Appendix 4.9 Processing Time For Dedicated Instructions Of Local Station <-> Local Station - Mitsubishi Electric L26CPU-BT User Manual

Appendix 4.9
(1) Local station  Local station
This indicates the time from the moment an instruction is executed by one local station until a response from
another local station is received.
[Expression]
[Maximum value]
(a) G(P).RIRD instruction
OT + LS  [BC + {(read points + 16) / 16}
OT Processing time of LCPU dedicated instructions: 0.5 [ms]
LS
Link scan time (refer to
BC Constant
Transmission
speed
BC
SL Target station sequence scan time
(0 when reading buffer memory in the CC-Link)
WT
Monitoring time set in SW0009 (refer to
RT
Number of retries set in SW000B (refer to
When the programmable controller CPU type is L26CPU-BT, the transmission speed is 10 Mbps, the link
scan time is 5 ms, the read points are 20 words (buffer memory in the CC-Link), the monitoring time is 10
s, and the number of retries is zero.
OT + LS  [BC + {(read points + 16) / 16}
= 0.5 + 5  [12 + {(20 + 16) / 16}
= 0.5 + 5  [12 + {3  1.067}] + 0
= 76.505
= 76.5 [ms]
*1 Round up below the decimal point
*2 Time elapsed when retries of a dedicated instruction occur
450
Processing time for dedicated instructions of local
station <-> local station
*1
 1.067] + SL + (WT  RT  1000)
Page 430, Appendix 4.1.)
156kbps 625kbps
6 7
*1
*1
 1.067] + 0 + (10  0  1000)
2.5Mbps
9
Page 416, Appendix 3.2.)
Page 416, Appendix 3.2.)
 1.067] + SL + (WT  RT  1000)
*2
[ms]
5Mbps 10Mbps
11 12