Chapter 7 Network Configuration; General Information - HMS Anybus X-gateway Modbus-TCP User Manual

7. Network Configuration

7.1 General Information

The Anybus X-gateway features built-in web pages for easy configuration. The web pages are all de-
scribed in this chapter. To access the web configuration pages, the following system requirements need
to be met:
• Internet Explorer 7.0 or 8.0
• Javascript enabled
Note: Altering the configuration while the X-gateway is exchanging data between the two networks may
affect performance.
Note: Only one user at a time should be accessing the configuration web pages. If two or more users
make simultaneous changes to the configuration, the configuration saved last will overwrite other chang-
es.
There are things to take into consideration when making the configuration.
• Remember to apply the configuration in order for changes to take effect. See "X-gateway Man-
agement" on page 37. As soon as you have saved data to the configuration but not yet applied it,
you will see the box below at the top of the web pages:
• A maximum of 64 Modbus-TCP servers can be added to the configuration.
• A maximum of 64 transactions can be set up to the servers in the configuration.
• Take care when choosing scan times for the transactions. The mimimum allowed scan time (ms)
is the total number of transactions multiplied by three and cannot be less than 10 ms.
• Take care not to map too much data. The data limits are 256 bytes input data and 256 bytes out-
put data, including optional control/status word and live list.
Anybus X-gateway for Modbus-TCP - Modbus-TCP
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