Created Date: June 22,2007

Created by: sii

Check out the TMRA instruction. It lets you go up to 9999999.9 in increments of 1/10 second. It is a two input timer as opposed to a 1 input (TMR). The following should give you what you want, X0 being the trigger to start the timer, Y0 the output you wish to stay on. The "K50 " in rung 2 gives a 5 second timer, just change the 50 to whatever time you desire.

// Rung 1

// Address 0

STRPD X0

STR C0

ANDN T0

ORSTR

OUT C0

// Rung 2

// Address 5

STR C0

STR T0

TMRA T0 K50

// Rung 3

// Address 10

STR C0

OUT Y0

// Rung 4

// Address 12

END

// Rung 5

// Address 13

NOP

Created Date: June 23,2007

Created by: jamesjcooper

Ok, I got the TMRA working, I assume the top line is the trigger and the bottom in the reset?

My only problem remaining is that every time I reload the program, or cycle power to the CPU, all the timers activate, one of which is 3 hours. Is there any way to prevent this? In four words of ladder or less? (I am at 96 words and only have the free version)

Created Date: June 24,2007

Created by: jamesjcooper

Like this?

PLC 05

// Rung 1

// Address 0

STR X5

SET S16 S16

// Rung 2

// Address 3

STR S1

OR S6

STRN X0

OR S16

ANDSTR

OUT Y1

// Rung 3

// Address 9

STR S2

OR S6

STRN X0

OR S16

ANDSTR

OUT Y2

// Rung 4

// Address 15

STR S3

OR S6

STRN X0

OR S16

ANDSTR

OUT Y3

// Rung 5

// Address 21

STRN S12

STR S12

TMRA T4 K3600000

// Rung 6

// Address 26

STRN S13

STR S13

TMRA T6 K10800000

// Rung 7

// Address 31

STR S4

STRN T4

ORN T6

AND S21

ORSTR

OUT Y4

// Rung 8

// Address 37

STRN S15

TMR T3 K6000

// Rung 9

// Address 41

STR S5

STRN X0

OR X5

OR S16

ANDSTR

STRN T3

AND S20

ORSTR

OR S15

OR X4

OUT Y5

// Rung 10

// Address 52

STRN S7

STR S7

TMRA T10 K1800000

// Rung 11

// Address 57

STRN S10

STR S7

TMRA T12 K3600000

// Rung 12

// Address 62

STRN T12

ORN T10

AND S20

STR S0

STRN X0

OR X5

OR S16

ANDSTR

ORSTR

ANDN X2

OUT Y0

// Rung 13

// Address 73

STR Y1

OR Y2

OR Y3

SET S11 S11

// Rung 14

// Address 78

STRN Y1

ANDN Y2

ANDN Y3

RST S11 S11

// Rung 15

// Address 83

STR X1

LD K5

OUT V3000

// Rung 16

// Address 86

STRN X1

LD K999

OUT V3000

// Rung 17

// Address 89

STR X1

LD K5

OUT V3002

// Rung 18

// Address 92

STRN X1

LD K0

OUT V3002

// Rung 19

// Address 95

END

// Rung 20

// Address 96

NOP

#BEGIN ELEMENT_DOC

"UB ", "T8 ", " ", " "

"X0 ", "Acc Power ", " ", " "

"X1 ", "Inverter Fault ", " ", " "

"X2 ", "Inverter Low Vol ", " ", " "

"X3 ", "Inverter Ok ", " ", " "

"X4 ", "Cargo Lights Inp ", " ", " "

"X5 ", "Acc Over Sw ", " ", " "

"Y0 ", "Inverter Relay ", " ", " "

"Y1 ", "H/L Strobe Relay ", " ", " "

"Y2 ", "Dash Light Relay ", " ", " "

"Y3 ", "T/L Strobe Relay ", " ", " "

"Y4 ", "Radio Relay ", " ", " "

"Y5 ", "Cargo Lght Relay ", " ", " "

"S0 ", "Inverter On ", " ", " "

"S1 ", "H/L Strobe ", " ", " "

"S2 ", "Dash Light ", " ", " "

"S3 ", "T/L Strobe ", " ", " "

"S4 ", "Radio ", " ", " "

"S5 ", "Cargo Light ", " ", " "

"S6 ", "All Warning ", " ", " "

"S7 ", "Inverter 30 min ", " ", " "

"S10 ", "Inverter 1 Hour ", " ", " "

