User`s guide

MBX Driver Help
Cyberlogic Technologies Inc. - 110 -
In polled mode, the recommended polling rate to use for optimum performance is 20
msec.
Verify that the adapter card’s memory address is unique and does not conflict with other
cards in the system. Check for error messages in the Event Viewer. They may aid in
detecting hardware conflicts.
I’ve installed the software. What’s next?
The next step is to configure a device. You will need to know the card’s memory address
and interrupt. Refer to the Quick-Start Guide section for more details.
I’ve configured my device, but when the system boots up, the Event Viewer
shows some error messages. How do I fix that?
The two most common errors result from either a conflict with another device or the
driver configuration not matching the card configuration. Verify that the card’s memory
address matches the driver’s address. Also, compare the state of the interrupt jumper on
the card with the polled/interrupt mode setting of the driver.
If the configurations match, there may be a conflict in the system or the card may be
faulty. If possible, try a card that is known to be good in the system with the same
settings. If errors still occur, try setting the card to polled mode and moving it to a new
memory address. C8000, D0000, D4000 and D8000 are usually good addresses to try. Be
sure to change both the driver and card settings.
There might be a conflict with my device. What should I do?
Try setting the card to polled mode and moving it to a new memory address. C8000,
D0000, D4000 and D8000 are usually good addresses to try. Be sure you change both
the driver and card settings.
When I configure a device, should I use polled mode or interrupt mode?
We recommend polled mode. Interrupt mode gives slightly higher performance, but it
puts a greater load on the CPU. Finding free interrupts and worrying about interrupt
conflicts may also be a concern. For the majority of applications, running in polled mode
with a 20 msec polling interval will provide sufficient throughput. Whichever mode you
choose, be sure the jumper setting on the card matches the driver setting.
The card seems to be working, but I can’t see one of the nodes on the
network. What’s wrong?
There are two things to check. First, make sure the card is plugged into the network.
Second, it’s likely that both nodes have the same network node address. Shutdown the
system, change the card’s network address by changing the DIP switch settings (refer to
the Modicon IBM Host Based Devices User’s Guide from Modicon) and restart the system.
You will now be able to see all of the nodes.
My USB to Modbus Plus (TSXCUSBMBP) adapter works just fine for perhaps a