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Simatic/TI 505 Ethernet Driver Help

Optimizing Simatic / TI 505 Ethernet Communications

The Simatic / TI 505 Ethernet driver has been designed to provide the best performance with the least amount of

impact on the system's overall performance. While the Simatic / TI 505 Ethernet driver is fast, there are a couple

of guidelines that can be used to control and optimize the application and gain maximum performance.

Our server refers to communications protocols like Simatic / TI 505 Ethernet as a channel. Each channel defined

in the application represents a separate path of execution in the server. Once a channel has been defined, a

series of devices must then be defined under that channel. Each of these devices represents a single Simatic 505

controller from which data will be collected. While this approach to defining the application will provide a high

level of performance, it won't take full advantage of the Simatic / TI 505 Ethernet driver or the network. An

example of how the application may appear when configured using a single channel is shown below.

Each device appears under a single Simatic / TI 505

Ethernet channel. In this configuration, the driver must

move from one device to the next as quickly as possible to

gather information at an effective rate. As more devices are

added or more information is requested from a single

device, the overall update rate begins to suffer.

If the Simatic / TI 505 Ethernet driver could only define one single channel, then the example shown above would

be the only option available; however, the Simatic / TI 505 Ethernet driver can define up to 100 channels. Using

multiple channels distributes the data collection workload by simultaneously issuing multiple requests to the

network. An example of how the same application may appear when configured using multiple channels to

improve performance is shown below.

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