F-95
FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
12 Related Data
12.2 Details of related devices (RS 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
cation
I
Re
mo
te
Ma
intenance
Apx.A
D
isco
nti
nued
models
12.2.11 Amount of data already received [D8123]
This device stores the amount of data already received.
1. Detailed contents.
This device stores the amount of data already received in 8-bit (1 byte) units.
12.2.12 Header [D8124]
This device sets the header.
1. Detailed contents
When "header provided" is selected in the communication format setting, the lowest-order byte of D8124 is
used.
When data is sent, the data in the lowest-order byte of D8124 is added at the head of the specified send data.
When data is received, receiving begins when the data in the lowest-order byte of D8124 is received.
12.2.13 Terminator [D8125]
This device sets the terminator.
1. Detailed contents
When "terminator provided" is selected in the communication format setting, the lowest-order byte of D8125
is used.
When data is sent, the lowest-order byte of D8125 is added at the end of the specified send data.
When data is received, receiving is completed when the data in the lowest-order byte of D8125 is received.
12.2.14 Time-out time setting time [D8129]
This device sets the time-out time setting.
1. Detailed contents
This device sets the error evaluation time (in 10-ms units) used when receiving of data is interrupted.
The setting range is from 1 to 255 (10 ms to 2550 ms).
When "0" is set in D8129, the time-out time is set to 100 ms.
2. Cautions on use
• In all PLCs except FX
2
(FX), FX
2C
and FX
0N
PLCs, the time-out time setting can be set using a parameter.
• Even if the time-out time setting is changed while the RS instruction is being driven, it is not reflected.
After changing the setting, set the RS instruction to OFF and ON.
• When setting the time-out time setting in FX
0N
PLCs, set the communication setting latched (battery
backed) device (M8120) to ON.
12.2.15 Communication parameter display [D8405]
This device stores the communication parameters set in FX
3S
, FX
3G
, FX
3GC
, FX
3U
and FX
3UC
PLCs.
1. Detailed contents
When the PLC power is turned ON, D8405 stores the contents of the communication parameters.
The contents of the parameters are the same as those of the communication format setting device (D8120).
Summary of Contents for FX-485ADP
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Page 120: ...B 2 FX Series PLC User s Manual Data Communication Edition N N Network ...
Page 188: ...C 2 FX Series PLC User s Manual Data Communication Edition Parallel Link ...
Page 244: ...D 2 FX Series PLC User s Manual Data Communication Edition Computer Link ...
Page 344: ...E 2 FX Series PLC User s Manual Data Communication Edition Inverter Communication ...
Page 700: ...H 2 FX Series PLC User s Manual Data Communication Edition Programming Communication ...
Page 752: ...I 2 FX Series PLC User s Manual Data Communication Edition Remote Maintenance ...
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