A Famous Question

[crying_baby]

hello, im having troubvle with the very last timer counter that keep counting backwoard instead of forward. can some1 help me point where is my mistake plz.


this is CW (plz dun use the full name ) else no ppl will post here -.-"

¦PROGRM ¦TABLES ¦STATUS ¦ ¦ ¦ ¦SETUP ¦FOLDER ¦UTILTY ¦PRINT

1insert 2edit 3modify 4search 5 6 7option 8goto 9more 10zoom

[ START OF PROGRAM LOGIC ]

START STOP %M0002

--¦ +-----¦/+-------------------------------------------------------------( )--

¦

%M0002 ¦

--¦ +--+

%M0002 SYST_ON

--¦ +---------------------------------------------------------------------( )--

START CPSENSR STOP CAR_OK

--¦ +-----¦ +-----¦/+-----------------------------------------------------( )--

START CPSENSR STOP +-----+ %M0001

--¦ +-----¦ +-----¦/+---¦ONDTR+-------------------------------------------( )--

¦0.10s¦

STOP ¦ ¦

--¦ +-------------------¦R ¦

¦ ¦ ¦

CPSENSR¦ ¦ ¦

--¦/+--+ CONST -¦PV ¦

+00150 ¦ ¦

+-----+

%R0001

+00732

STOP CPSENSR %M0001 %M0006 SOAPWTR

--¦/+-----¦ +-----¦ +-----¦/+---------------------------------------------( )--

STOP CPSENSR SOAPWTR +-----+ %M0006

--¦/+-----¦ +-----¦ +---¦ONDTR+-------------------------------------------( )--

¦0.10s¦

STOP ¦ ¦

--¦ +-------------------¦R ¦

¦ ¦

¦ ¦

CONST -¦PV ¦

+00100 ¦ ¦

+-----+

%R0002

+00582

STOP %M0006 %M0006 RINSWTR

--¦/+-----¦ +-----¦ +-----------------------------------------------------( )--

STOP CPSENSR RINSWTR +-----+ %M0006

--¦/+-----¦ +-----¦ +---¦ONDTR+-------------------------------------------( )--

¦0.10s¦

STOP ¦ ¦

--¦ +-------------------¦R ¦

¦ ¦

¦ ¦

CONST -¦PV ¦

+00060 ¦ ¦

%R0003

-15804

[ END OF PROGRAM LOGIC ]

 

[BobB]

Timers and counter normally count from the preset down.

Perhaps you have an up counter instruction you can use. Most PLCs I have used have an up counter. Use an internal tick to operate it.

 

[STEVEBOT]

Looking quickly at the text file this looks like LM90 GE and timers in that use 3 consecutive registers so us %r1 %r4 %r7 for your timers not %r1 %r2 %r3.
Steveb

 

[crying_baby]

thank for all advice . i think yes, its likely to be my timers address . i'll go try again