Siemens ASi

Well... hello sailors!

I have a Siemens S7-315-2DP with two CP 342-2 ASi modules.
The PLC controls a warehouse conveyor system with 4I4O ASi nodes.
I wish to monitor the in/outs of the ASi nodes.
In the HW Config it states the I/Q addresses as 276...291.
In FC2 //Read Asi network is the following;

L PID 276
T DB1.DBD 0
L PID 280
T DB1.DBD 4
L PID 284
T DB1.DBD 8
L PID 288
T DB1.DBD 12

How would I view the inputs from this block, please?

At the bottom of my STEP7 screen is a tabbed screen with [4: Address info.] in which PID276, PID280, PID284 and PID288 are listed with a BIN @Status value column showing;

2#0000_0000_0000_0000_0000_0000_0000_0000

Can the bits be monitored here?

Thanks in advance -silva.foxx

Hi

I have set up PLCSIM and brought up a bit box for IB276.
When I trigger the bits I can see 2#0000_0000_.... change accordingly.

Is this the only way to monitor?

I would have thought that you could monitor the inputs directly.

PID276 = IB276 to 279, so I 276.0 should be accessable in VAT tables etc.

The inputs are placed into DB's, are the inputs used in the logic or the data bits created??

Usually I would monitor in the code

I think the easy way to do it is - set the Asi I/O addresses in the process image table range.

So set the I/O address to say 80 (providing your not using this of course)
Now you can read and write to say I80.3 and you will not have to move all this data to DB's

I hope this makes sense

You could create a VAT table in your project to monitor the bits in the DB since you are mapping the IO to that location i.e. DB10.DBX0.0 then to make it easy highlight the entry and then go to the Menu item INSERT and select RANGE of Variables and say 64 or however many you want to look at.... Hope that helps.