"S11 ", "Warning On ", " ", " "

"S12 ", "Radio 1 Hour ", " ", " "

"S13 ", "Radio 3 Hours ", " ", " "

"S15 ", "Cargo 10 Minutes ", " ", " "

"S16 ", "Acc Override ", " ", " "

"S20 ", "Timer Enable ", " ", " "

"S21 ", "Radio Tmr Enable ", " ", " "

"T3 ", "Cargo 10 Min Tmr ", " ", " "

"T4 ", "Radio 1 Hour Tmr ", " ", " "

"T6 ", "Radio 3 Hour Tmr ", " ", " "

"T10 ", "Invrt 30 Min Tmr ", " ", " "

"T12 ", "Invrt 1 Hr Tmr ", " ", " "

#END

Created Date: June 25,2007

Created by: milldrone

jamesjcooper,

I don't think it will make any difference in program size but we normally use "C " bits for internal relays and "S " bits for stages. I only say this because I don't see any stages.

On rung #5 you are using S12/ to start your timer. I cannot find any coil or bit setting logic to change it's state. When the PLC is first powered up any non retentive bits are cleared or off. So this bit would be off and your timer would start timing. Rung #6 has the same type of problems as rung #5. Rung #8 has the same type of problems as rung #5. Rung #10 has the same type of problems as rung #5. Rung #11 has the same type of problems as rung #5.

After further cogitating on this, one posiblity I didn't think about earlier would be this:. You are using this Plc as a slave or a master, and the bits ( "S ") are being changed in another plc. If this is true we also need this information.

Created Date: June 25,2007

Created by: jamesjcooper

Sorry if some things are not clear, I forgot I have the hardware in front of me. The S bits are being set by the touch panel, they are tied to momentary buttons on the screen that I would use to start the timer.

Thank you for the pointer on different memory bits, when I started this I wasn't sure what all the different memory types were, and I am still learning.

I can make some changes and have these as 'c ' bits, would that help from the timers restarting or just make the code make more sense.

I appreciate all your help.

Jim

Created Date: June 25,2007

Created by: milldrone

jamesjcooper ,

For the sake of this conversation I'm going to presume (this always gets me introuble) that the "S " address numbers will stay the same but now have a "C " prefix now. So you have a panel some where that is setting bits for you. Have you confirmed the the bits are being set? I'm going to presume at this moment that they are. Do you have any handshaking in place so the plc knows what to do if the panel is not communicating? I can't see any so I'm presuming no. I'm also presuming that you have not altered the retentive ranges in the plc. "S21 " was the highest "S " bit you used previously so I'm going to suggest you use "C22 ". Then you would turn on "C22 " "always " with the HMI. Now for the bad news. when I series "C22 " with every timers ' count rung I get 101 words. how important is the timer accuracy can 1 minute increments work? Can 15 second increments work? I might be able to work something out.

PS it looks like some of the logic in rung# 11 doesnt match up. You have your "inverter 30 min " resetting "inverter 1 hour "

Created Date: June 25,2007

Created by: milldrone

jamesjcooper,

I have rewritten your code. Exchanging the "S " bits for "C " bits and have made the word requirement (98). I think the reason your timers were counting up was that your hmi was not communicating at that time. I have also included "C22 " that you will have to configure in the HMI to always be on. As I mentioned before I'm presuming you have not modified the retentive ranges in the PLC. I'm curious about rungs 13 and 14. It seems to me that you would have access to Y1, Y2, Y3 in the HMI and you wouldn't need to set a bit (C11), and or reset it. This would give you a little more programming room if you needed more. BTW where I found some room was in your set/reset coils. If you only specify the first address slot it will still work. IE when you get the little window just type in the address once. If I were you I'd copy this into a new project so you don't loose anything.

