AC400 system alarms

Hi Experts,
system alarms coming from an AC450 controller become active and inactive at the same moment in 800xA 6.0, even though the failure persists. As a result, an alarm disappears from the system alarm list after acknowledgment. On the other hand, system alarms related to 800xA or AC800M controllers remain acknowledged in the system alarm list as long as the alarm condition is active. Is it possible to have the same behaviour for AC400 system alarms?

Thanks for answer

Adam

 AC400 system alarm.png


Add New Comment


apz   

asked 4 days ago
Closed



Best Answer

2

Due to the nature of Advant Controller 400 system messages, these "alarms" are in fact stateless events distributed on MB300 to all members of the Master View Table.

In 800xA there is a feature called System Alarms with which you can convert stateless events into alarms (still stateless).

The conversion of stateless event into alarm comes with a drawback, the alarm is either "Inactive on creation" *OR* "Inactive on acknowledge"

E.g. if you look at the more simple MB300 "node down" and "node up" messages seen in RTA Board Maintenance and OnLine Builder, they become stateless alarms that "evaporates" on acknowledge, even though the state (node down) is still present. The "node up" is equally strange, why "alarm" on something positive...

This all boils down to the stateless delivery of AC400 system events to RTA and HMI and the drawbacks of converting them into alarms.

There has not been a business case (or even a possibility) to have the MB300 OPC AE server to collect and remember these states up to date. Please speak with your regional ABB sales representative about future enhancements.

Stefan Stromqvist   

answered 4 days ago


 


By apz on 4/17/2018 | Like (0) | Report

Thank you for an exhaustive explanation.


Add New Comment


Answers

0

The AC400 system alarms should have the same behavior as others. Please check the "Event Details" of both lines. Seems to me that you get two different messages the same time. Do you have a redundant Connectivity Server?

/Erik

erik   

answered 4 days ago


 


Add New Comment


2

Due to the nature of Advant Controller 400 system messages, these "alarms" are in fact stateless events distributed on MB300 to all members of the Master View Table.

In 800xA there is a feature called System Alarms with which you can convert stateless events into alarms (still stateless).

The conversion of stateless event into alarm comes with a drawback, the alarm is either "Inactive on creation" *OR* "Inactive on acknowledge"

E.g. if you look at the more simple MB300 "node down" and "node up" messages seen in RTA Board Maintenance and OnLine Builder, they become stateless alarms that "evaporates" on acknowledge, even though the state (node down) is still present. The "node up" is equally strange, why "alarm" on something positive...

This all boils down to the stateless delivery of AC400 system events to RTA and HMI and the drawbacks of converting them into alarms.

There has not been a business case (or even a possibility) to have the MB300 OPC AE server to collect and remember these states up to date. Please speak with your regional ABB sales representative about future enhancements.

Stefan Stromqvist   

answered 4 days ago


 


By apz on 4/17/2018 | Like (0) | Report

Thank you for an exhaustive explanation.


Add New Comment



Get weekly AKS updates


Partner Exclusive Webinars

 

> – Login to the partner portal to register



Points Redemption Program - Redeem your points for ABB training, Bluetooth speakers and mugs. Terms and conditions >


Earn points when you refer a friend
AKS Referral Program is "Live" - Learn more



AKS Experts


avatar
Ask Govindaraj   

Rank: 9

Working in ABB India Operation Center. Have Project engineering and commissioning experience in ABB 800xA, Freelance, AC500.


avatar
Ask kstoilov   

Rank: 11

Control System Engineer: 800xA, Compact 800, AC500, AC31-50, Advant Master, Simatic, AC&DC Drives 11 years worked for ABB - Control Systems


avatar
Ask Harsha.D   

Rank: 7

Tech.Support,software and commisioning engineer with Proficient knowledge in 800xA and its products, RNRP,Networking in general.


avatar
Ask Flavio Mussolin   

Rank: 4

ABB AVP, Senior Electronic and Automation Engineer with over 30 years of experience in the field of process automation automotive, pharmaceutical, hollow glass, steel and rolling.


avatar
Ask MMM   

Rank: 5

ABB PA CT Technical Support


avatar
Ask Dieter Henkel   

Rank: 19


avatar
Ask nikismith   

Rank: 255

I have been a part of the Recording & Control Factory team for 17 years in total, having spent a number of years as a repairs technician withi the manufacturing department, but being in my current role for 9 years now.


avatar
Ask WvanWees   

Rank: 6

I'm a senior service engineer working for ABB in The Netherlands.


avatar
Ask Ronny Lindström   

Rank: 16

ABB Service Engineer


avatar
Ask Stefan Stromqvist   

Rank: 1

I joined ABB in the year of 1994 and has since 1999 been working as a Service & Support Engineer at BU Control Technologies in Västerås, Sweden. My areas of expertise are: 800xA Base, 800xA for Advant Master, Information Management, operating systems, RNRP and Ethernet comms/networking in general.


avatar
Ask Sumit Gargav   

Rank: 3

I have worked with Freelance in majority, with 800xA FD and Melody system partly. Also had opportunity to work with Protocols - HART,Profibus,FF & Modbus.


avatar
Ask Rob Lyon   

Rank: 2

info@lymac.co.nz I'm an independent DCS software and commissioning engineer with extensive experience in 800xA and other ABB products. I've worked in almost every corner of the world and still haven't seen it all.