipment acknowledges request
(ONLACK != 1).
<--S6,F11 “Control state LOCAL (or
REMOTE)” event.
(only if ONLACK = 0)
Acknowledge S6,F12-->
[END_IF]