Hitachi LQE050, Hardware Manual

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4 OPERATIONS
4-7
4.3 Response Time
Figure 4-6 shows a plot of the response times the CPU link module takes to transfer G-register data
(A response time is the interval time that elapses before the data in the G-register in one CPU is
reflected in the G-register in another CPU connected to the same link line).
The response times indicated here are those that are typical where only the CPU link module is
mounted on the CPU mount base. If any other optional module, such as the ET.NET module, is
additionally mounted, longer response times may result than those shown in Figure 4-6.
Average response time [ms]
Number of CPUs linked
0
0
100
200
300
400
500
600
700
800
900
2 4 8 16 14 12 10 6
: 1 word
: 8 words
: 16 words
: 32 words
: 64 words
Transfer areas per unit
Figure 4-6 Response Time