MB300 communication with CI855 and AC800M

I have a problem with CI855 card and communications with AC450. I have configured the MB300 network numbers and node numbers correctily (I think). I can see the AC800M node number from 800xA in the RTA board system status screen. I see all the values sended from the AC450 in the AC800M with zero values, but I am not sure that the DS Send from the AC450 is being received in the AC800M because I see the VALID param as 0, so it seems that the DS is not being sended. Somebody can help me to solve this issue?
Thanks

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lmartinez Rank: 284

Asked 1 year ago

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Your node numbers seem to be wrong. The AC450 is sending to node 5. The AC800M is node 8.

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Rob Lyon Rank: 2

Answered 1 year ago

Hi,
In addition to Rob's answer - look the manual AC800M Communication Protocols 3BSE035982-510:

"The CIPos parameter specifies the position number of the CI855 unit in the hardware tree (identical to its position on the CEX bus). CAPos specifies the MB 300 network number, and NodePos the node position of the controller on the network."

I think you have wrong CAPos and Nodepos in MB300Connect block - there you should put the valid data for AS450 node's settings. Also look the settings of your CI855 in HW configuration - here you set network and node number for CI855. it has to be in the same network (11) with AC450 but with the unique node number. Also check MB300 protocol type and other settings.

In order to test your received data, in Online mode try to set Rd parameter of Receive block to a different value. In case it is overwritten by the other value, then the received values are coming from MB300 node.

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by lmartinez Rank: 284 on 7/5/2018 1:50:03 PM | Like (0) | Report

Thank you kstollov. I have only the CI855 card in the CEX bus, so the CAPos is 1. The network number is 11 with the 12 network as redundant kn MB300. AC450 node number is 8 and CI855 node number is 5. I see both nodes from 800xA MB300 status screen as ok (green) both nodes. In the protocol settings I have MB300, I have tried to configure other options in the protocol in AC450 node and I receive in the MBConnect function an error -7540.
I suspect the the problem is in the DS configured in the AC450, because the VALID output is allways 0. I have tested if the DATs sended in this DS are the same in both sides (4 ILs and 20 Reals).
I have tried to put the DS in the AC450 Active and Inactive, ACT=1 after ACT=0 and again ACT=1. Allways I see the VALID terminal as 0. Tomorrow I will make a reset in the AC450 node because these DSs have been added online and perhaps I need a reset of the AC450 node. I don´t know what more tests to do.

by kstoilov AKS expert

Rank: 5 on 7/5/2018 11:39:23 PM | Like (0) | Report

Hi,
If you think you have established a communication between AC800M and AC450, in Online mode try to set some Rd parameter of Receive block in AC800M to a different value. It should be overwritten, even with 0, in case your DS is not filled correctly, but the communication is running

by kstoilov AKS expert

Rank: 5 on 7/5/2018 11:41:37 PM | Like (0) | Report

Do you have NDR output of Receive block = 1 periodically? I can see the status=1 which mean reading is OK

by Stefan Stromqvist AKS expert

Rank: 1 on 7/5/2018 11:42:56 PM | Like (0) | Report

Yes, check AC450 side too. It must match.

Check if any system message is output when starting the AC450 (DICONFIG from being in ECONFIG state) - I believe CXAA000 is the DS task. If you see any message, try decoding it with the users manuals, or post entire message here.

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kstoilov

Rank: 5

Answered 1 year ago

Source: 3BSE035982-510

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MB300 communication with CI855 and AC800M

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