SECS GEM Manual.pdf - 第36页
GEM Manual for DEK Printers Capabilities Issue 1.6 January 22, 2018 Page 36 of 171 Process State Model The process state behaviour is described by the following state model: State Diagram: EQUIPMENT RECOVERY EQUIPMENT MA…
GEM Manual for DEK Printers Capabilities
Issue 1.6 January 22, 2018 Page 35 of 171
Transition Table:
# Current State Trigger New State Action Comment
1 (Entry to Control) Power up complete. Depends upon EC
1
. None See GemInitControlState EC.
2 (Entry to Control) Power up complete. Depends upon EC. None See GemOfflineSubstate EC.
3 Equipment Off-Line Operator switch. Attempt On-Line. S1F1
4 Attempt On-Line S1F1 fails.
Depends upon EC
.
None See GemOfflineSubstate EC.
5 Attempt On-Line S1F1 succeeds. ON-LINE
conditional.
None See GemOnlineSubstate and
GemPreviousControlState EC's.
6 ON-LINE, LOCAL
or REMOTE
Operator switch. Equipment Off-Line Save
state.
New GemPreviousControlState.
7 (Entry to Control) Power up complete. Depends upon EC. None See GemOnlineSubstate EC.
8 LOCAL Operator switch. REMOTE None
9 REMOTE Operator switch. LOCAL None
10 ON-LINE, LOCAL
or REMOTE
Host S1F15. Host Off-Line Save
state.
New GemPreviousControlState.
11 Host Off-Line S1F17. ON-LINE conditional None See GemOnlineSubstate.
12 Host Off-Line Operator switch. Equipment Off-Line Save New GemPreviousControlState.
1
EC - Equipment constant.
Scenarios:
Host requests that the equipment transfers to the Off-Line state:
Comments Host Equipment Comments
Host Request Off-Line.
S1F15 -->
<-- S1F0
<-- S1F16
[IF] Equipment in Off-Line.
[THEN]
Equipment does not process request.
[ELSE] Equipment replies Off-Line
acknowledge.
Equipment transfers to the Off-Line state.
Host requests that the equipment transfers to the On-Line state:
Comments Host Equipment Comments
Host Request On-Line.
S1F17 -->
<-- S1F18
<-- S1F18
<-- S1F18
[IF] Equipment is Host: Off-Line state not active.
[THEN] Equipment denies request.
(ONLACK = 1)
[ELSE] Equipment Host: Off-Line state is active.
Equipment acknowledges request.
(ONLACK = 0)
[IF] Equipment is Host: On-Line state is active.
[THEN] Equipment replies On-Line.
Acknowledge with ONLACK = 2 (Equipment
already On-Line.)
Host requests that the equipment performs a remote command:
Comments Host Equipment Comments
Host Command Send.
S2F41 -->
<-- S2F42
Host Command Acknowledge. HCACK = 0
(Assume command can be performed.)
Some of the previous transactions are restricted by the printer’s current processing activity.
GEM Manual for DEK Printers Capabilities
Issue 1.6 January 22, 2018 Page 36 of 171
Process State Model
The process state behaviour is described by the following state model:
State Diagram:
EQUIPMENT
RECOVERY
EQUIPMENT
MAINTENANCE
EQUIPMENT
READY
EQUIPMENT
SET-UP
EQUIPMENT
DOWN
EQUIPMENT
RUNNING
EQUIPMENT
WAITING
1
2
3
6
4
5
7
8
9
10 11
12
13
15
16
17
18
14
19
GEM Manual for DEK Printers Capabilities
Issue 1.6 January 22, 2018 Page 37 of 171
State Definitions:
EQUIPMENT RECOVERY - The equipment recovery state is active during the equipment
initialisation. It is active from power-up of the machine or when recovering from a down state.
EQUIPMENT READY - The equipment ready state is active from the time the equipment is
initialised at power-up until process program material is loaded or another processing state is
selected. No setup or diagnostic activities are occurring.
EQUIPMENT SETUP - In the equipment setup state, the various setup activities of the
machine can be initiated and performed. These activities include the setting of machine
parameters. This state is active for as long as the operator requires to perform the necessary
Setup procedure/s. In addition, the equipment is in the setup state when the head is
opening/open, a paste dispense or clean screen cycle is in operation, a screen or tooling change
is being performed or pressure readings are being taken.
EQUIPMENT RUNNING - The equipment running state is active from the time process
material is loaded until another processing state is selected/instigated.
EQUIPMENT WAITING - The machine is in the equipment waiting state when the
equipment is waiting for process material to be transferred/loaded from the upline machine or
is waiting for process material to be transferred/unloaded to the downline machine. Once these
two activities have been performed, the running state is resumed unless a fault occurs.
EQUIPMENT DOWN - In the equipment down state one or other of the following sub-states
can be in operation:
• A system error has occurred.
• Restart from a system error once the error has cleared.
• Diagnostics - whereby discrete I/O can be controlled to directly control machine movement
for debugging problems and troubleshooting. Internal machine values can be viewed and
modified. This state is active for as long as the operator requires to perform the necessary
diagnostic procedure/s.
• Initial diagnostics - when powering up the machine.
EQUIPMENT MAINTENANCE - The equipment maintenance state is active when
housekeeping and calibration procedures are in operation. This state is active for as long as the
operator requires to perform the necessary procedure/s.