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2/2/2010 3:51 PM | |
Joined: 7/2/2008 Last visit: 7/2/2024 Posts: 928 Rating: (306) |
Hello G. S. Ratti,
Although the IF964-DP can have 125 slaves, still the maximum number of slaves you can have for IF964 is CPU dependent. So, for CPU414-3PN/DP you can have up to 96 slaves for the IF964-DP (Check 3rd interfacein technical data). However, the same module can be usedin CPU 416-3PN/DP with 125 slaves connected (Check 3rd interface in technical data).
You can use the 1st interface (MPI/DP) as a DP Master but it's limited to 32 slaves. I just want to bring your attention to the maximum address area of each interface. Yes, the IF964-DP can support to 96 slaves in your CPUBUT with maximum address area of 6000 input bytes and 6000 output bytes. I don't know what kind of slaves you have and how dense they are in terms of I/O bytes but assumingan average of 100 input bytes per slave, you won't be able to have more than 60 slaves (6000/100). In a word, I just want you to check the address area you have since you areconnecting96 slavesto a single interface. If you find (for any reason) that you need another DP master, then your only choice will be CP443-5 Extended. Best regards. H-H |
2/3/2010 4:12 AM | |
Posts: 6 Rating: (0) |
Thanks, |
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