Input current |
from backplane bus 5 V DC, max. |
700 mA; Without interface module |
Interface modules |
● 20 mA (TTY), power consumption from 5 V/24 V, max. |
300 mA at 5 V, 45 mA at 24 V |
● RS 422/485 (X.27), power consumption from 5 V, max. |
300 mA |
● RS 232C (V.24), power consumption from 5 V, max. |
300 mA |
Memory |
Memory requirements per interface in memory card of S7-CPU |
1 to 5 KB for parameters; 0 to 55 KB for message texts; 0 to 64 KB for loadable drivers |
Interfaces |
Number of interfaces |
2; variable |
Interface physics, 20 mA (TTY) |
Yes |
Interface physics, RS 232C (V.24) |
Yes |
Interface (physical) RS 422/485 (X.27) |
Yes |
20 mA (TTY), cable length shielded, max. |
1 000 m |
RS 232, cable length shielded, max. |
10 m |
RS 422/RS 485, cable length shielded, max. |
1 200 m |
Point-to-point |
● Transmission rate, max. |
115.2 kbit/s; distributed on both interfaces |
● supported printers |
HP-Deskjet, HP-Laserjet, IBM-Proprinter, user-defined |
Integrated protocol driver |
— 3964 (R) |
Yes |
— ASCII |
Yes |
— RK512 |
Yes |
— Printer |
Yes |
— customer-specific drivers reloadable |
Yes |
Transmission rate, 20 mA (TTY) |
— with 3964 (R) protocol, max. |
19.2 kbit/s |
— with ASCII protocol, max. |
19.2 kbit/s |
— with printer driver, max. |
19.2 kbit/s |
— with RK 512 protocol, max. |
19.2 kbit/s |
Transmission rate, RS 422/485 |
— with 3964 (R) protocol, max. |
115.2 kbit/s |
— with ASCII protocol, max. |
115.2 kbit/s |
— with printer driver, max. |
115.2 kbit/s |
— with RK 512 protocol, max. |
115.2 kbit/s |
Transmission speed, RS 232 |
— with 3964 (R) protocol, max. |
115.2 kbit/s |
— with ASCII protocol, max. |
115.2 kbit/s |
— with printer driver, max. |
115.2 kbit/s |
— with RK 512 protocol, max. |
115.2 kbit/s |
Communication functions |
S7 communication |
● S7 extended communication |
Yes |
Number of connections |
● overall |