Mitsubishi MELSEC Q Series User Manual

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4.4 MELSECNET/H Module Access Function
4.4.5 Link data send/receive processing time specifications
4
FUNCTIONS
(b) Transmission delay time calculation example
The transmission delay time is calculated in the following system configuration
and conditions.
(System configuration, conditions)
• Transmission method: Cyclic transmission (transient transmission not used)
• Total no. of stations: 2 (1 control station, 1 normal station)
• Receiving side CPU module: C Controller module
• Link device refresh cycle
•L
T : 100ms
•L
R : 100ms
• Link device points
• LB = 1024 points
• LW = 1024 points
• LX = 0 points
• LY = 0 points
• Transmission speed: 10Mbps
• The MELSECNET/H module is mounted on the main base unit.
1) Link device refresh time
2) Link scan time
*1
* 1 For details of the link scan time, refer to the Q Corresponding MELSECNET/H Network
System Reference Manual (PLC to PLC network).
3) Cyclic transmission delay
R 1.82(ms)
1.82(ms)
T = 1.33 + 0.45 10
Total link devices refresh time on sending side
Total link devices refresh time = KM1 + KM2
LB + LX + LY + (LW 16)
16
-3
1024 + 0 + 0 + (1024 16)
16
Total link devices refresh time on receiving side
7.076 (ms)
= 4.0 + (0.45 2)
+
Link scan time LS = KB + (0.45 Total no. of stations)
+
8
8
LB + LY + (LW 16)
0.001
1024 + 0 + (1024 16)
0.001
Transmission delay timeTD1 LT+ T+(LS 1)+ R+LR
100+1.82+(7.076 1)+1.82+100
210.72(ms)

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English