Comdrv
COMDRV can communicate with any kind of serial device supporting the protocols 3964R, DK3964R, and RK512 (S5). During parameterization the desired procedure variant may be selected. Both, active and passive operation is supported.
COMDRV provides standard protocols for the serial connection of SIMATIC S5/S7 devices. In the S5 operating mode the driver is able to interrupt data traffic in favour of a S5-request. After terminating the data traffic initialized by S5, the interrupted sequence of telegrams is re-started.
Parameters
| Baud Rate | 300 - 19.200 Bit/s |
| No. of Stop Bits | 1, 2 |
| No. of Data Bits | 7, 8 |
| Parity | even, odd, none |
| Modem Operation | on/off (leased line) |
| Modem Watchdog | 1-255s |
| Operating Mode | 3964R, DK3964R, RK512 (S5) |
