Title-Fluid Mixer is updating but not Processing

We are using aFluidMixer which updates its Recipe table by fetching values from a Globaltable (named “Major_RM_Table”). The fetching of values is programmed to happenaccording to a specific sequence, which is fetched from another Global table(named “ProductionMixSeq1”). The number of times the table is to be updatedwith certain set of values is calculated from values in a third Global Table(named “ProductionPlan”).

Our objective is todynamically update the mixing proportions of a FluidMixer (having 6 inputs)according to a specific plan. Given below is the sequence of events.

1. Mixer refers a global table named“ProductionMixSeq1” and fetches the Number_ID of product to be mixed.“ProductionMixSeq1” has rows representing Shifts (each lasting 12 hours) andcolumns just containing Number_IDs of products being mixed in that shift.

2. The Mixer next refers global table named“ProductionPlan” which contains the target quantity of production. This globaltable has rows representing shifts and columns representing the Number_ID ofproduct to be mixed.

3. The target is fetched from the table and thevalue is divided by 1500 to get the number of times the recipe table of mixeris to be updated.

4. The Mixer then refers global table named“Major_RM_Table” which contains the values to be updated in the recipe table ofMixer. The values are copied from the table and pasted on the recipe table.

5. The mixer recipe table is to be updated every15 mins. (Processing time of Mixer: 15 mins)

6. The Mixer is updated only the number of timescalculated and after that the mixer stops getting any input for the rest ofthat Shift. It starts updating only after the next shift starts.

Our problem is thatthe recipe table is being updated and the mixer is processing properly for 5shifts, after which the table is getting updated and but the mixer is notprocessing the pulled input. There is no output coming from the Mixer.

Please help us out.

I have taken a short look at your model and what I see at 2880 that through inputport 4 only 50.22 comes in while 56.58 should come in (see variable node: currentsteptable).

But I have no idea why it does that. maybe you did something wrong or there is an order problem. You could try setting the table a bit earlier or something. Other wise logon to your account on the website and ask Flexsim support.

One other thing, in your onmessage trigger you have this code:
int mss=msgparam(1); // for batch wise
int mst=msgparam(1);

So both integers get the same value and I don't know if that is correct?

Hi,

you can update the recipetable before a new cycle through the steps starts. Therefore you use the Empty Trigger. It is a last event of the previous cycle. If you update the table while a cycle is working, you mix the system events calculated at the beginning of all steps and events that are created at the single steps. That might work, possibly your model won't run as expected.

Jörg