Witch bloc function to use with S800 and infi90?

we are trying to Add remote IO to our infi90 DCS with symphony plus using BRC410 framework M. we think to use IOR800 in a star configuration connected to TB825 modules and to TB820 and IO modules.
my question is witch block function to use in the BRC410 configuration to use to use the remote IO ?

Thank you

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helios.labdi Rank: 1862

Asked 10 days ago

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Hi,
To successfully implement the S800 IO in a BRC you will need the following function codes...
FC227 - To define a gateway to the S800 IO subsystem.
FC228 - To define each of the IO modules in the S800 IO subsystem.
FC221/222/223/224/225/229 - To define each of the channels in the IO module defined by each of the FC228.

Probably best to refer to the following documentation. I have only included the IOR810 reference as the IOR800 is superseded.

2VAA002595 - IOR810 Gateway User Manual. There is a section on configuration that deals with the function code requirements and configuration of the S800 I/O subsystem.
2VAA000844 - S+ Engineering Function code reference user manual. This may have a more detailed explanation of the function code specifications.

There are also templates in Composer / S+ Engineering for the IO modules. This should get you started for the device and channel definition.

Regards,
Alan

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by helios.labdi Rank: 1862 on 10/9/2019 1:21:54 AM | Like (0) | Report

many thanks for your clear answer , i still have a concern on the time that take the information from the S800 IO ( FC221,222....) to FC228 to FC227 specially if we have a star configuration and in each branche we have 3 TB20 in witch connect to 6 IO modules in each branch is it possible to have a response time less than 250 ms ?

Thank you

by Alan Rank: 30 on 10/10/2019 1:16:33 AM | Like (0) | Report

Hi,
I was going to suggest that you repost as a question as the comments don't have a lot of visibility. I don't know of any published data for IOR throughput. There is some information on modulebus and AC800M controllers but I have no idea how this translates to an IOR as the modulebus master device.

3BSE041434, System 800xA Technical Data and Configuration System Guide, Section 5.3 talks about modulebus scan time for AC800M controllers but I don't know if or how this applies to the IOR.

There is a discussion of transmission delay in 3BSE020923, S800 I/O Getting Started, Section 3, Calculation of Maximum Optical ModuleBus Configuration but this doesn't help directly. The propogation delay applies to each message, so message size is obviously important in determining the impact of fibre length on communications.

The other thing to note is that the S800 IO communication (IOR<->S800) occurs asynchronously to the function code logic execution (BRC<->IOR).
Regards,
Alan

by Alan Rank: 30 on 10/13/2019 8:05:01 PM | Like (0) | Report

Hi,
Apologies and to clarify, the FC221 mentioned in my answer is not part of the S800 IO subsystem being just for Block IO. I thought I had corrected this after posting the answer initially but am obviously mistaken.
Regards,
Alan

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Alan Rank: 30

Answered 9 days ago

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Witch bloc function to use with S800 and infi90?

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