Graco ProMix PD3K Plus, Операция

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Operation Using a Programmable Logic Controller (PLC)
INPUT INPUT
INPUT REGISTER
REGISTER
REGISTER 08:
08:
08: Gun
Gun
Gun Trigger
Trigger
Trigger State
State
State
The Gun Trigger State register is used to signal the
ProMix PD3K+ when an automatic spray device is
triggered. This signal should be sent any time the
spray device is triggered. The state of this register
provides timing for alarm functions and also drives
the flow control algorithm.
The register is formatted as a bit vector with bits 0,
1, and 2 representing gun trigger inputs 1, 2, and 3,
respectively.
NOTE: NOTE: NOTE: If enabled, it is imperative that this signal be
sent any time the spray device is triggered. Without
it, the flow control features will not work.
• Write a value of ‘1’ to bit 0, 1, or 2 to signal gun 1,
2, or 3 is triggered, respectively.
• Write a value of ‘0’ to bit 0, 1, or 2 to signal gun 1,
2, or 3 is NOT triggered, respectively.
NOTE: NOTE:
NOTE: This register is used only if the Gun Trigger
is set to ‘Network’ via System Screen 6 on the ADM.
If it is set to ‘Discrete’ this register is ignored and
gun trigger is handled via the discrete input. See
Digital Inputs, page 24 .
NOTE: NOTE:
NOTE: Because timing is so critical for flow control,
Graco recommends that users provide a discrete
input to minimize latency effects.
Input Register 08,
Bit 0
Gun Trigge r 1
Discrete Signal
1 0 1 0
ProMix PD3K+
Gun Trigge r 1 S ta te
Figure 14 Gun Trigger Timing (Network and Discrete
Signals Shown
INPUT INPUT
INPUT REGISTER
REGISTER
REGISTER 9:
9:
9: Set
Set
Set Active
Active
Active Gun
Gun
Gun
The Set Active Gun register allows for remotely
changing between guns for purging or spraying.
NOTE: NOTE: NOTE: If the system is not configured for more than
1 gun, this register is ignored.
INPUT INPUT INPUT REGISTERS REGISTERS REGISTERS 10 10 10 –– – 17: 17: 17: DCS DCS DCS Command Command Command
Structure Structure
Structure
See Dynamic Command Description, page 47 .
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