| SIMATIC S7-300, Counter module FM 350-2, 8 channels, 20 kHz, 24 V encoder for counting, frequency measurement, speed measurement, period duration measurement, dosing incl. configuration package and electronic documentation on CD-ROM |
| Supply voltage |
| Auxiliary voltage 1L+, load voltage 2L+ |
| Rated value (DC) | 24 V |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| Input current |
| from load voltage L+ (without load), max. | 150 mA |
| from backplane bus 5 V DC, max. | 100 mA |
| Encoder supply |
| Type of output voltage | NAMUR-encoder supply: 8.2 V ±2 % |
| Short-circuit protection | Yes |
| Output current |
| Rated value | 200 mA |
| Power loss |
| Power loss, typ. | 10 W |
| Digital inputs |
| Number of digital inputs | 8 |
| Number of NAMUR inputs | 8 |
| Functions | 1 each for gate start/ gate stop |
| Input voltage |
| for signal "0" | -3 to +5V |
| for signal "1" | 11 to 30.2 V |
| Input current |
| for signal "0", max. (permissible quiescent current) | 2 mA |
| for signal "1", typ. | 9 mA |
| Input delay (for rated value of input voltage) |
| for standard inputs |
| — at "0" to "1", max. | 50 µs |
| Cable length |
| shielded, max. | 100 m |
| Digital outputs |
| Number of digital outputs | 8 |
| Short-circuit protection | Yes |
| Limitation of inductive shutdown voltage to | L+ (-40 V) |
| Output voltage |
| for signal "1", min. | L+ (-0.8 V) |
| Output current |
| for signal "1" rated value | 0.5 A |
| for signal "0" residual current, max. | 0.5 mA |
| Output delay with resistive load |
| "0" to "1", max. | 300 µs |
| Switching frequency |
| with resistive load, max. | 500 Hz |
| with inductive load, max. | 0.5 Hz |
| Total current of the outputs (per group) |
| horizontal installation |
| — up to 40 °C, max. | 4 A |
| — up to 60 °C, max. | 2 A |
| all other mounting positions |
| — up to 40 °C, max. | 2 A |
| Cable length |
| shielded, max. | 600 m |
| unshielded, max. | 100 m |
| Encoder |
| Connectable encoders |
| Incremental encoder (asymmetrical) | Yes |
| 24 V initiator | Yes |
| 24 V directional element | Yes |
| NAMUR encoder | Yes |
| 2-wire sensor | Yes |
| NAMUR encoder |
| Input signal | to DIN 19 234 |
| Input current for signal "0", max. | 1.2 mA |
| Input current for signal "1", min. | 2.1 mA |
| Input delay, max. | 50 µs |
| Input frequency, max. | 20 kHz |
| Cable length, shielded, max. | 100 m |
| Interrupts/diagnostics/status information |
| Diagnostics function | Yes; Diagnostic information readable |
| Alarms |
| Diagnostic alarm | Yes; Parameterizable |
| Hardware interrupt | Yes; Parameterizable |
| Diagnostics indication LED |
| Group error SF (red) | Yes |
| Counter |
| Counter input 24 V |
| Number | 8; 32 bit or ±31 bit |
| Input voltage for signal "0" | -3 to +5V |
| Input voltage for signal "1" | 11 to 30.2 V |
| Input current for signal "0", max. (permissible quiescent current) | 2 mA |
| Input current for signal "1", typ. | 9 mA |
| Input delay, max. | 50 µs |
| Counting frequency, max. | 20 kHz; Incremental encoder: 10 kHz |
| Cable length, max. | 100 m |
| Potential separation |
| Potential separation digital inputs |
| between the channels and backplane bus | Yes; and shielding |
| Potential separation digital outputs |
| between the channels and backplane bus | Yes; and shielding |
| Potential separation counter |
| between the channels and backplane bus | Yes; and shielding |
| Connection method |
| required front connector | 1x 40-pin |
| Dimensions |
| Width | 80 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Weights |
| Weight, approx. | 460 g |
| last modified: | 03/29/2019 |
