Intelligent Device Station - Mitsubishi Electric L26CPU-BT User Manual

Appendix 4.10
(1) Master station  Intelligent device station
This indicates the time from the moment an instruction is issued by the master station and a response from an
intelligent device 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
WT
Monitoring time set in SW0009 (refer to
RT
Number of retries set in SW000B (refer to
When the programmable controller CPU type L26CPU-BT, the transmission speed is 10 Mbps, the link
scan time is 5 ms, the read points are 20 words, 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
452
Processing time for dedicated instructions of
master station <-> intelligent device station
*1
 1.067] + (WT  RT  1000)
Page 430, Appendix 4.1.)
156kbps 625kbps
6 7
*1
*1
 1.067] + (10  0  1000)
*2
2.5Mbps
9
Page 416, Appendix 3.2.)
Page 416, Appendix 3.2.)
 1.067] + (WT  RT  1000)
[ms]
5Mbps 10Mbps
11 12