Appendix D - I/O Signal Descriptions
146 3A2098S
Appendix D - I/O Signal Descriptions
This section provides details about the CGM and DGM
Automation Input and Output signals.
Automation Inputs
Dispenser (Fluid Plate) Ready
This signal is 0 on power up. This signal will be 1 under
in the following conditions:
• The system is in an active state, and
• The dispenser (fluid plate) does not have an
active Alarm (Deviations have no effect).
Dispenser (Fluid Plate) No Alarm
For systems with a CGM, this signal will be 1 under the
following condition:
• The system does not have an alarm.
• For systems with a DGM, this signal can be
configured to be active high or active low. See
Discrete Gateway (Automation) Setup
Screen, page 109.
Dispenser (Fluid Plate) No Error
For systems with a CGM, this signal will be 1 under the
following condition:
• The system does not have an error (alarm,
deviation, or advisory).
• For systems with a DGM, this signal can be
configured to be active high or active low. See
Discrete Gateway (Automation) Setup
Screen, page 109.
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 (Fluid Plate) Purge Request
This signal is 1 on power up if a purge interval has been
defined, 0 on power up otherwise. Any dispensing will
turn off this bit and reset the purge timer. This signal will
be 1 under the following condition:
• The system purge interval timer has expired.
Dispenser (Fluid Plate) 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
signal shall remain asserted until the dispense
equipment has achieved Dispense Ready
status.
• 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
Module. The following signals are used to communicate
this information to the automation controller.
Pressure Units
Errors
Error numbers are formed by 8 bits. This is the error
number in the system.
Value Units
0
psi
1
bar
2
MPa
3
reserve
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