S7-300 PLC in stop using PQW or PIW

mulderm · Jan 27, 2013

Hello,

I have a CPU 315-2dp plc using for profibus communication with the SEW Movidrive MDX61B inverter.
In the hardware configuration I have fill in the adresses for
communication Input: 264 and Output 264.
When I program example L 1500 T POW 266 in a network and I
download this to the plc the plc are going in stop!
By the diagnostics I see I/O access error.
But I don't know what the fault is.
Profibus communication is working good (led is of on the DFP21B).
Any idea?

Greetings,

mulderm

moggie · Jan 27, 2013

mulderm said:
Hello,

Profibus communication is working good (led is of on the DFP21B).

mulderm

Can you monitor the PIW values in a VAT?
Please check that the green LED is on and the red LED is off ?
Are the dip switches set correctly for the profibus interface?

PeterW · Jan 27, 2013

Shouldn't the start address be a multiple of 16.

mulderm · Jan 27, 2013

Hello guys,

Yes everything is correct.
I can't also see the PIW in the vat-tabel.
Also changing the address (see attachment) but no result.
What can it be?

Greetings,

mulderm

JRW · Jan 27, 2013

Your in the process image area. Try iw and qw. Not piw pqw

KalleOlsen · Jan 27, 2013

mulderm said:
Hello guys,

Yes everything is correct.
I can't also see the PIW in the vat-tabel.
Also changing the address (see attachment) but no result.
What can it be?

Greetings,

mulderm

What about the consistency? If it is by total area, you will have to use DP_READ/DP_WRITE to access the PIW/PQW.

But since you now have moved the IO to the process image area, it should work as JRW says.

Kalle

L D[AR2P#0.0] · Jan 27, 2013

What module diagnostics are shown when online in the h/w config editor?

mulderm · Jan 27, 2013

JRW,

I tried QW and IW but nothings changes!
No values to the inverter!
Vat-tabel is now working well.
DP_READ/DP_WRITE can't used (SFC14 en SFC15)
because the cpu 315-2af03 IS TO OLD.

mulderm · Jan 27, 2013

Module is ok.

JRW · Jan 27, 2013

I don't know sew. I would assume you have to map data out of the drive ?
Can you see any receive data in the drive? Using the drive software?

TurpoUrpo · Jan 27, 2013

How is sew drive configured in hw config? i smell need for sfc 14&15.

Yes. You need to use sfc 14&15. PDF shows your config.

JRW · Jan 27, 2013

For a test
Change your telegram to 2 words of send and receive

From another post of yours I believe your using an old CPU?

Lets test Turbourpo's response

moggie · Jan 27, 2013

TurpoUrpo said:
How is sew drive configured in hw config? i smell need for sfc 14&15.
.

Look at attached to see if SFC 14/15 is needed,

JRW · Jan 27, 2013

I missed post 8

A 2af03 CPU did use sfc14 and 15

What error are you getting when you use it?

Did you "see" data with 2 words of send and receive ?

mulderm · Jan 27, 2013

Guys thank you!
It works with 2PD.
But I want to use Par + 10 PD!!!
So I must get another cpu?

mulderm

S7-300 PLC in stop using PQW or PIW

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