Operation Using a Programmable Logic Controller (PLC)
ProMix
ProMix
ProMix PD2K
PD2K
PD2K Network
Network
Network Inputs
Inputs
Inputs
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
INPUT
INPUT REGISTER
REGISTER
REGISTER 00
00
00 and
and
and 10:
10:
10: System
System
System
Mode
Mode
Mode Command
Command
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
Input
Input Value
Value
Value
Operation
Operation
Operation Mode
Mode
Mode
Description
Description
Description
0
No OP
The Mix Unit takes no action.
1
Power Pumps
The Mix Unit powers on or powers off the pumps.
2
Remote Stop
The Mix Unit stops all current operations and turns off power to the
pumps.
3
Recipe Change
The Mix Unit initiates a recipe change. (See also Input Register 02
and 12..)
4
Mix Fill
The Mix Unit fills the mix manifold and gun with material at ratio for
a valid recipe.
5
Mix
The Mix Unit initiates a mix/spray cycle.
6
Purge A
The Mix Unit purges only Material A out through the gun.
7
Purge B
The Mix Unit purges only Material B out through the gun.
8
Standby
The Mix Unit puts both active pumps into Standby mode.
9
Recipe Purge
The Mix Unit automatically determines the purge sequence required
based on the loaded recipe.
10
Solvent Push
The Mix Unit initiates the solvent push sequence while mixing/spraying.
INPUT
INPUT
INPUT REGISTER
REGISTER
REGISTER 01
01
01 and
and
and 11:
11:
11: Clear
Clear
Clear Active
Active
Active
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 28
). In
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.
A repeated write should be performed to clear any
remaining active system errors.
(See
for more information on
alarms and deviations.)
NOTE:
NOTE:
NOTE: This register is not polledd by the ProMix
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’.
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