5
ACCESS VIA NETWORK MODULES
5.3 MELSECNET/H Module Access Function
5.3.5 Link data transfer processing time specifications
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SY
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CONFIGURA
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SP
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FUNCTIONS
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P
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PROCE
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I/O NUM
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ASS
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M
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A
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FI
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S
* 1 Total time for the number of mounted MELSECNET/H modules.
* 2 For details, refer to the Q Corresponding MELSECNET/H Network System Reference Manual
(PLC to PLC network).
The above calculation formulas are effective under the following conditions:
• No faulty stations
• No transient transmissions
2) Total link device refresh time (
T, R
)
The total link device refresh time can be calculated by the following formula,
with the points assigned to link devices.
T
: Total link device refresh time (sending side)
R
: Total link device refresh time (receiving side)
LB : Total points of link relay (LB) refreshed by the station
*1
LW : Total points of link register (LW) refreshed by the station
*1
LX : Total points of link input (LX) refreshed by the station
*1
LY : Total points of link output (LY) refreshed by the station
*1
KM1,KM2 : Constants
* 1 Total of link device points within the range set by refresh parameters and set in the network range
assignment. (Excluding the points assigned to reserved stations)
Total points for the MELSECNET/H modules that are controlled by the C Controller module.
Table 5.7 KM1 and KM2 values
MELSECNET/H module location
KM1
KM2
Main base unit
1.0
0.43
10
-3
Extension base unit
1.0
0.95
10
-3
[Total link device refresh time]
T
,
R
= KM1 + KM2
[ms]
16
LW
LB LX LY
Summary of Contents for Q06CCPU-V
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