252301 Issue 2.0.pdf - 第35页

GEM Manual for DEK Printers Capabilities I ssue 2.0 June 9th, 2011 page 35 of 156 Proce ss State Model The process state be haviour is describe d by the following state model: State Diagram : State Definitions: EQUIPMENT…

GEM Manual for DEK Printers Capabilities

Issue 2.0 June 9th, 2011 page 34 of 156

Transition Table:

# Current State Trigger New State Action Comment

1 (Entry to Control) Power up complete.

Depends upon EC

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.

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

[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.

EC - Equipment constant.

GEM Manual for DEK Printers Capabilities

Issue 2.0 June 9th, 2011 page 35 of 156

Process State Model

The process state behaviour is described by the following state model:

State Diagram:

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

RECOVERY

EQUIPMENT

MAINTENANCE

EQUIPMENT

READY

EQUIPMENT

SET-UP

EQUIPMENT

DOWN

EQUIPMENT

RUNNING

EQUIPMENT

WAITING

GEM Manual for DEK Printers Capabilities

Issue 2.0 June 9th, 2011 page 36 of 156

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.

Transition Table:

# Current State Trigger New State Action Comment

1 EQUIPMENT

RECOVERY

All software and hardware

initialisation has been

completed.

EQUIPMENT

READY

None Machine has been restored to

its ready condition following

from an error situation.

2 EQUIPMENT

READY

1. Operator action to select

run mode.

2. Host action to select run

mode.

EQUIPMENT

RUNNING

None Equipment is now printing

3 EQUIPMENT

RUNNING

1. Paste dispense cycle.

2. Clean screen cycle.

EQUIPMENT

SETUP

None This covers automatic or

manual paste dispenses and

automatic screen clean cycles

4 EQUIPMENT

SETUP

Completion of:

1. Paste dispense cycle.

2. Clean screen cycle.

EQUIPMENT

RUNNING

None State subsequent to the state

above when the function is

complete.

5 EQUIPMENT

RUNNING

1. Process material being

loaded from the upline

machine.

2. Process material being

unloaded to the downline

machine.

EQUIPMENT

WAITING

None Printer is in this state when

waiting to unload or load

boards to/from the external

machine.

6 EQUIPMENT

WAITING

1. Process material

successfully loaded from the

upline machine

2. Process material

successfully unloaded to the

downline machine and next

process material successfully

loaded from the upline

machine.

EQUIPMENT

RUNNING

None Board delivered or received

to/from external machine.