Graco ProMix PD3K Plus Operation page 34

Operation Using a Programmable Logic Controller (PLC)
ProMix ProMix PD3K+ ProMix PD3K+ Network PD3K+ Network Inputs Network
The ProMix PD3K+ 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 PD3K+.
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: The PD3K+ system does not refresh the values for these registers. At power up all input registers initialize
NOTE: NOTE:
to invalid values.
INPUT REGISTER INPUT INPUT REGISTER REGISTER 00: 00: System 00:
The System Mode Command register accepts a number that represents a command to the PD3K+ 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
Input Input Value Operation Operation Operation Mode
0
No OP
1 Power Pumps
2 Remote Stop
3 Recipe Change
4 Mix Fill
5 Mix
6 Purge A
7 Purge B
8
Purge C
9 Purge D
10
Standby
11 Recipe Purge
12 Solvent Purge
INPUT REGISTER REGISTER 01: 01: Clear
INPUT INPUT REGISTER 01:
The Clear Active Alarm register is used to
acknowledge an alarm remotely so that the system
may resume operation. Be sure that the alarm
condition has been alleviated. Write a 1 to this
register to acknowledge the latest active alarm. If
more than one alarm is currently active only the most
recent alarm will be acknowledged. A repeated write
should be performed to clear any remaining active
alarms. See figure 9.
(See System Errors, page 97
on clearing alarms.)
NOTE: This register is not polled by the ProMix
NOTE: NOTE:
PD3K+. An alarm is cleared only when a value of '1'
34
Inputs Inputs
System Mode System Mode Command Mode Command Command
Description
Mode Mode Description Description
The system takes no action.
The system powers on or powers off the pumps.
The system stops all current operations and turns off power to the
pumps.
The system initiates a recipe change. (See also Register 2.)
The system fills the mix manifold(s) and gun with material at ratio for
a valid recipe.
The system initiates a mix/spray cycle.
The system purges only Material A out through the gun.
The system purges only Material B out through the gun.
The system purges only Material C out through the gun.
The system purges only Material D out through the gun.
The system puts all active pumps into Standby mode.
The system automatically determines the purge sequence required
based on the loaded recipe.
The system initiates the solvent push sequence while mixing/spraying.
Clear Active Active Alarm/Deviation Alarm/Deviation
Clear Active Alarm/Deviation
for more information
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.*
INPUT REGISTER INPUT INPUT REGISTER 02: REGISTER 02: Go 02:
The Go to Recipe Number register is used as a
queue for the next recipe to be loaded when a recipe
change is initiated. A number between 0 and 40 can
be written to this register. However, a recipe must be
enabled via the ADM before it can be loaded. See
Recipe Screen 1, page
NOTE: NOTE: Writing to this register does not trigger a recipe NOTE:
See Color Change Sequence, page
change.
Go to to to Recipe Go Recipe Number Recipe Number Number
76.
43.
3A6287E