F-97
FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
12 Related Data
12.4 Details of Related Devices (RS2 Instruction)
A
Comm
on I
te
ms
B
N:
N N
etwo
rk
C
Paral
le
l Li
nk
D
Com
puter Li
nk
E
In
verter
C
omm
uni
cation
F
N
on-Proto
col
C
ommunicati
on
(R
S/RS
2 Instru
ction
)
G
No
n-
Protoc
ol
Co
mmuni
ca
tion
(FX
2N
-2
32IF)
H
Programm
ing
Comm
uni
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I
Re
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Ma
intenance
Apx.A
D
isco
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models
2. Word devices
R: Read only
W: Write only
R/W: Read or Write
12.4
Details of Related Devices (RS2 Instruction)
Available channels vary depending on the main unit.
For details, refer to Section 3.2.
12.4.1 Serial communication error [M8062, M8063 and M8438]
These devices turn ON when an error occurs during serial communication.
1. Detailed contents
These devices work as serial communication error flags.
M8062 turns ON when an error occurs in serial communication using communication port ch0.
M8063 turns ON when an error occurs in serial communication using communication port ch1.
M8438 turns ON when an error occurs in serial communication using communication port ch2.
When M8063 turns ON, a corresponding error code is stored in D8063.
When M8438 turns ON, a corresponding error code is stored in D8438.
2. Cautions on use
Serial communication errors are not cleared even when communication is restored.
Cleared when the power is turned off and on.
Device
Name
Description
R/W
ch0
ch1
ch2
D8062 D8063 D8438
Serial
communication error
code
When the serial communication error flag turns ON, this device
stores the corresponding error code.
R
D8370 D8400 D8420
Communication
format setting
This device sets the communication format.
R/W
D8372 D8402 D8422
Amount of
remaining send data
This device stores the amount of remaining send data.
R
D8373 D8403 D8423
Amount of data
already received
This device stores the amount of data already received.
R
—
D8405 D8425
Communication
parameter display
This device stores communication parameters set in the PLC.
R
D8379 D8409 D8429
Time-out time
setting
This device sets the timeout time.
R/W
D8380 D8410 D8430
Header 1 and
header 2
These devices set the headers 1 to 4.
R/W
D8381 D8411 D8431
Header 3 and
header 4
R/W
D8382 D8412 D8432
Terminator 1 and
terminator 2
These devices set the terminators 1 to 4.
R/W
D8383 D8413 D8433
Terminator 3 and
terminator 4
R/W
D8384 D8414 D8434
Receiving sum
(receive data)
This device stores the received sum check value.
R
D8385 D8415 D8435
Receiving sum
(calculation result)
This device stores the sum check value calculated from the
received data.
R
D8386 D8416 D8436 Sending sum
This device stores the sum check value added to the send
data.
R
D8389 D8419 D8439
Operation mode
display
This device stores the communication type being used.
R
Summary of Contents for FX-485ADP
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