[?]: s7 300 cpu + Y-Link = hot redundancy ?

[greyhame]

hi all,

has anyone tried using the s7 300 series cpu with the Y-Link for making a hot stanby system.

any inputs for the same will be appreciated.

thanks

[PLC_ITA]

hi, i usually use a cpu 300 with redundancy sw, and im153-2 and other.
Post your configuration hw to understand your problem and if possible, explain better your question

bye

[Umencho]

http://support.automation.siemens.com/W ... en/1137637
There are 2 types of redundancy used. One is software redundancy and the other is hardware redundancy. Hardware redundancy is for S7-400 and can use together with Y-link. Software redundancy can be for S7-400/S7-300. Although the above mentioned manual of SWR never mention about can or cannot use Y-link but from my experience cannot. Siemens doesn't recommend it. Instead need to use repeaters.
One interseting discussion concerning the same issue - https://www.automation.siemens.com/foru ... ageIndex=1

Best regards

[mane]

Tty this: http://www.comsoft.de/html/icpe/profibus/switch/prs.htm