Mitsubishi FX3U-485-BD User Manual

B-48
FX Series PLC User's Manual - Data Communication Edition
N:N Network
10 Related Data
10.1 Related Device List
10. Related Data
10.1 Related Device List
10.1.1 For FX1N, FX2N, FX3G, FX3U, FX1NC, FX2NC, and FX3UC PLCs
1. Bit devices
R : Read only (used as a contact in program)
R/W : Read or Write
M : Master station (station No. 0)
L : Slave station (station No. 1 to 7)
Device
number
Name Description
Initial
value
Detec-
tion
R/W
Devices for communication setting
M8038 Parameter setting Communication parameter setting flag — M, L R
M8179 Channel setting
Sets the communication port channel to be used
(in the FX
3G, FX3U and FX3UC).
— M, L R/W
Devices for checking communication status
M8063
Serial communication
error 1 (ch 1)
Turns ON when abnormality occurs in serial
communication using ch 1.
—M, LR
M8438
Serial communication
error 2 (ch 2)
Turns ON when abnormality occurs in serial
communication using ch 2 (in the FX
3G, FX3U and
FX
3UC).
—M, LR
M8183
Data transfer
sequence error
Turns ON when a data transfer sequence error
occurs in the master station.
—LR
M8184
to M8190
Data transfer
sequence error
Turns ON when a data transfer sequence error
occurs in a slave station.
However, data transfer sequence errors within
the slave station itself cannot be detected.
—M, LR
M8191
Data transfer
sequence ON
Remains ON while data transfer is being
executed.
—M, LR

Mitsubishi FX3U-485-BD Specifications

General

Brand	Mitsubishi
Model	FX3U-485-BD
Category	Controller
Language	English