Toshiba TC-net Instruction Manual page 102

7. How to set the environment for OPC Server
In *1 area, the following information is written.
- Reading Cycle which is set per block.
- The Number of blocks accessed per block (This is number of words.)
- Maximum, Minimum and Average of time which is taken to do the process (Unit : micro
second)
- Maximum, Minimum and Average of time which is taken to read actually (Unit : ms)
In *2 area, the following information is written.
- The Number of blocks accessed per block when you make the setting value of "Scan
memory access" move from 8 to 256
- The Number of accessed when you make the setting value of "Scan memory access" move
from 8 to 256
- The Time for the procedure (Unit : micro second)
The setting value "DmaBlockNum" of "Scan memory access" is one in the line where the
value of "ProcTime" parameter is the minimum.
According to the above sample, "ProcTime" parameter in the line with underline is
minimum (4527) and so you use the "DmaBlockNum = 96" here.
About how to change the setting value, please refer to "Change the prescribed value of JTNI
(PCI Express Card) and JTGI Scan Memory Access Performance" of "7.1".
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