adccommunitymod (AutomationDirect) asked a question.
Flow meter with a DL260
Created Date: May 13,2004
Created By: rv
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Anyone know how to do this?..... Take a pulse input from a flowmeter...make the 260 calculate instantaneous gallons per minute, and also give total gallons. Love the 260, but it needs a totalizer / integrator block. Thanks, rv
Created Date: May 13,2004
Created by: rv
Anyone know how to do this?.....
Take a pulse input from a flowmeter...make the 260 calculate instantaneous gallons per minute, and also give total gallons.
Love the 260, but it needs a totalizer / integrator block.
Thanks,
rv
Created Date: May 14,2004
Created by: Gerry
Take a look at using the H2-CTRIO High Speed Counter Card.
Created Date: May 17,2004
Created by: rv
Yes, but what about the logic to get it done? Have you done anything similar?
rv
Created Date: May 17,2004
Created by: marksji
Here's what I use. The flowmeter I use just gives me a pulse every gallon which makes the code easy and also means no expensive high speed counter card is needed (for my app anyway).
PLC 260
// Rung 1
// Address 0
STR C601
PD C141
// Rung 2
// Address 2
STR C140
LD K6000
DIV TA140
BIN
BTOR
DIVR R10
OUTD V3370
LD K0
OUT TA140
// Rung 3
// Address 13
STR SP1
TMR T140 K9999
// Rung 4
// Address 17
STR T140
LDR R0
OUTD V3370
// Rung 5
// Address 22
STR C140
STR SP2
STR SP2
UDC CT150 K9999999
// Rung 6
// Address 28
NOP
#BEGIN ELEMENT_DOC
"C140 ", "PD FRESH GAL ", " ", " "
"C141 ", "PD PURGE GAL ", " ", " "
"C600 ", "PURGE GAL ", " ", " "
"C601 ", "FRESH GAL ", " ", " "
"T140 ", "FRSH GPM TMR ", " ", " "
"T141 ", "PRG GPM TMR ", " ", " "
"CT150 ", "T Gal Fresh ", " ", " "
"CT152 ", "T Gal Purge ", " ", " "
"V3370 ", "GPM FRESH INST ", "REAL ", " "
"V3372 ", "GPM PURGE INST ", "REAL ", " "
#END
Created Date: May 17,2004
Created by: Gerry
Mark nice solution. http://forum1.automationdirect.com/board/smile.gif
Sam, With the HSC card I haven't done flow totalizing, just strip speed and length. But, it should be almost the same thing. Look at 3-16 in the manual. If you use the rate function it will give you GPM. If you use the position function, this should give you the flow totalizing.
Check it out and see if it fits the bill!