Mitsubishi Electric MELSEC-A Series Manual page 93

2
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK)
For MELSECNET/H normal station 1Ns1 that is gateway station, change the settings of
MELSECNET II 2-tier first half/second half settings by:
• Dividing the data into the first half and second half and refreshing them by the setting of " Refresh
parameters "
Also, for MELSECNET/H control station 2Mp3 of gateway station, change the settings of
MELSECNET II 3-tier first half/second half settings by:
• Assigning LB/LW (first + last size) to each station by the setting of " Network range assignment
(Common parameters) "
• Dividing the data into the first half and second half and refreshing them by the setting of " Refresh
parameters "
MELSECNET/H network 1
Normal station 1Ns1
LB/LW
0
100
1Mp3
200
1Ns1
500
600
1Ns2
6FF
1FFF
*1 Set not to duplicate B/W on the CPU.
*2 Perform the LB/LW assignment for network 2 control station 2Mp3 including the same LB/LW area as that of 1Mp3 to relay
network 1 control station 1Mp3.
*1
*2
*1
B/W
0
100
180
200
280
380
400
500
580
600
680
77F
1FFF
MELSECNET/H network 2
CPU
1Mp3
2Mp3
2Ns1
2Ns2
1Ns2
Empty
1Mp3
2Mp3
2Ns1
2Ns2
1Ns2
Control station 2Mp3
Common parameters
LB/LW
0
1Mp3
100
2Mp3
2Mp3 180
1Mp3
280
2Mp3
300
380
2Ns1
400
480
2Ns2
4FF
1FFF
Link refresh
2
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