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SIMATIC S7, ANALOG INPUT SM336 6 AI; 15 BIT; FAILSAFE ANALOG INPUTS FOR SIMATIC SAFETY, WITH HART SUPPORT, UP TO CATEGORY 4 (EN954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1 X 20 PIN, |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) |
24 V |
| ● Reverse polarity protection |
Yes |
| Input current |
| from backplane bus 5 V DC, max. |
90 mA |
| from supply voltage L+, max. |
150 mA; Typical |
| Power losses |
| Power loss, typ. |
4.5 W |
| Analog inputs |
| Number of analog inputs |
6 |
| permissible input current for current input (destruction limit), max. |
40 mA |
| Input ranges |
| ● Voltage |
No |
| ● Current |
Yes |
| Input ranges (rated values), currents |
| ● 0 to 20 mA |
Yes |
| ● Input resistance (0 to 20 mA) |
150 Ω; typ. 150 ohms max. 175 ohms |
| ● 4 to 20 mA |
Yes |
| ● Input resistance (4 to 20 mA) |
150 Ω; typ. 150 ohms max. 175 ohms |
| Cable length |
| ● Cable length, shielded, max. |
1 000 m |
| Analog value creation |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. |
16 bit; 15 bits + sign |
| ● Integration time, ms |
20 at 50 Hz 16.7 at 60 Hz |
| ● Interference voltage suppression for interference frequency f1 in Hz |
f=n x (f1+-0.5%) |
| Encoder |
| Connection of signal encoders |
| ● for current measurement as 2-wire transducer |
Yes |
| ● for current measurement as 4-wire transducer |
Yes |
| Errors/accuracies |
| Operational limit in overall temperature range |
| ● Current, relative to input area, (+/-) |
0.2 %; 40 µA |
| Basic error limit (operational limit at 25 °C) |
| ● Current, relative to input area, (+/-) |
0.1 % |
| 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 |
| ● Monitoring 24 V voltage supply ON (green) |
No |
| Galvanic isolation |
| Galvanic isolation analog inputs |
| ● between the channels |
Yes |
| ● between the channels and the backplane bus |
Yes |
| ● between the channels and the power supply of the electronics |
Yes |
| Isolation |
| Isolation checked with |
370V for 1 min |
| Standards, approvals, certificates |
| Highest safety class achievable in safety mode |
| ● acc. to EN 954 |
4 |
| ● SIL according to IEC 61508:2010 |
3 |
| Connection method |
| required front connector |
20-pin |
| Dimensions |
| Width |
40 mm |
| Height |
125 mm |
| Depth |
120 mm |
| Weights |
| Weight, approx. |
350 g |
| last modified: |
13.10.2014 |
