Processing Times; Link Refresh Time - Mitsubishi Electric MELSEC Q Series User Manual

13.5

Processing Times

Described in this section is the cyclic transmission processing time associated with network module access.
For transient transmission processing time, refer to processing time for each function.
(Page 475, Appendix 5)
13.5.1

Link refresh time

(1) For CC-Link IE Controller Network, MELSECNET/H
The following describes processing time in the CC-Link IE Controller Network and MELSECNET/H.
Link refresh time can be calculated by the following formula, with the points assigned to link devices.
KM1, KM2: Constants
Network module location
Main base unit
Extension base unit
LB: Total points of link relay (LB) refreshed by the station
LX: Total points of link input (LX) refreshed by the station
LY: Total points of link output (LY) refreshed by the station
LW: Total points of link register (LW) refreshed by the station
*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)
(2) For CC-Link IE Field Network
The following describes processing time in the CC-Link IE Field Network.
Link refresh time can be calculated by the following formula, with the points assigned to link devices.
KM1, KM2: Constants
Network module location
Extension base unit
RX: Total points of link input (RX) refreshed by the station
RY: Total points of link output (RY) refreshed by the station
RWw, RWr: Total points of link register (RWw, RWr) refreshed by the station
*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)
244
Link refresh time [ms]
KM1 + KM2  {(LB + LX + LY) / 16 + LW}
Link refresh time [ms]
KM1 + KM2  {(RX + RY) / 16 + RWw + RWr}
Main base unit
Q24DHC-V
Q24DHC-V
CC-Link IE Controller Network
KM1 KM2
1.0
0.36  10
1.0
0.97  10
*1
*1
*1
*1
KM1
1.0
1.0
*1
*1
Q24DHC-VG Q24DHC-LS Q26DHC-LS
Q24DHC-VG Q24DHC-LS Q26DHC-LS
MELSECNET/H
KM1
-3
1.0
-3
1.0
KM2
-3
0.41  10
-3
0.99  10
*1
Q12DC-V
Q12DC-V
KM2
-3
0.41  10
-3
0.97  10