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Mitsubishi Electric MELSEC-Q Series - Page 204

Mitsubishi Electric MELSEC-Q Series
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202
(3) Punctuality is guaranteed
Set whether or not to assure the punctuality. (Default: Punctuality is guaranteed)
If the "Punctuality is guaranteed" checkbox is checked, each station performs transient transmissions for the
number of times specified in "Maximum No. of Transients in One Station", which keeps the link scan time
constant. ( Page 80, Section 4.1.6)
The following describes the link scan operation varied depending on whether the punctuality is assured or not.
(4) Maximum No. of Transients in One Station
Set the number of transient transmissions that one station can perform in one link scan. (Setting range: 1 to 10
times, Default: 2 times)
Punctuality
assurance
Link scan operation
Punctuality is
guaranteed.
• Link scan time is kept constant.
• Link scan time is longer compared to the case where "Punctuality is not guaranteed".
• Link scan time increases as the value set in "Maximum No. of Transients in One Station"
increases.
Punctuality is not
guaranteed.
• Link scan time will vary when transient transmission is requested.
• The variation in link scan time increases as the value set in "Maximum No. of Transients in One
Station" increases.

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