CI854B and CI840A - Profibus DP with High integrity controller
Is it allowed to use CI854B and CI840A combination for IO cabinet communication in High integrity system (PM867 with SM812), 800xA 6.1 ? When I tried to add HI modules like AI880,DI880 etc..it is not available in profibus hardware library. Does that mean only optical module bus(TB840A) is the re commented option for HI configuration ?
I have a requirement to control a few position controllers from Safety system (ESD) - Analogue output. As far as I know there is no safety certified AO module available. How to handle this requirement ? Go for non sil IO modules like AO845A ?
Safety modules supported on controller optical module bus and electrical module module bus only. Safety IOs are not supported over profibus. This is for S800 IOs. I think we dont have safety certified AO modules.
AC800M HI is able to handle both SIL and Non-SIL applications, so it depends on Standards and Guidelines in your application. Regarding the IO, Hardware Editor would already limit the Topology you can use in SIL Hardware. There is no option in AC800M HI + S800 HI through Profibus-DP. You need to use Optical Modulebus instead. For S800 there is no SIL AO board, but if you need any Loop on SIL application you can offer SelectIO in addition. By using SelectIO you can extend the option for ProfiNETIO communication and keep in a SIL application. Take a look at AC800M HI Safety Manual and Appendix (3BNP004865) for further information. Regards.