| Article number | 6ES7350-2AH01-0AE0 | 
|  | FM350-2, Counter Mod., 8 Channels, 20KHz | 
| 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 |  | 
| NAMUR encoder supply |  | 
| ● 8.2 V | Yes | 
| ● Short-circuit protection | Yes | 
| ● Output current, max. | 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 | 
| for NAMUR encoders |  | 
| — for signal “0”, max. | 1.2 mA | 
| — for signal “1”, min. | 2.1 mA | 
| Input delay (for rated value of input voltage) |  | 
| ● Input frequency, max. | 20 kHz | 
| for standard inputs |  | 
| — at “0” to “1”, max. | 50 µs | 
| for NAMUR 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; to DIN 19 234 | 
| ● 2-wire sensor | Yes | 
| 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 |  | 
| Number of counter inputs | 8; 32 bit or ±31 bit | 
| Counter input 24 V |  | 
| ● Input voltage for signal “0” | -3 to +5V | 
| ● Input voltage for signal “1” | 11 to 30.2 V | 
| ● Input current for signal “1”, typ. | 9 mA | 
| ● Counting frequency, max. | 20 kHz; Incremental encoder: 10 kHz | 
| 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 / header |  | 
| required front connector | 1x 40-pin | 
| Dimensions |  | 
| Width | 80 mm | 
| Height | 125 mm | 
| Depth | 120 mm | 
| Weights |  | 
| Weight, approx. | 460 g |