RS485
You can operate the RS845 communication in two variants:
- Without diagnosis
- With diagnosis of the transmit data
RS485: 2-wire connection in bus structure to RS485 device(s)
Bus structure, half duplex data transmission
![RS485 1:](Images/png/2200601099__Web.png)
The following CoE objects must be set
Index | Name | Meaning | Data type | Flags | Setting | |
---|---|---|---|---|---|---|
F800:0n | Interface type Ch n | 0x00 | RS232 | BIT1 | RW | 0x01 (1dec) |
0x01 | RS485/422 |
Index | Name | Meaning | Data type | Flags | Setting | |
---|---|---|---|---|---|---|
80n0:06 | Enable half duplex channel n | 0bin | Full duplex: transmitted data are monitored. The bit has no effect in RS232 and RS422 mode | BOOLEAN | RW | 1bin (default) |
1bin | Half duplex: The reception of the data transmitted by the box itself is suppressed |
Index | Name | Meaning | Data type | Flags | Setting | |
---|---|---|---|---|---|---|
80n0:07 | Enable point-to-point connection (RS422) Channel n | 0bin | The module is used in a bus structure in accordance with the RS485 standard. | BOOLEAN | RW | 0bin |
1bin | The module is used for a point-to-point connection (RS422). |
RS485: 2-wire connection with external bridge in bus structure to RS485 device(s)
Bus structure, half duplex data transmission with diagnosis of the transmitted data
![RS485 2:](Images/png/2200604299__Web.png)
The following CoE objects must be set
Index | Name | Meaning | Data type | Flags | Setting | |
---|---|---|---|---|---|---|
F800:0n | Interface type Ch n | 0x00 | RS232 | BIT1 | RW | 0x01 (1dec) |
0x01 | RS485/422 |
Index | Name | Meaning | Data type | Flags | Setting | |
---|---|---|---|---|---|---|
80n0:06 | Enable half duplex channel n | 0bin | Full duplex: transmitted data are monitored. The bit has no effect in RS232 and RS422 mode | BOOLEAN | RW | 0bin |
1bin | Half duplex: The reception of the data transmitted by the box itself is suppressed |
Index | Name | Meaning | Data type | Flags | Setting | |
---|---|---|---|---|---|---|
80n0:07 | Enable point-to-point connection (RS422) Channel n | 0bin | The module is used in a bus structure in accordance with the RS485 standard. | BOOLEAN | RW | 0bin |
1bin | The module is used for a point-to-point connection (RS422). |