C-1
Settings on the C24 module in the MELSEC PLC
system
AJ71(U)C24
Station number:
When communicating with the E-series: 0
Mode setting:
When communicating with the E-series: A
Setting of the switches:
Switch
Default
comm.
settings in
E-series
software
Setting items
Position of setting
switch
Notes
ON OFF
SW11 ON Main channel
settings
RS-422 RS-232C Valid for
modes A to D
SW12 ON Data length 8 bits 7 bits –
SW13 OFF Transmission
speed setting
Refer to the table below –
SW14 ON
SW15 ON
SW16 OFF Parity check Enabled Disabled –
SW17 OFF Parity setting Even Odd Valid only
when SW16
is ON
SW18 OFF Stop bit 2 bits 1 bit –
SW21 ON Sum check Enabled Disabled For dedi-
cated protocol
SW22 ON Write during
RUN
Enabled Disabled