Warm start

Hello everybody

I want an emergency help.

Having AC 700F freelance but i don't know how to make warm start not cold start???

Thnx for reading

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michael noshy Rank: 1609

Asked 3 years ago

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Hello,

There are two ways to warm start.

1. From hardware, for that press reset button just once less then 1-2 ms and controller will perform warm start.

2. From software, for that goto comissioning mode > in project tree Select AC 700F resource > right click goto header (or double click on resourse ) > there you can find warm start button > single click will perform warm start to controller.

Hope that helps...

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by michael noshy Rank: 1609 on 12/28/2015 11:09:57 PM | Like (0) | Report

Hello
First thnx for help
Swcond i want to make warm start automatic when the powe off then on inn order to keep the variable value as it...not to retain to zero

by Sumit Gargav AKS expert

Rank: 3 on 12/28/2015 11:13:16 PM | Like (1) | Report

Better you Install backup battery, SO if you have backup battery even there is power fail your values are retained.
Because if there is no backup battery and if there is power fail for more then 5 ml then controller performs forced cold start. no choice there. solution is to use backup battery.

by michael noshy Rank: 1609 on 12/28/2015 11:48:09 PM | Like (0) | Report

what i conclude that :1-there is'nt internal memory it's right ?
and what about use memory card to keep the value as it be for the power off -onn ?

by Sumit Gargav AKS expert

Rank: 3 on 12/29/2015 12:07:01 AM | Like (1) | Report

NO, It's all Internal memory only. the program and values get stored in internal memory. So if do not want to loose when power fail. use backup battery. Just check you have BATT triangular marker on controller LCD? If there is charged battery then BATT marker will be triangular else will be square.
External memory card do not store intermediate values. Memory card is storing program + firmware only...

by michael noshy Rank: 1609 on 12/29/2015 12:36:42 AM | Like (0) | Report

the backup battery is 3 V ?!it's like the coin shap? i change it
but when there is power fail the prog file remain
Or howa can i change the backup battery ?

by michael noshy Rank: 1609 on 12/29/2015 8:33:05 AM | Like (0) | Report

BATT is triangular... and the counter reset it's value

by Sumit Gargav AKS expert

Rank: 3 on 12/29/2015 7:01:50 PM | Like (1) | Report

Hello Michael,
Answer to above two comments.
Yes, right it's 3V, coin shape battery. And if you have BATT is static triangular marker in controller LCD means you have battery inserted and sufficiently charged. And even if power fails your program and values remained/saved.
Question about how you can change battery, no need as in your case it is showing sufficient battery. but in future if you want on PM 783F below LCD there is place for battery.
Now last one BATT is triangular but counter reset. which counter you are using ? is it counter value you are receiving via counter module/channel ? or you are using any binary counter function block in logic ? if so save those counter output values in some variable. and make sure counter is not connected to any reset variable which is getting initialized or set 1 when controller restarted.
Also if you double click on AC 700F resource in Project tree in configuration window you can find under resource behavior setting about
Max. power fail time for warm start
If the power fail time of the controller is above the configured value, the controller will boot with a cold start. If it is below or if no time is configured, the controller will boot with a warm start. Try that.
ou should be able to resolve issue.

by michael noshy Rank: 1609 on 12/30/2015 2:49:48 AM | Like (0) | Report

Hello Sumit
I'm using binary counter function block .
i already take the output (ctc) to real variable and don't connect any variable to reset or enable .
I put in Max. power fail time for warm start = T#5h and no action , it start with cold start and the power failing is 2 second ??
hind :
i'm using high copy battery 2.9v ..it may be the problem or not but the BATT is triangular shape in lcd controller

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Sumit Gargav AKS expert

Rank: 3

Answered 3 years ago

Answers

For one warm restart, you need to press the reset button just once.

if you

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csanchez411 AKS expert

Rank: 14

Answered 3 years ago

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