Mitsubishi Electric FX2N-485-BD, User Manual

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2.2.2
Selection of Wiring
(1) When two-pair wiring is required.
1) When an RS422 unit is connected.
2) When N:N network no use.
3) When the dedicated protocol is used and high speed response is equired (when the transmission sentence
wait time is required to be 70 ms or less).
For the transmission sentence wait time, refer to the users manual of the FX-485PC-IF.
4) When the on-demand function of the dedicated protocol is used.
However, the RS485/422 unit must be connected to the 485BD on the one-to-one basis.
5) When wiring is added to the system which has been already constructed using two-pair wiring.
(2) When one-pair wiring is required.
1) When wiring is added to the system which has been already constructed using one-pair wiring.
2) When N:N network use.
3) When two-pair wiring is not necessary.
2
FX
2N
-485-BD COMMUNICATION BOARD MOUNTING AND WIRING
2-3