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(1) For remote net mode
BT {27 + (NI 4.8) + (NW 9.6) + (N 30) + (ni 4.8) + (nw 9.6) + TR} + ST + EX + RT + F [s]
LS =
BT: Constant (transmission speed)
Transmission
speed
BT
NI
The final station number in A, B and C
(It includes the number of dedicated stations but excludes the reserved stations, and must be a multiple
of 8.)
A: Last station number of remote I/O stations
B: Last station number of remote device stations (including the number of occupied stations)
C: Last station number of local, standby master and intelligent device stations
(including the number of occupied stations)
NW
The final station number in B and C
(Includes the number of dedicated stations but excludes the reserved stations, and must be a multiple
of 8.)
Final station
number
NI, NW
N
Number of connected stations (excluding reserved stations)
ni
a + b + c (excluding reserved stations)
a
Total number of occupied stations for remote I/O stations
b
Total number of occupied stations for remote device stations
c
Total number of occupied stations for local stations, standby master station and intelligent device
stations
nw
b + c (excluding reserved stations)
TR
Transient processing time (only when a transient request is made)
• When there is a transient request from the master station
180
• When there is a transient request from the local station
40.8 number of transient transmission stations
156kbps
625kbps
51.2
12.8
1 to 8
9 to 16
17 to 24
8
16
24
2.5Mbps
5Mbps
3.2
1.6
25 to 32
33 to 40
41 to 48
32
40
48
APPENDICES
A
10Mbps
0.8
49 to 56
57 to 64
56
64
431
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Troubleshooting
