Mitsubishi FX3U-232-BD User Manual page 513

FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
12. Related Data
12.1 Related Device List (RS Instruction)
1. Bit devices
Device
M8063 Serial communication error flag This device turns ON when a communication error occurs.
M8120 Communication setting keep
M8121 Sending wait flag
M8122 Sending request
M8123 Receiving complete flag
M8124 Carrier detection flag
*1
Time-out check flag
M8129
M8161 8-bit processing mode
R: Read only
W: Write only
R/W: Read or Write
*1. Not provided in FX
2. Word devicesite
Device
D8063 Serial communication error code
D8120 Communication format setting This device sets the communication format.
D8122 Amount of remaining send data This device stores the amount of remaining send data.
D8123 Amount of data already received This device stores the amount of data already received.
D8124 Header
D8125 Terminator
*1
Time-out time setting
D8129
*2
Communication parameter display This device stores communication parameters set in the PLC.
D8405
*2
Operation mode display
D8419
R: Read only
R/W: Read or Write
*1. Not provided in FX
*2. Provided only in FX
Name
This device keeps the communication setting status (for FX
This device remains ON while the PLC is waiting to send.
When this device is set to ON by SET instruction, the PLC starts
to send.
This device turns ON when receiving is completed.
This device turns ON and OFF in synchronization with the CD signal.
This device turns ON when data receiving is suspended and the
next set of receive data is not given within the time set by the time-
out time setting device (D8129).
This device sets the send/receive data to 16-bit data or 8-bit data.
, FX (FX), FX , and FX
2C
0N 2
Name
When the serial communication error flag (M8063) turns ON, this
device stores the corresponding error code.
This device sets the header (initial value: STX (H02)).
This device sets the terminator (initial value: ETX (H03)).
This device sets the time-out time.
This device stores the communication type being used.
, FX (FX), FX , and FX
0N 2 2C
and FX PLCs.
3UC
3U
12.1 Related Device List (RS Instruction)
Description
(before Ver. 2.00) PLCs.
2N
Description
(before Ver. 2.00) PLCs.
2N
12 Related Data
A
B
R/W
C
R
PLC). W
0N
R
R/W
R/W
D
R
R/W
W
E
F
R/W
R/W
R/W
R
R
G
R/W
R/W
R/W
R
H
R
I
Apx.
F-75