Graco ProMix PD2K, Operation

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Operation Using a Programmable Logic Controller (PLC)
Write Write Write Material Material Material Ready Ready Ready Flag Flag Flag
The Write Material Ready Flag command is used to signal to the PD2K that the upstream material management has
the appropriate color/catalyst loaded at the inlet valve stack(s) of the pump(s) prior to a recipe change. This flag is
only used when multiple materials for a pump are fed to the PD2K via a single valve at the inlet valve stack (i.e. a
piggable system). See
Custom Valve Mapping, page 82 for more info on Single inlet valve stacks.
NOTE: NOTE:
NOTE: This flag should be cleared prior to or during a material change operation upstream of the inlet valve stack to
avoid having the wrong material being fed into the pump during a recipe change.
Example: Setting the Material Ready Flag for Mix Unit #1.
DCS DCS DCS Register Register Register Parameter Parameter Parameter Description Description Description Data Data Data
Type
Type
Type
Units Units Units Value Value Value Range Range Range
DCS
Command
Write Material Ready Flag uint32
NONE
6 0 - 21
Argument 0 Mix Unit # uint32 NONE 1 1 - 2
0 := Not
Ready/No OP Argument 1 Material Ready Status uint32 NONE 1
1 := Material
Ready
Acknowledge Command Acknowledged uint32 NONE 2 = ACK 0 - 4
Return 0 Mix Unit # uint21 NONE 1 1 - 2
0 := Not
Ready/No OP Return 1 Material Ready Status uint32 NONE 1
1 := Material
Ready
Read Read
Read User
User
User ID
ID
ID
The Read User ID command reads back the current User ID. See Usage Screen, page 66 , for more details on Job
Log and User ID. The User ID can be up to ten ASCII characters in length and is packaged as three little endian
segments of ASCII characters. No arguments are required.
Example: Read Mix Unit #1 User ID that is currently “John Doe”.
DCS DCS
DCS Register
Register
Register Parameter Parameter Parameter Description Description Description Data Data Data
Type
Type Type
Units Units Units Value Value Value Range Range Range
DCS
Command Read User ID uint32 NONE 10 0 - 16
Argument 0 Mix Unit uint32
NONE
1 1 - 2
Acknowledge Command Acknowledged uint32 NONE 2 = ACK 0 - 4
Return 0 Mix Unit uint32 NONE 1 1 - 2
Return 1 User ID characters [3:0]
(ASCII) uint32
NONE 0x6E686F4A = [‘n’,
’h’, ’o’, ’J’]
N/A
Return 2 User ID characters [7:4]
(ASCII) uint32 NONE 0x656F4420 = [‘e’,
’o’, ’D’, ’ ‘] N/A
Return 3 User ID characters [9:8]
(ASCII) uint32
NONE
0x0 = [null] N/A
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