OPC90 Server
The RoviSys Company Version 7.0 Page 139
interface device is a NCIU01 or INCIC01. Enable the Device
DEBIG_LOG error reporting option and search the OPC90 log file
messages for such an error.
7.) Memory capacity of the Bailey PCU node has been exceeded, check
its status using a OPC90 Server MODSTAT block. Note that this error
is extremely rare.
10.6 Random Blocks Are Receiving Bad Quality Indication
1.) Verify the total number of blocks have not exceeded the capacity of the
Bailey interface or OPC90 license limit.
2.) When this occurs with data values received via DCOM run
DCOMCNFG and delete all of the default protocols out of the Default
Protocols list except the “Connection-Oriented TCP/IP” protocol.
10.7 Sporadic Data Transfer of Export Blocks to Bailey
The OPC90 AOL, DOL, ODD, OMSDD, ORCM, ORMC, ORMSC and
OSTN blocks are used to export data of the named type to Bailey consoles
or controllers. Unfortunately, the ABB Bailey CIU interfaces are primarily
designed as data importing devices and handle these export blocks at a
much lower priority then the import point types. If the OPC90 database
contains a large number of import blocks, the CIU can become so busy
processing the incoming exception reports that it never gets around to
sending the export block data that OPC90 successfully commanded it to
send. For example when the OPC client writes to the OPC90 AOL block
IN tag, OPC90 transfers that value to the OUT tag after it has been
successfully written to the Bailey CIU. If that value is never received within
the Bailey system (or received at significant delays), this signifies the ABB
Bailey CIU is overwhelmed with processing import exception reports.
There are four possible solutions to this ABB Bailey CIU problem.
3.) Use combinations of OPC90 and Bailey RMSC and RCM blocks to
send analog and digital data.
4.) Move the OPC90 export blocks onto a separate ABB Bailey CIU
dedicated for these types of blocks.
5.) Upgrade the ABB Bailey CIU to a newer model.
6.) Determine if ABB Bailey has a newer CIU firmware revision that
might correct this problem.
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