Appendix D - I/O Signal Descriptions; Automation Inputs - Graco PCF Instructions And Parts

Appendix D - I/O Signal Descriptions

Appendix D - I/O Signal Descriptions

Automation Inputs

Dispenser Ready
This signal is 0 on power up. This signal will be 1 under
the following conditions:
• The system is in an active state, and
• the system does not have an active Alarm
(Deviations have no effect).
Dispenser No Alarm
This signal will be 1 under the following condition:
• The system does not have an alarm.
Dispenser No Error
This signal will be 1 under the following condition:
• The system does not have an error (alarm or
deviation).
Dispense in Process
This signal is 0 on power up. This signal will be 1 under
the following condition:
• The system is in the middle of a job.
Dispense Volume OK
This signal will be 1 under the following conditions:
• The system has completed a job, and
• the volume of the job is within the tolerance
specified, and
• the style strobe is 1.
Dispenser Purge Request
This signal is 0 on power up. This signal will be 1 under
the following condition:
• The system purge interval timer has expired.
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Dispenser Remote Start / Purge in Process
This signal is 0 on power up. This signal will be 1 under
the following conditions:
• A remote start sequence is in process. This sig-
nal shall remain asserted until the dispense
equipment has achieved Dispense Ready sta-
tus.
• A purge sequence is in process. This signal
shall remain asserted until the purge sequence
is complete.
Units
All units settings are set in the Advanced Display Mod-
ule. The following signals are used to communicate this
information to the robot.
Pressure Units
Value Units
psi
0
bar
1
MPa
2
reserve
3
Errors
Error numbers are formed by 8 bits. This is the error
number in the system.
Dispensed Volume
A 16-bit number indicates the volume dispensed in the
last job. It is always in cc units.
Outlet Pressure
A 16-bit number indicates the current outlet pressure of
the fluid plate. Applicable in all control modes. Units of
this number are dependent on the pressure units set-
ting.
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