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sync module

Created by: muffi at: 7/13/2013 9:10 PM (12 Replies)

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7/13/2013 9:10 PM	Rate (0)
muffi Posts: 95 Rating: (10)	hi what is sync module ?
muffi Posts: 95 Rating: (10)	Last edited by: muffi at: 7/13/2013 9:24 PM
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7/13/2013 9:29 PM	Rate (0)
Ashutosh Kr Bronze Member Joined: 3/15/2011 Last visit: 4/23/2025 Posts: 134 Rating: (9)	the communication between two S7400 H system is accomplished through FOC cable via sink module.this helps in internal syncronisation and communication of 400 system regards Ashutosh

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7/13/2013 9:47 PM	Rate (0)
AMAZINGAHMED Gold Member Joined: 8/27/2006 Last visit: 10/22/2024 Posts: 719 Rating: (88)	muffi hi what is sync module ? Check this thread, it's very interesting Synchronization module for S7 417
	The more you know, The more you know that you don't know
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7/14/2013 4:22 AM	Rate (0)
BhaPraJ Silver Member Joined: 1/28/2012 Last visit: 7/23/2024 Posts: 519 Rating: (83)	muffi hiwhat is sync module ? It is the one of the most imprortant part of H System. . The 2 CPUs communicates through sync modules. . As name itself said, The continous SYNChrounous data transfer is done without interrupt by using sync module. .
	Regards, BhaPraJ
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7/14/2013 6:43 AM	Rate (0)
muffi Posts: 95 Rating: (10)	hi Pranav J. Bhagat it's mean it is just in s7 400H series ?
muffi Posts: 95 Rating: (10)
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7/14/2013 6:53 AM	Rate (0)
Ayman Elotaify Platinum Member Joined: 5/28/2008 Last visit: 9/3/2025 Posts: 4522 Rating: (843)	muffi hi Pranav J. Bhagat it's mean it is just in s7 400H series ? Yes. For S7-400H you need 2 Sync modules for each CPU ( 4 for both CPUs). A didicated two places for Sync. modules is prepared in all CPU4x-H for Sync modules. It's a plugin modules. In other controller families no need for it. Hope this helps.
	Ayman Elotaify
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This contribution was helpful to 1 thankful Users BhaPraJ

7/14/2013 7:15 AM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 9/15/2025 Posts: 6875 Rating: (1368)	That may you find by a simple search, but explains why we should have all 4 synchronization module intact for full redundant operation: Sync Modules in H CPU dmertens The redundancy synchronisation needs more bandwidth than one FO connection can provide, therefor there are 2 connections, this is in no way a redundant connection, if one of the two FO connections is interrupted the backup PLC will go to STOP. Hope this helps, David
	Demo Channel on Youtube
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7/14/2013 8:34 AM	Rate (0)
N. Vijay Silver Member Joined: 3/17/2013 Last visit: 4/28/2025 Posts: 481 Rating: (43)	No, synchronization is a valid term even with S5 948 series redundant CPUs. Regards, Vijay

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7/14/2013 8:36 AM	Rate (0)
N. Vijay Silver Member Joined: 3/17/2013 Last visit: 4/28/2025 Posts: 481 Rating: (43)	In additon to the comments, SYNC modules also take care of any program modications (in case to be done on requirement) from the other CPU automatically. I mean you need to download program in one CPU only and for the II CPU it is auto synchronized. Regards. Vijay

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7/14/2013 1:30 PM	Rate (0)
Amit_86 Platinum Member Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating: (272)	muffi hi what is sync module ? Hello, The redundant system requires four synchronization modules of the same type. Function of the synchronization modules Synchronization modules are used for the communication between two redundant S7-400H CPUs. You require two synchronization modules per CPU. Connect these in pairs using fiber--optic cables. The system supports hot--swapping of synchronization modules, and thus allows you to influence the repair reaction of the redundant system and to control the failure of the redundant connection without stopping the plant. · Distance between the S7-400H CPUs Two types of synchronization modules are available: Order Number Maximum distance between the CPUs · 6ES7960-1AA04-0XA0 10 m · 6ES7960-1AB04-0XA0 10 km Long synchronization cables may increase cycle times up to 10% per cable kilometer.
	VANDE MATARAM.....
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7/14/2013 2:07 PM
muffi Posts: 95 Rating: (10)	thank hdhosseini what is FO?
muffi Posts: 95 Rating: (10)
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7/14/2013 2:19 PM
Amit_86 Platinum Member Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating: (272)	muffi thank hdhosseini what is FO? FO means Fiber optics cable.
	VANDE MATARAM.....
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12/31/2017 10:43 AM	Rate (0)
CS Moderator Moderator Joined: 9/1/2005 Last visit: 8/22/2025 Posts: 4114 Rating: (195)	New question published by AutoGen_3994774 is split to a separate thread with the subject S7-400H system: Sync modules in long distance. Best regards CS Moderator
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards CS Moderator
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