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
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
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). | |||||