Distributed safety

Hi Rob,

The OB35 is biting hisself in his tale....

The time that is used in OB35 is too high, so place OB35 on another timingrate, have you placed it on a faster call (standard is 100mS)?

If you change the OB35 time, then please check also your F-CALL for the timing.

Dear Robert,

In the Diagnostic Buffer is placed that the Failsafe program needs 126mS !!

So there might be too much time-consuming program or it is needed.

So you can place the time for OB35 on 150mS and also edit your F-CALL to some longer time.

Another possibility is that I look briefly to your Failsafe Program.

Dear Robert,

I have downloaded your failsafe program, first off all I want to say that you are programming very well, there might be some more text to it, but I have seen it a lot worser.

Here are the results of the Jury...

First off all I have to switch to Polish with Windows..

Hardware Configuration.
You may give the modules the names you want..., so you could recognise them better true the failsafe program.

Station VTP1 6 * 8 = 48 F-DI
Station VTP2 4 * 8 = 24 F-DI + 4 * 4 = 16 F-DO
Station PA1 2 * 8 = 16 F-DI + 1 * 4 = 4 F-DO
Station PA2 2 * 8 = 16 F-DI + 1 * 4 = 4 F-DO
Station PA3 2 * 8 = 16 F-DI + 1 * 4 = 4 F-DO
Station PA4 2 * 8 = 16 F-DI + 1 * 4 = 4 F-DO
Station PA5 2 * 8 = 16 F-DI + 1 * 4 = 4 F-DO
Total 152 F-DI + 36 F-DO

It is not a small configuration and there is alot of Failsafe software, so the compiling is ok, but the program is to long for OB35.

You have not parametrize the channel pasivation, but the hole module!
This is less time consuming but could be not wanted.

See ID 21627074 for a excel-sheet where you can calculate precisely how many time is used/needed for the safety program. With the I/O and some blocks filled in in his spreadsheet I see that you need more then 100mS!!

So you have to call the OB35not that soon, but about 150mS, please consider all times on the F-I/O when you change this, this time have to be at least 2 * Time OB35. It could be maybe interesting to call two RTG, whereby the RTG are on different times, but you have to keep then multiplies of the OB35 calls.

When this time is to long, you need a faster F-CPU, for example the CPU317F which is almost 2 times so fast as the CPU315F with the failsafe software (see the excelsheet when you have filled in the data).

FB1000 network 1 All the standard inputs may placed in OB35 in the standard program on a Merker and that Merker may read out instead the big OR i this network. Also the positive edge can be written in the standard program right before the F-CALL in OB35. As far I have seen this is the only program that might be transfered to the standard OB35, so thats bringing a little bit time.

FB1000 network 28 may soon be done by FB219 Reintegrate RTG, this will come with SP3 of DS V5.4, I was one of the lucky ones that havedownloaded SP2 before it was blocked and there is FB219 in, how many time that FB219 will consume I don't know. But the reintegration of all the modules must be done by the F_ACK_OP when it is coming from a panel. So with FB219 you may reintegrate all F-I/O off a Run Time Group.

Please give the datablocks for the instance DBs called in FB999 also names (symbolik).