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Generic communications on CP441

Created by: smiffy at: 8/6/2008 5:38 PM (4 Replies)

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8/6/2008 5:38 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 12/5/2024 Posts: 1548 Rating: (538)	You have in a previous post supplied me with the CP's and paremeterisation for point-to-point communication on a CP341. This was use ASCII mode and use P_SND_RK and P_RCV_RK functions. (see /tf/WW/en/Posts/20120#top) What is the equivalent for the CP441?
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
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8/7/2008 11:27 AM

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jklm

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Hello,
Here is the link.
http://support.automation.siemens.com/WW/view/en/27013524

V5.1 + SP8

Recommended for upgrading

But you will see that's the same configuration software for a lot of CPs
Here an extract of the link:

To be able to work with the CP PtP Param configuration desktop you require:

Approx. 55 Mbyte of additional space on your hard disk.
Other hardware prerequisites are described in the Product Information leaflet of STEP 7
The following modules are supported:
CP 340
CP 341
CP 440
CP 441-1
CP 441-2

Best regards
jklm

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8/7/2008 12:26 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 12/5/2024 Posts: 1548 Rating: (538)	That link is mostly concerned with adding the parameterising software into PCS7. I have already done this. What it does not tell me is what FB/FC's to use to perform PtP communications on the CP441. For example PtP communications on a CP341 use P_SND_RK and P_REC_RK. What are the CP441 equivalents?
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
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8/7/2008 2:06 PM	Rate (0)
jklm Platinum Member Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (309)	Hello, When you install the software, some sample projects are also added to STEP7. With File ==>Open ==> Samples Projects (instead of using the tab projects) CP340 / CP341 / CP440 / CP441 / example projects The names of the included example projects (zXX21_01_PtP_Com_CP34x, zXX21_02_PtP_Com_CP440, zXX21_03_PtP_Com_CP441) Each project has several PLCs with example programs. For CP440 and CP441, there is even an example with ASCII. During installation, a libary is also added With File ==> Open ==> Library You will see a library called CP PtP, with a subfolder for each CP For the CP440, you have 4 blocs (FB9, FB10, FB11) For the CP441, you have 2 FBs. During installation, all manuals of the CPs are installed in the folder \Program Files\Siemens\Step7\S7MANUAL\S7PtP_cp S7CP440b.pdf, chapter 6.1 tells which blocs are used.
	Best regards jklm Suggestion was helpful? Feel free to rate it.
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8/14/2008 3:50 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 12/5/2024 Posts: 1548 Rating: (538)	Thanks for that. But wouldn't it just be easier to tell me whatFC/FB to use? Also the examples are in STL (I use SCL). But I think I can muddle my way through it.
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Generic communications on CP441

Created by: smiffy at: 8/6/2008 5:38 PM (4 Replies)

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