 |
SIMATIC S7, DIGITAL INPUT SM 326, F-DI 24 X DC 24V, FAILSAFE DIGITAL INPUTS FOR SIMATIC S7 FAILSAFE SYSTEMS WITH DIAGNOST. INTERRUPT, UP TO CATEGORY 4 (EN954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1 X 40 PIN |
| Supply voltage |
| Rated value (DC) |
24 V |
| Input current |
| from load voltage L+ (without load), max. |
450 mA |
| from backplane bus 5 V DC, max. |
100 mA |
| Encoder supply |
| Number of outputs |
4; Isolated |
| Output current |
| ● Rated value |
400 mA |
| Power losses |
| Power loss, typ. |
10 W |
| Digital inputs |
| Number of digital inputs |
24 |
| Number of simultaneously controllable inputs |
| all mounting positions |
| — up to 40 °C, max. |
24 |
| — up to 60 °C, max. |
24; (at 24 V) or 18 (at 28.8 V) |
| Input voltage |
| ● Type of input voltage |
DC |
| ● Rated value, DC |
24 V |
| ● for signal "0" |
-30 to +5 V |
| ● for signal "1" |
+11 to +30 V |
| Input current |
| ● for signal "0", max. (permissible quiescent current) |
2 mA |
| ● for signal "1", typ. |
10 mA |
| Input delay (for rated value of input voltage) |
| for standard inputs |
| — at "0" to "1", max. |
3.4 ms |
| — at "1" to "0", max. |
3.4 ms |
| Cable length |
| ● Cable length, shielded, max. |
200 m |
| ● Cable length unshielded, max. |
100 m |
| Encoder |
| Connectable encoders |
| ● 2-wire sensor |
Yes; if short-circuit test is deactivated |
| — Permissible quiescent current (2-wire sensor), max. |
2 mA |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Diagnostic alarm |
Yes |
| Diagnostic messages |
| ● Diagnostic functions |
Yes |
| ● Diagnostic information readable |
Yes |
| Diagnostics indication LED |
| ● Fail-safe operation |
Yes |
| ● Group error SF (red) |
Yes |
| Ex(i) characteristics |
| Max. values of input circuits (per channel) |
| ● Ta (permissible ambient temperature), max. |
60 °C |
| Galvanic isolation |
| Galvanic isolation digital inputs |
| ● between the channels |
Yes |
| ● between the channels, in groups of |
12 |
| ● between the channels and the backplane bus |
Yes |
| Isolation |
| Isolation checked with |
500V DC/350V AC |
| Standards, approvals, certificates |
| Highest safety class achievable in safety mode |
| ● acc. to DIN VDE 0801 |
AK 6 |
| ● acc. to EN 954 |
Cat. 4 |
| ● acc. to IEC 61508 |
SIL 3 |
| Connection method |
| required front connector |
40-pin |
| Dimensions |
| Width |
80 mm |
| Height |
125 mm |
| Depth |
120 mm |
| Weights |
| Weight, approx. |
442 g |
| last modified: |
25.09.2014 |