PLC 05

// Rung 1

// Address 0

STR X5

SET C16

// Rung 2

// Address 2

STR C1

OR C6

STRN X0

OR C16

ANDSTR

OUT Y1

// Rung 3

// Address 8

STR C2

OR C6

STRN X0

OR C16

ANDSTR

OUT Y2

// Rung 4

// Address 14

STR C3

OR C6

STRN X0

OR C16

ANDSTR

OUT Y3

// Rung 5

// Address 20

STRN C12

AND C22

STR C12

TMRA T4 K3600000

// Rung 6

// Address 26

STRN C13

AND C22

STR C13

TMRA T6 K10800000

// Rung 7

// Address 32

STR C4

STRN T4

ORN T6

AND C21

ORSTR

OUT Y4

// Rung 8

// Address 38

STRN C15

AND C22

TMR T3 K6000

// Rung 9

// Address 43

STR C5

STRN X0

OR X5

OR C16

ANDSTR

STRN T3

AND C20

ORSTR

OR C15

OR X4

OUT Y5

// Rung 10

// Address 54

STRN C7

AND C22

STR C7

TMRA T10 K1800000

// Rung 11

// Address 60

STRN C10

AND C22

STR C10

TMRA T12 K3600000

// Rung 12

// Address 66

STRN T12

ORN T10

AND C20

STR C0

STRN X0

OR X5

OR C16

ANDSTR

ORSTR

ANDN X2

OUT Y0

// Rung 13

// Address 77

STR Y1

OR Y2

OR Y3

SET C11

// Rung 14

// Address 81

STRN Y1

ANDN Y2

ANDN Y3

RST C11

// Rung 15

// Address 85

STR X1

LD K5

OUT V3000

// Rung 16

// Address 88

STRN X1

LD K999

OUT V3000

// Rung 17

// Address 91

STR X1

LD K5

OUT V3002

// Rung 18

// Address 94

STRN X1

LD K0

OUT V3002

// Rung 19

// Address 97

END

// Rung 20

// Address 98

NOP

#BEGIN ELEMENT_DOC

"UB0 ", "T8 ", " ", " "

"X0 ", "Acc Power ", " ", " "

"X1 ", "Inverter Fault ", " ", " "

"X2 ", "Inverter Low Vol ", " ", " "

"X3 ", "Inverter Ok ", " ", " "

"X4 ", "Cargo Lights Inp ", " ", " "

"X5 ", "Acc Over Sw ", " ", " "

"Y0 ", "Inverter Relay ", " ", " "

"Y1 ", "H/L Strobe Relay ", " ", " "

"Y2 ", "Dash Light Relay ", " ", " "

"Y3 ", "T/L Strobe Relay ", " ", " "

"Y4 ", "Radio Relay ", " ", " "

"Y5 ", "Cargo Lght Relay ", " ", " "

"C0 ", " ", " ", "inverter on "

"C1 ", " ", " ", "h/l strobe "

"C2 ", " ", " ", "dash light "

"C3 ", " ", " ", "t/l strobe "

"C4 ", " ", " ", "radio "

"C5 ", " ", " ", "cargo light "

"C6 ", " ", " ", "all warning "

"C7 ", " ", " ", "inverter 30 min "

"C10 ", " ", " ", "inverter 1 hour "

"C11 ", " ", " ", "warning on "

"C12 ", " ", " ", "radio 1 hour "

"C13 ", " ", " ", "radio 3 hours "

"C15 ", " ", " ", "cargo 15 minutes "

"C16 ", " ", " ", "acc override "

"C20 ", " ", " ", "timer enable "

"C21 ", " ", " ", "radio timer enable "

"C22 ", " ", " ", "always on from hmi "

"S0 ", "Inverter On ", " ", " "

"S1 ", "H/L Strobe ", " ", " "

"S2 ", "Dash Light ", " ", " "

"S3 ", "T/L Strobe ", " ", " "

"S4 ", "Radio ", " ", " "

"S5 ", "Cargo Light ", " ", " "

"S6 ", "All Warning ", " ", " "

"S7 ", "Inverter 30 min ", " ", " "

"S10 ", "Inverter 1 Hour ", " ", " "

"S11 ", "Warning On ", " ", " "

"S12 ", "Radio 1 Hour ", " ", " "

"S13 ", "Radio 3 Hours ", " ", " "

"S15 ", "Cargo 10 Minutes ", " ", " "

"S16 ", "Acc Override ", " ", " "

"S20 ", "Timer Enable ", " ", " "

"S21 ", "Radio Tmr Enable ", " ", " "

"T3 ", "Cargo 10 Min Tmr ", " ", " "

"T4 ", "Radio 1 Hour Tmr ", " ", " "

"T6 ", "Radio 3 Hour Tmr ", " ", " "

"T10 ", "Invrt 30 Min Tmr ", " ", " "

"T12 ", "Invrt 1 Hr Tmr ", " ", " "

#END

Vaughn

PS My bad, if I had read your first post more carefully I would have seen you were using a Cmore.