3

System Parameters Screen

The System Parameters Screen selection is used to modify parameters which determine how the Ethernet Interface allocates its available buffer memory. This screen is also used to modify Station Manager parameters.

The System Parameters Screen is shown below:

Figure 3-9. System Parameters Screen

Memor y Pool Allocation Parameters

The Memory Pool Allocation fields define the buffer pools used by the Ethernet Inter- face. The Ethernet Interface RAM memory available after all the Ethernet Interface executive software and configuration information has been loaded is broken into four fixed size pools.

The MEMORY ALLOCATION parameter specifies the percentage of available memory to be allocated to each pool. For example, a value of 10 in this field would assign 10 per- cent of available memory to be allocated to this pool. The total of the MEMORY AL- LOCATION for all buffer pools cannot exceed 100 percent. If the total is less than 100 percent, some of the available memory will not be used.

Buffers are used to hold messages which are sent or received on the network and to save state information regarding the communications software. IN ALL CASES, there must be buffers available and of sufficient size to contain the messages sent or received.

Note

You should not change Memory Pool Allocation parameters without first consulting GE Fanuc Automation

The Buffer Size of the Buffer Pools must be specified in increasing order as follows:

GFK-1004B

Chapter 3 The GEnet System Manager±Station Configuration

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GE GFK-1004B user manual System Parameters Screen, Memor y Pool Allocation Parameters