Niagara N4 BACnet Configuration

General
1

We have 200 BACnet devices on the same network number, each with a unique device ID but sharing the same IP. I need to distribute these devices across three JACE 8000 controllers, all using the same network number and IP to retrieve data from the field. If I add them directly using BACnet Discovery Manager on each JACE, will this lead to communication conflicts or issues?

The above is already implemented and getting below issue

“ SEVERE [01:14:13 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(4): Possible router loop, or duplicate network number 11

SEVERE [01:15:53 26-Mar-25 IST][fox] Failsafe timeout on read 436000ms > 60000ms

SEVERE [01:15:54 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(4): Possible router loop, or duplicate network number 11

SEVERE [01:18:31 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 8!!!

SEVERE [01:19:12 26-Mar-25 IST][fox] Failsafe timeout on read 64860ms > 60000ms

SEVERE [01:19:21 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (281ms) indicates possible router loop on network 10!!!

SEVERE [01:19:41 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 17!!!

SEVERE [01:20:30 26-Mar-25 IST][fox] Failsafe timeout on read 70219ms > 60000ms

SEVERE [01:20:29 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 1!!!

SEVERE [01:21:01 26-Mar-25 IST][fox] Failsafe timeout on read 71625ms > 60000ms

SEVERE [01:20:49 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (297ms) indicates possible router loop on network 2!!!

SEVERE [01:21:17 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 12!!!

SEVERE [01:21:30 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (297ms) indicates possible router loop on network 4!!!

SEVERE [01:21:30 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 3!!!

SEVERE [01:21:32 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 7!!!

WARNING [01:21:48 26-Mar-25 IST][bacnet.network] Possible network number mismatch: received network-number-is: "1", on port whose network number is "11"

WARNING [01:21:48 26-Mar-25 IST][bacnet.network] Possible network number mismatch: received network-number-is: "1", on port whose network number is "11"

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 8!!!

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 7!!!

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 4!!!

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 1001!!!

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 16!!!

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 1003!!!

SEVERE [01:21:49 26-Mar-25 IST][fox] Failsafe timeout on read 60656ms > 60000ms

SEVERE [01:21:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 9!!!

SEVERE [01:21:58 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 1004!!!

SEVERE [01:22:21 26-Mar-25 IST][fox] Failsafe timeout on read 78047ms > 60000ms

SEVERE [01:22:05 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(4): Possible router loop, or duplicate network number 11

SEVERE [01:22:50 26-Mar-25 IST][fox] Failsafe timeout on read 87750ms > 60000ms

SEVERE [01:22:52 26-Mar-25 IST][fox] Failsafe timeout on read 80891ms > 60000ms

SEVERE [01:22:52 26-Mar-25 IST][fox] Failsafe timeout on read 99813ms > 60000ms

SEVERE [01:22:50 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(4): Possible router loop, or duplicate network number 11

SEVERE [01:22:52 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 10!!!

SEVERE [01:22:52 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 1095!!!

SEVERE [01:22:52 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 1!!!

SEVERE [01:22:53 26-Mar-25 IST][fox] Failsafe timeout on read 86641ms > 60000ms

SEVERE [01:22:55 26-Mar-25 IST][fox] Failsafe timeout on read 67890ms > 60000ms

SEVERE [01:22:53 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 17!!!

SEVERE [01:23:15 26-Mar-25 IST][fox] Failsafe timeout on read 67360ms > 60000ms

SEVERE [01:23:28 26-Mar-25 IST][fox] Failsafe timeout on read 80907ms > 60000ms

SEVERE [01:23:18 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 12!!!

SEVERE [01:23:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 15!!!

SEVERE [01:23:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 3!!!

SEVERE [01:23:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (15ms) indicates possible router loop on network 14!!!

SEVERE [01:23:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 18!!!

SEVERE [01:24:08 26-Mar-25 IST][fox] Failsafe timeout on read 95813ms > 60000msSEVERE [01:23:48 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 6!!!

 

SEVERE [01:24:18 26-Mar-25 IST][fox] Failsafe timeout on read 81125ms > 60000ms

SEVERE [01:24:35 26-Mar-25 IST][fox] Failsafe timeout on read 61046ms > 60000ms

SEVERE [01:24:40 26-Mar-25 IST][fox] Failsafe timeout on read 104312ms > 60000ms

SEVERE [01:24:23 26-Mar-25 IST][bacnet.network] Bacnet Network Misconfiguration detected(3): Network number update frequency (0ms) indicates possible router loop on network 13!!!

SEVERE [01:25:34 26-Mar-25 IST][fox] Failsafe timeout on read 145656ms > 60000ms

SEVERE [01:25:59 26-Mar-25 IST][fox] Failsafe timeout on read 75500ms > 60000ms

SEVERE [01:26:33 26-Mar-25 IST][fox] Failsafe timeout on read 69391ms > 60000ms

SEVERE [01:27:35 26-Mar-25 IST][fox] Failsafe timeout on read 66813ms > 60000ms

SEVERE [01:29:32 26-Mar-25 IST][fox] Failsafe timeout on read 67109ms > 60000ms

SEVERE [01:31:06 26-Mar-25 IST][fox] Failsafe timeout on read 61860ms > 60000ms

SEVERE [01:32:43 26-Mar-25 IST][fox] Failsafe timeout on read 66641ms > 60000ms

SEVERE [01:34:12 26-Mar-25 IST][fox] Failsafe timeout on read 69282ms > 60000ms

SEVERE [01:35:23 26-Mar-25 IST][fox] Failsafe timeout on read 63422ms > 60000ms

SEVERE [01:36:58 26-Mar-25 IST][fox] Failsafe timeout on read 60141ms > 60000ms

SEVERE [01:38:54 26-Mar-25 IST][fox] Failsafe timeout on read 69203ms > 60000ms

SEVERE [01:40:11 26-Mar-25 IST][fox] Failsafe timeout on read 97063ms > 60000ms

SEVERE [01:41:36 26-Mar-25 IST][fox] Failsafe timeout on read 103250ms > 60000ms

SEVERE [01:46:17 26-Mar-25 IST][fox] Failsafe timeout on read 102125ms > 60000ms

SEVERE [02:01:03 26-Mar-25 IST][fox] Failsafe timeout on read 234953ms > 60000ms

SEVERE [02:07:25 26-Mar-25 IST][fox] Failsafe timeout on read 1059485ms > 60000ms”
1 Like
2

Something does not add up here… so these are BACnet devices all with the same IP. Do you mean all on the same IP range?

3

Yes, we are integrating the LMS here. I believe they have a bacnet gateway connected to BACnet devices.

4

I assume routing is enabled on all three JACEs. Are there other MS/TP devices or only these IP devices? Seeing network numbers leads to believe that’s the case.

If the JACEs are on the same network and not across different subnets. This could be easy. But that many IP devices is tough to discover.

5

There are no bacnet matp devices.

6

Here’s a document I made a while back with some basic BACnet rules.
2024-08-12BACnetNetworks.pdf (114.8 KB)

7

Sounds like spanning tree protocol stuff, but with two different protocols? I can’t remember all the Cisco protocols, but kind of cool to have reduntant paths automatically managed in case one goes down, but not contributing to loops?

1 Like