Mitsubishi Electric MELSEC FX Series - 4 N:N Network; Related Flags and Data Registers; Auxiliary Relays

FX communication
N:N network 4
4-1
4
4. N:N Network
For diagnostics, please refer to chapter 12.
4.1 Related Flags and Data Registers
4.1.1 Auxiliary Relays
R : Read only W : Write only M : Master station L : Slave station
Note:
*1 The number of communication errors that have occurred in each station cannot be counted in
the CPU error status, the program error status or the stop status.
*2 Number in accordance with the slave station No.
Example: FX
0N
, FX
1S
……………
Slave station No.1 is M505, Slave station No.2 is M506,
~ Slave station No.7 is M511.
FX
2N
, FX
2N
, FX
1N
……
Slave station No.1 is M8184, Slave station No.2 is M8185,
~ Slave station No.7 is M8190.
Attribute
Auxiliary relays
Name Description
Response
type
FX
0N
,
FX
1S
FX
1N
, FX
2N
,
FX
2NC
R M8038
N:N network
parameter setting
Used to set N:N network
parameters
M, L
R M504 M8183
Communication error of
master station
ON when communication error
occurs in the master station.
*1
L
R
M505 to
M511
*2
M8184 to
M8190
*2
Communication error of
slave station
ON when communication error
occurs in the slave station.
*1
M, L
R M503 M8191 Data communication
ON when communicating to
another station.
M, L
Note:
• Devices M503 to M511 in the FX
0N
and FX
1S
cannot be used in the program.
These devices are used by the N:N network.