How to interpret PM861 Controller log (AC 800M Configuration 800xA)

How to interpret PM861 Controller log

We have experienced that a PM861 Controller seemingly without external influence has stalled and erased its application program. We have seen this happen twice since November last year. The CPU is close to 10 years old and we are using Control Builder version 5.0.1.2. I have attached the log file and would very much appreciate some help in interpreting this log file.  I think the log file indicates that there may be a hardware fault, since it lists a Memory parity error, but the last incident this week also indicates that a Profibus module was Hot swapped which it clearly was not. No one touched the PLC when it happened. Since a PM861 is a costly item we are reluctant to replace unless we are reasonably sure it will fix the problem.

C--PM861_Controller_.txt

Comments (0) | New Comment

Add New Comment

NoJaHan

asked 10 months ago
Closed

Answers

Memory Parity Error indicates most probably the hardware issue. So replacing the controller is solution. However to be sure send the log file to ABB Support and someone will be able to confirm.

elemravi

answered 10 months ago

report

Comments (0) | New Comment

Add New Comment

I assume that you mean "Hot swapped" is shown in the log as "Hot removal of CEX module at position 1 detected". I don't see that anywhere else in the log and if this issue has happened twice since November, I would expect to see the same message prior to the CPU stopping. I would lean more towards an issue in the CPU. According to document 3BSE040269, this CPU model number PM861K01 is near the end of the limited phase which is short of being in the obsolete phase. I know that v5.0 entered into the limited phase as well. You may want to consider an upgrade to hardware and software in the Active lifecycle phase.

Just as an FYI.. We had a CPU that failed and would not allow us to even connect to it. We had no choice but to replace it. If you do decide to replace the CPU, make sure to write down values such as internal PID setpoints or any value that may have changed from its intial value. When we pressed the Init button, the CPU reverted back to the initial value. The internal PID setpoints reverted back to 0 and we had some issues starting up the line again. Best of luck!

marshge

answered 10 months ago

report

Comments (0) | New Comment

Add New Comment

Ask a Question Upload New App

Follow @abbcontroltech 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 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.

Ask Harsha.D

Rank: 7

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

Ask Dieter Henkel

Rank: 19

Ask Govindaraj

Rank: 9

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

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.

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 Ronny Lindström

Rank: 16

ABB Service Engineer

Ask MMM

Rank: 5

ABB PA CT Technical Support

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 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 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.

WvanWees

Rank: 6

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