All, Below is the rsom-output of the occurence of this issue with our 8.4.2 system. ====================================================================== SINK PATH: BLOK2:UNIT_OVZ3.II0001 (C0D2E5) SOURCE PATH: 034_0026_SQ:UNIT_STAT.LO01 (C0D2E3) rsom on SINK-CP: ID # Next Hdr Adr Status Lbug Opt? PID # Size Xdata FScan 05 0072:D3BC Local C0D2E5 N 00060 101 N N OM OPEN POINTS DATABASE OPEN VAR INFORMATION 0073638C ID #005 001 034_0026_SQ:UNIT_STAT.LO01 N 016 001 3F800000 0073:6F94 Scanning 0226 R N -01 01 0000000001 02F9 0216 Time Stamp: Not Available rsom on SOURCE-CP: ID # Next Hdr Adr Status Lbug Opt? PID # Size Xdata FScan 07 0076:1514 Remote C0D2E5 N 00060 059 N N 19 0076:A100 Remote C0D2E5 N 00060 001 N N OM OPEN POINTS DATABASE OPEN VAR INFORMATION 00746320 ID #007 OM OPEN POINTS DATABASE OPEN VAR INFORMATION 00746320 ID #019 ====================================================================== Point is not shown any of the export-list on the source-CP! So by extracting the output of rsom, it can be detected. If anyone is intrested in the script to extract data from rsom, let me know. Regards, Sander > Hi Sander, > Once you know the link is bad, there are probably several ways of fixing > it, the problem is how to detect a bad link, before the programming which > uses the link, fails or executes incorrectly because of the incorrect > input. > Perhaps there is a way of running an rsom and capturing the error messages > at regular intervals, thus generating an alarm when errors are reported, > which would draw the operator or engineer's attention. (just thinking > aloud) > > I know in the perfect Invensys world one would not have P2P links, but in > real life it's almost unavoidable, so why is there so little (none except > for the dbvu, which doesn't even report errors of this kind) alarming on > this P2P stuff > > We know of 2 bad links, maybe there are more,...... > > Rgds, > > Dirk > > > > sander@xxxxxxxxxxx > Sent by: foxboro-bounce@xxxxxxxxxxxxx > 06/09/2010 15:07 > Please respond to > foxboro@xxxxxxxxxxxxx > > > To > foxboro@xxxxxxxxxxxxx > cc > > Subject > Re: [foxboro] P2P links locked > > > > > > > Dirk, > > We've had the same issue some time ago. > Connections between different CPs. Also fixed it relaying the connection > to a different parameter, checkpointing en switching the connection to the > original parameter. > With us it did seem to happen only the connections with a CALC as the > source. > > Regards, > Sander > > >> Dirk, >> did the point show bad, deleted or out of service in the station block? >> I run a script every day that checkpoints all control stations and then >> uses >> dbvu on the checkpoint files to find bad p2p links. It emails me the >> results. >> Kevin >> >> On Mon, Sep 6, 2010 at 8:37 PM, <dirk.pauwels@xxxxxxxxxx> wrote: >> >>> Hi list, >>> Lately we experienced some problems with P2P links where the target in >>> one >>> peer is not responding anymore to changes on the source in the other >>> peer. >>> (CP270 on 8.4.2) >>> ie >>> Source CP6001: VACUUM_R:R1_V_062PVO.OUT ---> target CP6003 VACUUM: >>> LOCK_VACP2.RI0001 (value did not change) >>> and >>> CP6001:R04:P_MODULE_NEW.BO0005 --> CP6003 VACUUM:VACUUM_ASK.BI04 ( BI04 >>> remained true, when it was actually false in the source) >>> >>> We tried everything to get these links "unlocked" except an initialize >>> all >>> (delete & undelete + checkpointing, deleting both blocks and rebuilding >>> them + checkpointing , reading the source tag in other block in >>> CP6003....) nothing worked >>> >>> Because i couldn't do an initialize all, which solves the problem >>> according to Invensys, I changed the seq to use another Boolean out >>> (BO0011 in stead of BO0005) and used the MEAS in stead of OUT for the >>> Aout >>> >>> We'll probably do an initialize all in the next shutdown >>> >>> >>> My question to the list is following: >>> >>> Does anyone have some sort of script we can run to detect similar >>> "locked" >>> P2P links? I've been checking with Rsom, but this is very tedious >>> (checking line per line manually of every list refering to the CP for >>> errors). dbvu did not reveal any errors. >>> Now we were taken by surprise, there's nothing in the I/A system that >>> checks these things and offers alarming possibilities.... our interlock >>> valve handling was compromised because the data it used was not > updated. >>> I >>> would like to prevent his in future. >>> >>> Thanks & rgds, >>> >>> Dirk >>> >>> >>> >>> _______________________________________________________________________ >>> This mailing list is neither sponsored nor endorsed by Invensys Process >>> Systems (formerly The Foxboro Company). Use the info you obtain here at >>> your own risks. Read http://www.thecassandraproject.org/disclaimer.html >>> >>> foxboro mailing list: //www.freelists.org/list/foxboro >>> to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join >>> to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave >>> >>> >> >> >> >> >> _______________________________________________________________________ >> This mailing list is neither sponsored nor endorsed by Invensys Process >> Systems (formerly The Foxboro Company). Use the info you obtain here at >> your own risks. Read http://www.thecassandraproject.org/disclaimer.html >> >> foxboro mailing list: //www.freelists.org/list/foxboro >> to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join >> to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave >> >> > > > > _______________________________________________________________________ > This mailing list is neither sponsored nor endorsed by Invensys Process > Systems (formerly The Foxboro Company). Use the info you obtain here at > your own risks. Read http://www.thecassandraproject.org/disclaimer.html > > foxboro mailing list: //www.freelists.org/list/foxboro > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave > > > > > > > _______________________________________________________________________ > This mailing list is neither sponsored nor endorsed by Invensys Process > Systems (formerly The Foxboro Company). Use the info you obtain here at > your own risks. Read http://www.thecassandraproject.org/disclaimer.html > > foxboro mailing list: //www.freelists.org/list/foxboro > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave > > _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave