Switch settings station number setting switches – Yaskawa MP920 Communications Module User Manual
Page 211
8 Example Communications Module Applications
8.3.4 MELSEC Settings (AJ71UC24 Example)
8-20
Switch Settings
Station Number Setting Switches
Set 01 to 31, but not 0. (Recommended value: 01)
Communications Specification Setting Switches (For AJ71UC24 Mod-
ules)
Note: The shaded parts show setting examples.
* 1. The following table shows the settings of switches 13, 14 and 15.
* 2. With the AJ71C24-S8, the terminating resistance ON/OFF setting on
the transmission side depends on the wiring.
* 3. With the AJ71C24-S8, the terminating resistance ON/OFF setting on
the reception side depends on the wiring.
Switch Name
Setting
Set Value
(Recommended Value)
× 10 (rotary switches 0 to 9)
The second digit for station
number
0
× 1 (rotary switches 0 to 9)
The first digit for station
number
1
Switch Name
Setting Item
Setting Contents
Set
Value
ON
OFF
SW11
Main channel setting
RS-422
RS-232C
OFF
SW12
Data bit setting
8 bits
7 bits
ON
SW13
Transmission Speed set-
ting
See the following table.
*1
OFF
SW14
ON
SW15
ON
SW16
Parity bit setting
Yes
No
ON
SW17
Even parity
Odd parity
Even
Odd
ON
SW18
Stop bit setting
2 bits
1 bit
OFF
SW21
Checksum setting
Yes
No
ON
SW22
Write enable/disable set-
ting during RUN
Enabled
Disabled
ON
SW23
Computer link
Multi-drop
Computer link
Multi-drop link
ON
*2
SW24
Not used.
-
-
OFF
*3
bps
300
600
1,200
2,400
4,800
9,600
19,200
SW13
OFF
ON
OFF
ON
OFF
ON
OFF
SW14
OFF
OFF
ON
ON
OFF
OFF
ON
SW15
OFF
OFF
OFF
OFF
ON
ON
ON