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Micromaster 430 Profibus problem

Created by: Donflore at: 3/29/2008 9:57 PM (6 Replies)

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3/29/2008 9:57 PM	Rate (0)
Donflore Posts: 21 Rating: (0)	Hello guys, I have several MM430 connected on Profibus at a S7315-2DP (6ES7 315-2AG10-0AB0 V2.0) and i have a big problem starting the drive. The communication seems to work fine, I'm monitoring the drive with Starter and I see that the "control word 1" and "control word 2" are OK. So, i transfer a setpoint like 'W#16#2000" for 25Hz and I set control word 1 "047E", but when I send "047F" to start the drive the PLC and MM430 enters both in fault mode. In the diagnostic buffer of the PLC it's a message that says something about a RACK FAULT and on the MM430 it's F0070 which, i think, it's because that it losts communication with the PLC. I suspect that i have a little problem in my program but i can't find it. I use direct transfer function "L address" and "T address". So , I need any suggestion on my problem ... pls ...
Donflore Posts: 21 Rating: (0)
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3/29/2008 10:02 PM	Rate (0)
Donflore Posts: 21 Rating: (0)	I had tried to activate first the "bit 0" from control word 1 and after the "bit 1" from Status Word 1 it's on to activate "pulse enable" bit from CW1, but the same problem appears.
Donflore Posts: 21 Rating: (0)
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3/30/2008 1:12 PM	Rate (0)
Sydney Gold Member Joined: 1/4/2008 Last visit: 7/2/2025 Posts: 703 Rating: (98)	Hello, F0070 is triggered by A0702, A0703 or A0704 so check these alarm messages to know what is bad in setpoint or communication. You wrote that the CW is OK but first thing which comes to my mind is ifyou switch the bytesofCW in PLC. I hope you know about thebyte orientation of Simatic but it is common problem in any communication.

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3/30/2008 7:08 PM	Rate (0)
Donflore Posts: 21 Rating: (0)	Hi, I think the CW's are transfered corectly(I saw in STARTER), because i downloaded a simple program with just one drive and it was working. When i transfered back my original configuration (with 5 MM430) the same problem appeared. I don't know what to think ...
Donflore Posts: 21 Rating: (0)
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3/31/2008 1:51 PM	Rate (0)
Sydney Gold Member Joined: 1/4/2008 Last visit: 7/2/2025 Posts: 703 Rating: (98)	Hello, well if the controling is OK there should be some another problem, have you checked these A0702, A0703 or A0704 alarm messages?

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4/4/2008 5:46 PM	Rate (0)
miami Platinum Member Joined: 8/31/2005 Last visit: 9/12/2025 Posts: 2198 Rating: (331)	Hello, Did you permanently set bit 10?
	Last edited by: miami at: 4/4/2008 5:47 PM
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4/5/2008 12:10 PM	Rate (0)
uel123 Gold Member Joined: 1/29/2006 Last visit: 8/16/2025 Posts: 451 Rating: (65)	Donflore Hi, I think the CW's are transfered corectly(I saw in STARTER), because i downloaded a simple program with just one drive and it was working. When i transfered back my original configuration (with 5 MM430) the same problem appeared. I don't know what to think ... I think, you might have some other problem (with HW, connection,....) You should check the status of LED on PB interface on your MM; - green permanently: all OK! - green blinkink: master OK, but no cyclic data - other colors: NOT OK!; (see manual for PB card...) You should also check your HW configuration in STEP 7, PB addresses on MM,.... If communication works OK only untill you try to start MM through PB, then you should check, if MM430 is properly wired and connected (EMC !!!) You should also try tostart your MM localy and only check the communication through Profibus on your CPU or directly on MM, with use ofStarter or other tools.... By the way: how are you connectedwithStarter andMM? Through Profibus? Have fun!

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