Graco ProMix PD2K Operation page 35

ProMix PD2K PD2K Network Network Inputs
ProMix ProMix PD2K Network
The ProMix PD2K Network Inputs are Write-Read capable, but should be treated as outputs from a PLC or other
networking device. These registers allow the user to control system operation and configure system settings remotely.
Invalid values (i.e. out of bounds or not consistent with system configuration) will be ignored by the ProMix PD2K. All
values must be written as integers. Floating point numbers are not supported.
Do not rely on these registers for Read status, other than to confirm data that has been written and accepted.
NOTE: NOTE: NOTE: The PD2K system does not refresh the values for these registers. At power up all input registers initialize
to invalid values.
INPUT REGISTER REGISTER 00
INPUT INPUT REGISTER
Mode Command Command
Mode Mode Command
The System Mode Command register accepts a number that represents a command to the PD2K system to
initiate a particular operation. Some operation modes may be initiated only under certain conditions (see Figures
5 – 9 for details).
Input Value Value Operation Mode
Input Input Value Operation Operation
0 No OP
1 Power Pumps
2
Remote Stop
3 Recipe Change
4 Mix Fill
5 Mix
6 Purge A
7 Purge B
8
Standby
9 Recipe Purge
10 Solvent Push
INPUT REGISTER REGISTER 01
INPUT INPUT REGISTER
Alarm/Deviation Alarm/Deviation Alarm/Deviation
The Clear Active Alarm/Deviation register is used to
remotely acknowledge a system error. The Event
Flag register indicates whether a system error
requiring acknowledgement exists (see
REGISTER 01 and 27: Event Flag, page
the case of an alarm condition, the alarm must be
acknowledged and resolved before the Mix Unit
is allowed to resume operation. Write a '1' to this
register to acknowledge the latest active system
error. If more than one system error is currently
active, only the most recent will be acknowledged.
3A4486D
Inputs
Inputs
00 and and 10: 10: System System
00 and 10: System
Mode Description
Mode Description Description
The Mix Unit takes no action.
The Mix Unit powers on or powers off the pumps.
The Mix Unit stops all current operations and turns off power to the
pumps.
The Mix Unit initiates a recipe change. (See also Input Register 02
and 12..)
The Mix Unit fills the mix manifold and gun with material at ratio for
a valid recipe.
The Mix Unit initiates a mix/spray cycle.
The Mix Unit purges only Material A out through the gun.
The Mix Unit purges only Material B out through the gun.
The Mix Unit puts both active pumps into Standby mode.
The Mix Unit automatically determines the purge sequence required
based on the loaded recipe.
The Mix Unit initiates the solvent push sequence while mixing/spraying.
01 and and 11: 11: Clear Clear Active Active
01 and 11: Clear Active
OUTPUT
28). In
Operation Using a Programmable Logic Controller (PLC)
A repeated write should be performed to clear any
remaining active system errors.
(See System Errors, page 99
alarms and deviations.)
NOTE: This register is not polledd by the ProMix NOTE: NOTE:
PD2K. A system error is cleared only when a value
of '1' is written to this register. It is recommended
that the automation reset this register by writing a '0'
to it at all other times to avoid inadvertently clearing
an alarm.*
* * * It is recommended to wait at least 500 msec for the
PD2K to process before resetting to '0'.
for more information on
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