Yaskawa MP900 Series MPLOGGER - Manual (Page 101)

8 FAQ
8-2
Q1 What is ADO?
ADO is a driver software which allows Microsoft Access to read MDB files. The installation
of an ADO that is well suited to the Windows environment is necessary because MPLOG-
GER uses MDB files to store log data.
Q2 Excel has started but the PLC Menu hasn’t appeared.
If Excel is started independently or the special workbook is opened directly from Explorer,
the MPLOGGER Add-in Module will not start and the PLC Menu will not be added.
Always start the application from the Windows Start Menu by selecting Program -
MPLOGGER - _MPLOGGER .
Q3 When MPLOGGER starts, a message appears saying the Active-
X Module Memosrv.ocx cannot be loaded.
This means that the MPLOGGER Active-X Module was not registered successfully upon
installation. You need to re-install the module.
Q4 When Excel starts, a message appears saying that the file con-
tains macros.
The MPLOGGER Add-in Module contains VBA macros. It does not contain macro code
that will affect other books. Enable the macros when this message is displayed.
Q5 Not all the cells are updated in one cycle of the display update
function for monitoring.
If a large number of tags are set in the cells, MPLOGGER sends a number of communica-
tions commands to the PLC to collect all the tag data. In some cases, this process requires a
lot of time.
If the display update cycle time is too short, a new update will be requested before all the
data from the previous update is collected. The actual cycle time is shown in the Data Com-
munications Server Window. Set the cycle time as this value, and add some leeway.
Q6 Data Logging is not collecting data on the specified cycle.
If there are large numbers of tags assigned for data logging, it may take a long time to collect
the data, and MPLOGGER will be unable to complete the collection within the specified
time cycle. If the data collection of some tags is more critical than others, separate them into
another group and assign a different cycle time.
Q7 The data log is not stored.
Confirm the Data Communications Server is enabled for communications.
If the Data Communications Server is closed together with MPLOGGER (i.e., by closing
Excel), log data will not be collected.