2 MULTIPLE CPU SYSTEM
POINT
Set the following operation for automatic refresh setting using GX Developer.
1)Select tab "Multiple CPU high speed communication area setting".
2)Set "Use Multiple CPU high speed communication ".
1)
2)
b)Operation example
The example of operating automatic refresh is shown below.
Internal relay
PLC CPU (CPU No.1)
Multiple CPU high speed
transmission area
Motion CPU (CPU No.2)
Multiple CPU high speed |
transmission area |
Internal relay
M0
M2399
M2400
M3039
M3040
M3199
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U3E0\G10000
CPU No.1
transmitting data
Automatic
refresh area
U3E1\G10000
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Transfer |
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in 0.88ms |
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M0
M2399
M2400
Axis status
M3039
M3040
M3199
M3200
M3839
M3840
Data register
D0
D639
D640
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CPU No.2
receiving data
CPU No.2
transmitting data
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M3200
Axis command
signal
M3839
M3840
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Transfer in 0.88ms cycle
Automatic
refresh area
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Automatic
refresh area
Main cycle
M8191
Data register
D0
Axis monitor
device
D639
D640 Control change
D703 register
D704
D8191
(c) Data size consistency check
Whether the Multiple CPU setting parameters are the same for all CPUs or not is automatically checked. A "PARAMETER ERROR (error code: 3012, 3015) " will occur if they do not match.
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