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SIMATIC S7/PCS7, SM 321 DIGITAL INPUT MODULE, 16 DI, 24V DC, 1 X 40 PIN, CAPABLE OF DIAGNOSTICS, FOR CONTACTS (CONNECTED/ UNCONNECTED), NAMUR SENSOR, 3/4-WIRE-BERO, WITH FLUTTER MONITORING, PULSE LENGTHENING, WIRE BREAK DETECTION, IM153-2 INTERFACE MOD. REQUIRED |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) |
24 V |
| Input current |
| from load voltage L+ (without load), max. |
100 mA |
| from backplane bus 5 V DC, max. |
100 mA |
| from supply voltage L+, max. |
4 A |
| Power losses |
| Power loss, typ. |
11 W |
| Time stamping |
| Time stamping, supported |
Yes |
| Accuracy |
1 ms |
| Digital inputs |
| Number of digital inputs |
16 |
| Input characteristic curve in accordance with IEC 61131, type 1 |
No |
| Input characteristic curve in accordance with IEC 61131, type 2 |
Yes |
| Number of simultaneously controllable inputs |
| horizontal installation |
| — up to 60 °C, max. |
16 |
| vertical installation |
| — up to 40 °C, max. |
16 |
| Input voltage |
| ● Type of input voltage |
DC |
| ● Rated value, DC |
8.2 V; 8.2V/18V |
| Input current |
| ● for signal "1", typ. |
10 mA |
| Input delay (for rated value of input voltage) |
| for standard inputs |
| — at "0" to "1", min. |
2.5 ms |
| — at "0" to "1", max. |
3.5 ms |
| Cable length |
| ● Cable length, shielded, max. |
400 m; max. 200m with 8.2 V sensor, max. 400m with 18 V sensor |
| ● Cable length unshielded, max. |
Not permitted |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Alarms |
Yes |
| ● Diagnostic alarm |
Yes |
| ● Hardware interrupt |
Yes |
| Diagnostic messages |
| ● Diagnostic functions |
Yes |
| ● Diagnostics |
Yes |
| Diagnostics indication LED |
| ● Group error SF (red) |
Yes |
| ● Status indicator digital input (green) |
Yes |
| Galvanic isolation |
| Galvanic isolation digital inputs |
| ● between the channels |
Yes |
| ● between the channels, in groups of |
8 |
| ● between the channels and the backplane bus |
Yes |
| Permissible potential difference |
| between different circuits |
75 VDC / 60 VAC |
| Isolation |
| Isolation checked with |
600 V DC |
| Ambient conditions |
| Operating temperature |
| ● Min. |
0 °C |
| ● max. |
60 °C |
| Extended ambient conditions |
| ● at cold restart, minimum |
0 °C |
| Connection method |
| required front connector |
1x 40-pin |
| Dimensions |
| Width |
40 mm |
| Height |
125 mm |
| Depth |
120 mm |
| last modified: |
08.09.2014 |
