Internet PLC Forum

Hi everyone i hope all is well i am just trying to pick your brains.  can you tell me if you can vary the voltage on the Dac and how much current is also there is it proportional to the voltage my units are 888. is it possible with which commands
 
thanks Karen

is there any notes about how to interface the 232 port to an external graphic display or what is the best way to do this task

thanks

karen

is it possible to input two variables using the same keys
so you have the up down keys to change a number on the screen then the enter keys to input the variable then the screen changes and using the same up down key to change the number and the same enter key to key in the variable
thanks

karen

where on the site can i download the java classes that are listed under the gui example that you have

thanks

karen

please can you tell me how i can make the screen show 1 and not 239 when i press the button other wise i have to keep pressing the button until it reaches the lower numbers



x = x - 17 ' Progressive increment after every call
IF x > 3800 THEN j=0: ENDIF
IF x > 3800 THEN x=0: ENDIF
j = 240 - X*240/3800

SETLCD 0,1,CHR$(1)  ' clear screen
SETLCD 1,1,"Select Current          "
SETLCD 2,1,"Current =" +str$(j)
SETLCD 4,1,"Press Enter"

thanks

x = x + 8 ' Progressive increment(??) after every call  
IF x > 3800 THEN  
    j = 0
    x = 0    
ELSE  
    j = 240 - X*240/3800  
ENDIF
  


SETLCD 0,1,CHR$(1)  ' clear screen
SETLCD 1,1,"-------INPUT---------"
SETLCD 2,1,"      Current"
SETLCD 3,1,"        "+str$(j)+" ma"        
SETLCD 4,1,"_____Press Enter____ "

how do i show a the number with a decimal point the variable is j  

thanks

U= ADC(1)/10 ?'this is the input from the lm35 temprature chip

IF U < 60 'turn heater on
SETIO Heater
SETLCD 0,1,CHR$(1) ?' clear screen
SETLCD 1,1,"_______AURIUM_______ "
SetLCD 2,1, ""
SetLCD 3,1, " Warming Au Solution"
SETLCD 4,1,"___________________"+CHR$(126)
ENDIF

IF U > 63
CLRIO Heater
T = T+1 ?' Variable T is used as a timer.
A = T/3600 ? ? ? ? ?' Hour
B = (T MOD 3600)/60 ' Minute
C = T MOD 60 ? ? ? ?' seconds.
T$ = STR$(A)+":"+STR$(B)+":"+STR$(C)+" ? ? "
SETLCD 0,1,CHR$(1) ?' clear screen
SETLCD 1,1,"___ELECTROFORMING___"
SetLCD 2,1," ? ?Plating Time ? ?"
SETLCD 3,1," ? ? ?"+T$
SETLCD 4,1,"____________________"
ENDIF


Y=665+J 'set the speed of the motor
g = x - (j+80) 'adjust the current


SETDAC 1,y 'motor control
SETDAC 2,g 'set the current



IF m = 1 and T >= 25200 ? ' 7 hours = 25200 seconds.
CLRIO Motor
CLRIO Heater
CLRIO CurrentRly
CLRIO Temp_Cont
SETLCD 2,1," Process Completed!"
SETLCD 3,1," ?Remove Copings "
SetDac 2,3800
ENDIF

IF m = 2 and T >= 32400 ? ' 9 hours = 32400 seconds.
CLRIO Motor
CLRIO Heater
CLRIO CurrentRly
CLRIO Temp_Cont
SETLCD 2,1," Process Completed!"
SETLCD 3,1," ?Remove Copings "
SetDac 2,3800
ENDIF




i wonder if you can help me with this problem that i have i have removed the relay thermostat that i had and replaced it with the lm35 into the adc(1) this should make reading the tempreture more accurate. Now for the problem. ?i want to show the first screen warming until the temp is reached. then i want to show the screen palting and the timer to start but i also need the temp to be consistant so cutting in at 58 and cut out at 62 how can i customise this to give me this please

thanks Karen