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MELSEC-Q
5 PARAMETER SETTINGS
8) Transient setting (Refer to Section 7.4.1)
Set the execution conditions for the transient transmission.
"Maximum no. of transients in 1 scan"
Set the number of transients (total for one entire network) that a single
network can execute in one link scan.
• Valid setting count
: 1 to 255 times
• Default
: 2 times
"Maximum no. of transients in one station"
Set the number of transients that a single station can execute in one
link scan.
• Valid setting count
: 1 to 10 times
• Default
: 2 times
9) Specification of low-speed cyclic transmission (Refer to Section 7.3)
Set the execution conditions under which the link data (LB/LW) is sent
at a low frequency (low-speed cyclic transmission) separately from the
normal cyclic transmission.
The following selections can be made when the send ranges (low-
speed LB, low-speed LW) of each station are set for the low-speed
cyclic transmission.
"Transmit data of one station in 1 scan"
Set this item when sending data to be communicated in a batch mode
to other stations at the rate of one station per link scan.
• Default: Disabled
"Fixed term cycle interval setting"
The low-speed cyclic transmission is executed at the set frequency.
• Valid setting frequency
: 1 to 65535 s
(18 hours, 12 minutes and 15 second)
• Default
: Disabled
"System times"
The low-speed cyclic transmission is executed according to the set
time.
Hour/minute/second of the system timer cannot be omitted.
• Setting
: 1 to 8 points (year/month/date/hour/minute/second)
• Default
: Disabled
POINT
Low-speed cyclic transmission cannot be set on the Basic model QCPU,
Q00UJCPU, Q00UCPU, Q01UCPU and safety CPU. Hence, low-speed cyclic
transmission cannot be executed.
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