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CPU 314 + CP 342-5 range of PQW

Created by: aante at: 9/19/2008 8:42 AM (10 Replies)

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9/19/2008 8:42 AM	Rate (0)
aante Posts: 55 Rating: (0)	Hi! I have configuration with cpu 314 and cp 342-5 as slave plc. Now i have to send some words to PQW adresses of plc. In HW configuration starting adress od 342-5 is 256 but lenght is automaticali set to 16 (i sugest words?) and i have 30 words to send. How can I set adress range to fit that words i have to send? Many thanx in advance!
aante Posts: 55 Rating: (0)
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9/19/2008 8:56 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/3/2024 Posts: 8777 Rating: (1172)	Dear aante, The amount of data will be projected in Master. You can send and receive data using FC1 DP_send and FC2 DP_Recv. See following link: http://support.automation.siemens.com/WW/view/en/21628604 And perhaps this link is useful: http://support.automation.siemens.com/WW/view/en/15007089 Best regards, Wizard

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9/19/2008 9:08 AM	Rate (0)
aante Posts: 55 Rating: (0)	Hi! But there is a problem :( i must send words from datablock (shared DB) to PQW range using only MOVE block (load-transfer)..... to be compatibile with another company that is programming other side (master plc) of communication...
aante Posts: 55 Rating: (0)
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9/19/2008 9:15 AM	Rate (0)
playerslight Posts: 1064 Rating: (72)	http://support.automation.siemens.com/WW/view/en/1158693 Check out the manual fo rthe cp 342-5 card it will tell you how to set it up ,the data word size is set up in the FC DP_SEND, FC DP_RECV up to 2000 bytes which is with in your range
playerslight Posts: 1064 Rating: (72)
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9/19/2008 9:16 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/3/2024 Posts: 8777 Rating: (1172)	Dear aante, Well I guess the master CPU has an integrated Profibus Here is a link about differences between integrated Profibus and CP342-5: http://support.automation.siemens.com/WW/view/en/21628388 http://support.automation.siemens.com/WW/view/en/689920 When you have integrated Profibus, you can use MOVE a range of DW-words to PQW. But when you use CP342-5 you mustuse FC1 and FC2 So there is no possibility, you can do the same as master CPU. (if you wish, you should use CPU with integrated profibus) Best regards, Wizard

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9/19/2008 9:27 AM	Rate (0)
aante Posts: 55 Rating: (0)	yes wizard, the other side is cpu 315-2dp.... if i use fc1 and fc2 on my side, can master side use just move?
aante Posts: 55 Rating: (0)
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9/19/2008 9:45 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/3/2024 Posts: 8777 Rating: (1172)	Dear aante, It's no problem. The other side can use MOVE instruction Here I found an example: http://support.automation.siemens.com/WW/view/en/6518938 Unfortunately it's the other way around. CP342-5 is master and CPU is slave. But perhaps it's useful Best regards, Wizard

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9/19/2008 9:50 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/3/2024 Posts: 8777 Rating: (1172)	Dear aante, YES, I found another example: http://support.automation.siemens.com/WW/view/en/6519580 CP342-5 is slave and master is CPU. Best regards, Wizard

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9/19/2008 10:05 AM	Rate (0)
aante Posts: 55 Rating: (0)	wizard thank you very much! you make me clear about some things if i have some other questions i will feel free to ask thanx again
aante Posts: 55 Rating: (0)
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9/19/2008 11:57 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/3/2024 Posts: 8777 Rating: (1172)	You are welcome I'm glad I could help. Best regards, Wizard

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