8 - 18
8.4 Initial Setting
8.4.1 Automatic communication parameter
8
UTILITY PACKAGE (GX Configurator-MB)
[Setting items]
For the automatic communication parameter setting, set a value in proper data format 
or within the setting range for each item in the Setting value column, and click the 
 button to save all the set values.
POINT
After the automatic communication parameters have been written to the 
programmable controller CPU, the automatic communication function is operated 
when the programmable controller is powered ON from OFF or the programmable 
controller CPU is reset (with the programmable controller CPU’s RUN/STOP 
switch set to RUN).
Table8.7 Setting items on Automatic communication parameter setting screen
Setting item
Buffer memory address
Reference
CH1 CH2
Automatic 
communication 
parameter 1
Setting parameter existence 
0200
H
 to 
0201
H
(512 to 513)
0380
H
 to 
0381
H
(896 to 897)
Section 7.2
Target station No. 0202
H
 (514) 0382
H
 (898)
Request interval timer value 0203
H
 (515) 0383
H
 (899)
Response monitoring timer value/Broadcast delay value 0204
H
 (516) 0384
H
 (900)
Type specification of the target MODBUS(R) device 0205
H
 (517) 0385
H
 (901)
Read setting
Head buffer memory address 0206
H
 (518) 0386
H
 (902)
Target MODBUS(R) device head number 0207
H
 (519) 0387
H
 (903)
Access points 0208
H
 (520) 0388
H
 (904)
Write setting
Head buffer memory address 0209
H
 (521) 0389
H
 (905)
Target MODBUS(R) device head number 020A
H
(522) 038A
H
(906)
Access points 020B
H
(523) 038B
H
(907)
Automatic 
communication 
parameter 2 to 
32
(Same as in automatic communication parameter 1)
020C
H
 to 
037F
H
(524 to 895)
038C
H
 to 
04FF
H
(908 to 
1279)
End setup