3/25/2011 1:17 PM | |
Joined: 9/27/2006 Last visit: 10/3/2024 Posts: 12283 Rating: (2685) |
Hello Anshul; In the following links you will be able to download the Module Data manuals for the S7-300 and the S7-400 family of CPUs. This would be the best way to start your research: S7-300 Module Data manual: http://support.automation.siemens.com/WW/view/en/8859629 S7-400 Module Data manual: http://support.automation.siemens.com/WW/view/en/1117740 You will find technical data. wiring diagrams and other information on all digital and analog modules available for both series. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 3/25/2011 1:18 PM |
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5/27/2011 5:15 AM | |
Joined: 1/28/2009 Last visit: 9/10/2024 Posts: 6849 Rating: (1365) |
Also check this:what s benefit of using s7 400 IO cards instead of s7 300 IO cards?regards |
5/27/2011 10:06 PM | |
Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating: (308) |
Hello Everyone, I just would like to addfew things to what Krishhas already said. It's not always about allocation of I/Os but sometimes it's about the feature that you can take from each type. 1- S7-400 I/O modules are by default hot swappable. 2- ET200M (S7-300) modules require active bus units (extra cost and configuration) to support hot swapping. 3- ET200S modules are by default hot swappable. 4- The ET200S is unique in combining motor starters and drives up to 7.5 KW with I/O modules. This is one of the best features of ET200S. Quite space saving, quite less wiring and for sure less engineering. 5- ET200S modules may not require terminal blocks since their terminals are quite clear and obvious. This is because of its very limited I/O count per module (max. 8 signals). This is not the same withS7-400 modules and ET200M where you should always use terminal blocks sincetheir front connectors are very hard toact as service points. Best regards. H-H |
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