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SIMATIC S7, DIGITAL OUTPUT SM 326, 10 DO; 24V DC, 2A, FAILSAFE DIGITAL OUTPUT FOR SIMATIC S7F SYSTEMS WITH DIAGNOST. INTERRUPT, 1 X 40 PIN |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) |
24 V; 1L+, 2L+, 3L+ |
| Input current |
| from load voltage1L+, max. |
70 mA; from supply voltage |
| from load voltage 2L+ (without load), max. |
100 mA |
| from load voltage 3L+ (without load), max. |
100 mA |
| from backplane bus 5 V DC, max. |
100 mA |
| Power losses |
| Power loss, typ. |
12 W |
| Digital outputs |
| Number of digital outputs |
10 |
| short-circuit protection |
Yes |
| Limitation of inductive shutdown voltage to |
L+ (-53 V) without series diode, L+ (-33 V) with series diode |
| Switching capacity of the outputs |
| ● Lamp load, max. |
5 W |
| Output voltage |
| ● for signal "1" with series diode, min. |
L+ (-1.8 V) |
| ● for signal "1" without series diode, min. |
L+ (-1 V) |
| Output current |
| ● for signal "1" rated value |
2 A |
| ● for signal "1" permissible range for 0 to 40 °C, min. |
7 mA |
| ● for signal "1" permissible range for 0 to 40 °C, max. |
2 A; 2 A for horizontal installation, 1 A for vertical installation |
| ● for signal "1" permissible range for 40 to 60 °C, min. |
7 mA |
| ● for signal "1" permissible range for 40 to 60 °C, max. |
1 A; for horizontal installation |
| ● for signal "0" residual current, max. |
0.5 mA |
| Switching frequency |
| ● with resistive load, max. |
10 Hz |
| ● with inductive load, max. |
2 Hz |
| ● on lamp load, max. |
10 Hz |
| Aggregate current of outputs (per group) |
| horizontal installation |
| — up to 40 °C, max. |
7.5 A; without series diode, 5 A with series diode |
| — up to 60 °C, max. |
5 A; without series diode, 4 A with series diode |
| vertical installation |
| — up to 40 °C, max. |
5 A; without series diode, 4 A with series diode |
| Cable length |
| ● Cable length, shielded, max. |
1 000 m; 200 m for SIL3, AK 6, Cat 4 |
| ● Cable length unshielded, max. |
600 m |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Diagnostic alarm |
Yes |
| Diagnostic messages |
| ● Diagnostic information readable |
Yes |
| Diagnostics indication LED |
| ● Fail-safe operation |
Yes |
| ● Group error SF (red) |
Yes |
| Galvanic isolation |
| Galvanic isolation digital outputs |
| ● between the channels |
Yes |
| ● between the channels, in groups of |
5 |
| ● between the channels and the backplane bus |
Yes |
| ● between the channels and the power supply of the electronics |
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 5 and 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. |
465 g |
| last modified: |
25.09.2014 |
