AC450 - AF100 communication problem
We have an AC450 with AF100 installation.
Randomly, we are having short loss of communication in some of the AF100 I/O modules (the loss of communication usually is for 5-10 sec.). Always is in the same I/O cabinet. We have changed the CI801, I/O modules and TU's in the cabinet, but the problem is still repeating 3-4 times a day.
We are also getting this message in the System Message Log (On-Line builder):
MType Code Task Address Data1 Data2
28 -4 CXPHSC1 H'00000B81 H'014D0001 H'08000000
Any help would be appreciated.
Answers
Hi!
You don't mention what kind of modems you're using, but that error message can be an indication that there's some problems with the modems. If possible, I'd try to change them.
Hi Fidel,
if you need to help, you will must to write much more information about your AF100 network and whole log from On-Line builder (ONB). I am pretty sure, that you received much more system messages to ONB as only 28 -4 message. These messages are very important to diagnostic what is problem on your AF100.
If you use the TC516 modems it means, that you use the redundand AF100 with twisted pair cable. Am I right ? But I need to know the topology (drawing) of this bus with station numbers. Did you any changes on this bus (for example adding the new segment of AF100 bus, adding I/O station. adding I/O moduls, replace any I/O station, etc) ?
Below is descrition for 28 -4 message:
> mtype 28 code -4 Process Data Communication
System Error. Reason: Device has one or more system errors.
- data1 *
{
DATA1 0 LFN and LRN of associated data base record.
DATA2 = 32-bit system error diagnostics.
AF100, i.e. LFN = H'014D (333)
H'00200000, Wrong parameter memory
H'00400000, No station configured
H'00800000, Ba version conflict
H'01000000, Invalid configuration table
H'02000000, Invalid telegram detected
H'04000000, Multiple devices (station number conflict)
H'08000000, Permenent sender detected
H'10000000, Too many signal addresses
H'20000000, Bus master synchronization lost
H'40000000, Simultaneous time masters
H'80000000, Invalid bus length
PROFIBUS, i.e. LFN = H'014D (333)
H'40000000, PROFIBUS address conflict
LONWORKS channel, i.e. LFN = H'014D (333)
Channel error bits:
H'00000002, Parameter not correct
H'00000008, Can not open LONWORKS driver
H'00000010, Location mismatch
H'00000020, Supervision time-out
H'00000040, Runtime error
H'00000080, Subnet/node mismatch
H'00010000, Error command received
LONWORKS device, i.e LFN = H'014E (334)
Device error bits:
H'00000002, Parameters not correct
H'00000004, Device not responding
H'00000010, Location mismatch
H'00000020, Supervision time-out
H'00000040, Runtime error
H'00010000, Error command received
}
Hi,
check this information, if that helps
CXPHSC1:AF100 and S800 Supervision task 1
28 :Process Data Communication
-4 :System Error. Reason: Device has one or more system errors.
014D0001: AF100 module in AC450 with ident number 1 "AF100_1"
(CI520,CI522)
H'08000000:Permanent sender detected
Check status of AF100_1 ( #MDB AF100_1 ).
Check whole AF100 network for faulty CIxxx, which have probably
the ’MASTER’ LED permanently enabled. Exchange this module!!
jabr
Source: Advant® Fieldbus 100 User’s Guide
by Rob Lyon
Is this a new AF100 installation it has it worked properly in the past?
by Sumit Gargav
Hello Fidel,
I don't know anything about AC450 & AF100, but found something related to your problem @ solutions bank, Search for keyword "KB14066" in solutions bank.
Hope that helps...
by Fidel Rank: 2288 on 3/18/2014 5:45:26 AM | Like (0) | Report
Modems are TC516.
This is an old installation (about 10 years), but problems started about a month ago.
by Fidel Rank: 2288 on 3/18/2014 5:50:41 AM | Like (0) | Report
Dear Sumit,
I couldn't find KB14066??
Fidel
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