Problems downloading program at Freelance

Greetings sirs/madames from ABB,

I receintly had problems doing the download for two AC900 Controllers. The controllers have two independent Profibus networks and share a common Industrial Ethernet Switch. Randomly, the discharge presents problems, having to stop the two PLCs, reseting the PLCs and stopping the communication with the Workstations.

Please help me answering these questions:

1. What is the cause of this fault?

2. Is this fault related with network connections or earthing?

3. Is the fault related with memory restriction of the controllers?

4. How can I solve this problem?


 Download 1.jpg

 Download 2.jpg

Add New Comment


asked 2 months ago




From the first image it could be because of memory restriction and there PRAM and number of objects needs to be changed. be careful anychange here need controller full download(cold start).

But from second image error code ffff0104, Check in controller logs, this goes into fatal error history ? or when this error appears F(Failure) LED litup contantly RED ?

Strongly suggested to register a case via your local/regional L3 Support center.

Sumit Gargav   

answered 2 months ago


By juan_ab7 on 1/10/2018 | Like (0) | Report

Greetings Mr. Gargav.

What is the L3 Support center?

Which is the regional Support for El Salvador?

By juan_ab7 on 1/10/2018 | Like (0) | Report

Mr. Summit, with the first image,
How can we expand or increase the memory of the controller? Is there any memory expansion card?

By Sumit Gargav on 1/29/2018 | Like (0) | Report

Hi, Sorry for late reply. I am not sure you bought system directly from ABB or via SI/Partner. With valid sentinel user gets technical support. For that get connect with your local ABB contact.
Regarding memory of controller, double click on controller in HW tree in configuration mode, in boot parameters tab you can find PRAM & number of object field, based on controller type there are some default values are set. Change no. Of objects by 100-200. And PRAM value same amount. By that user can increase programmable memory.
But careful these changes needs controller full download means controller will stop for a while(1 min or so...) may cause process impact.
Hope that helps...

Add New Comment


Have a look at this thread:

It talks about AC 800F but the same principle applies to AC 900F

Dieter Henkel   

answered 1 month ago


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

Ask Govindaraj   

Rank: 10

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

Ask Dieter Henkel   

Rank: 19

Ask nikismith   

Rank: 246

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.

Ask Rob Lyon   

Rank: 2 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.

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.

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.

Ask Harsha.D   

Rank: 7

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

Ask MMM   

Rank: 5

ABB PA CT Technical Support

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.

Ask Ronny Lindström   

Rank: 16

ABB Service Engineer

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

Ask WvanWees   

Rank: 6

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