4 SETTINGS AND PROCEDURES PRIOR TO OPERATION
(d)Station number setting (switch 5 (common for both CH1 and CH2 sides))
•This setting is for communication using the MC protocol.
•When several the Q series C24s are connected on the same line with multidrop connection, set the station number designated in the data items of the transmission frame in each external device to 0 to 31 (0H to 1FH). 
This number designates which external device is to be communicated
with the Q series C24.
•Set the station number to 0 when the system configuration of the external device and the PLC CPU is 1:1.
Q series C24
External device
Station 0 | Station 1 | Station 2 | Station 31 |
POINT
If the communication of data with external device is to be started, check the specifications of the functions to be used and then make the settings and connect the cables.
Make the following switch settings from the GX Developer if there is to be no communication (if the cables are not to be connected) at the interface.
• Communication protocol setting: Set between 0H and 7H.
• Transmission setting, communication rate setting: Set all to OFF.
(2)The setting and data flow in linked operation
(a)Set the related switches as follows when two Q series C24 interfaces are in linked operation.
Switch number | Settings | Setting value | ||
|
|
| Operation setting | b0 = OFF |
Switch 1 |
| Transmission setting | Data bit setting | Set each switch on both CH1 and CH2 sides to |
CH1 side |
| : | the same specification. | |
|
| |||
|
| Communication rate setting |
| Match the external device. |
Switch 2 |
| Communication protocol setting | 8 | |
|
|
| Operation setting | b0 = ON |
Switch 3 |
| Transmission setting | Data bit setting | Set each switch on both CH1 and CH2 sides to |
CH2 side |
| : | the same specification. | |
|
| |||
|
| Communication rate setting |
| Match the external device. |
Switch 4 |
| Communication protocol setting | 0 to 7 | |
Switch 5 | Station number setting |
| Set according to (d) of (1) | |
4 - 17 | 4 - 17 |