OPC90 Server
The RoviSys Company
Version 7.0
Page 141
4.) For ABB Bailey Infi 90 systems, time synchronization does not start
until after 9 minutes have transpired after OPC90 Server first starts
communicating with its interface. This delay is 3 minutes for ABB
Bailey Network 90 systems.
5.) The PC running OPC90 Server automatically becomes the time
synchronization master whenever its clock is changed by two minutes
or more.
6.) Note that OPC90 Server gives precedence to MCS and OIS nodes as
becoming the time synchronization master.
10.11 Client Does Not See Any OPC Servers When Browsing Remote PC
A service called OPCEnum must be running on the PC to enable browsing
of its OPC servers. Check if this process is running using the Task
Manager, process list. If it is running, make sure the Windows “Network
access: Let Everyone permissions apply to anonymous users” local
security policy is enabled.
The OPC90 install set does not install OPCEnum. It does however
include the OPC Foundation Core Components installation MSI file. This
file can be found in the C:\Program Files\OPC90 Server\OPC Foundation
directory. Double click on the .MSI file to install these core components
which includes the OPCEnum program.
Afterwards, from a command prompt type OPCEnum /Service to install
OPCEnum as a service. Depending on the operating system a reboot of
the PC might be necessary. The DCOM settings of OPCEnum might also
need to be adjusted.
10.12 Client Connects But Does Not Receive Data
Improper DCOM settings can cause multiple instances of OPC90 to run
on the local PC. Only the first instance can communicate with the Bailey
interface. Verify that a single OPC90 process is displayed in the task
manager process list. Note that when OPC90 when a user runs OPC90
manually it may run as a second instance. This is normal. If multiple
OPC90 processes still show up in the task manager list after the manually
run instance is exited, improper DCOM settings are causing this problem.
10.13 Viewing Data in Monitor Mode Does Not Work
1.) Verify the Bailey interface does not require a physical reset. Click on the
Device block and look for this message in the program status section
(lower right side of the program window).