| Article number | 6ES7355-0VH10-0AE0 | 6ES7355-1VH10-0AE0 | 
|  | Control unit FM355C, 4 chan. | Control unit FM355S, 4 chan. | 
| Supply voltage |  |  | 
| Load voltage L+ |  |  | 
| ● Rated value (DC) | 24 V | 24 V | 
| ● permissible range, lower limit (DC) | 20.4 V | 20.4 V | 
| ● permissible range, upper limit (DC) | 28.8 V | 28.8 V | 
| Input current |  |  | 
| from load voltage L+ (without load), max. | 310 mA; Typ. 260 mA | 270 mA; typ. 220 mA | 
| from backplane bus 5 V DC, max. | 75 mA; typ. 50 mA | 75 mA; typ. 50 mA | 
| Power loss |  |  | 
| Power loss, typ. | 6.5 W | 5.5 W | 
| Power loss, max. | 7.8 W | 6.9 W | 
| Digital inputs |  |  | 
| Number of digital inputs | 8 | 8 | 
| Input characteristic curve in accordance with IEC 61131, type 2 | Yes | Yes | 
| Input voltage |  |  | 
| ● Rated value (DC) | 24 V | 24 V | 
| ● for signal “0” | -3 to +5V | -3 to +5V | 
| ● for signal “1” | 13 to 30V | 13 to 30V | 
| Input current |  |  | 
| ● for signal “1”, typ. | 7 mA | 7 mA | 
| Cable length |  |  | 
| ● shielded, max. | 1 000 m | 1 000 m | 
| ● unshielded, max. | 600 m | 600 m | 
| Digital outputs |  |  | 
| Number of digital outputs |  | 8 | 
| Short-circuit protection |  | Yes; Electronic | 
| Limitation of inductive shutdown voltage to |  | L+ (-1.5 V) | 
| Controlling a digital input |  | Yes | 
| Switching capacity of the outputs |  |  | 
| ● on lamp load, max. |  | 5 W | 
| Load resistance range |  |  | 
| ● lower limit |  | 240 Ω | 
| ● upper limit |  | 4 kΩ | 
| Output voltage |  |  | 
| ● for signal “1”, min. |  | L+ (-2.5 V) | 
| Output current |  |  | 
| ● for signal “1” rated value |  | 100 mA | 
| ● for signal “1” permissible range for 0 to 60 °C, min. |  | 5 mA | 
| ● for signal “1” permissible range for 0 to 60 °C, max. |  | 150 mA | 
| ● for signal “0” residual current, max. |  | 0.5 mA | 
| Parallel switching of two outputs |  |  | 
| ● for logic links |  | Yes | 
| Switching frequency |  |  | 
| ● with resistive load, max. |  | 100 Hz | 
| ● with inductive load, max. |  | 0.5 Hz | 
| ● on lamp load, max. |  | 100 Hz | 
| Total current of the outputs (per group) |  |  | 
| all mounting positions |  |  | 
| — up to 60 °C, max. |  | 400 mA | 
| Cable length |  |  | 
| ● shielded, max. |  | 1 000 m | 
| ● unshielded, max. |  | 600 m | 
| Analog inputs |  |  | 
| Number of analog inputs | 4 | 4 | 
| permissible input voltage for voltage input (destruction limit), max. | 30 V | 30 V | 
| permissible input current for current input (destruction limit), max. | 40 mA | 40 mA | 
| Input ranges |  |  | 
| ● Voltage | Yes | Yes | 
| ● Current | Yes | Yes | 
| ● Thermocouple | Yes | Yes | 
| ● Resistance thermometer | Yes | Yes | 
| Input ranges (rated values), voltages |  |  | 
| ● 0 to +10 V | Yes | Yes | 
| — Input resistance (0 to 10 V) | 100 kΩ | 100 kΩ | 
| ● -1.75 V to +11.75 V | Yes | Yes | 
| — Input resistance (-1.75 V to +11.75 V) | 100 kΩ | 100 kΩ | 
| ● -80 mV to +80 mV | Yes | Yes | 
| — Input resistance (-80 mV to +80 mV) | 10 MΩ | 10 MΩ | 
| Input ranges (rated values), currents |  |  | 
| ● 0 to 20 mA | Yes | Yes | 
| — Input resistance (0 to 20 mA) | 50 Ω | 50 Ω | 
| ● 0 to 23.5 mA | Yes | Yes | 
| — Input resistance (0 to 23.5 mA) | 50 kΩ | 50 Ω | 
| ● -3.5 mA to +23.5 mA | Yes | Yes | 
| — Input resistance (-3.5 mA to +23.5 mA) | 50 Ω | 50 Ω | 
| ● 4 mA to 20 mA | Yes | Yes | 
| — Input resistance (4 mA to 20 mA) | 50 kΩ | 50 Ω | 
| Input ranges (rated values), thermocouples |  |  | 
| ● Type B | Yes | Yes | 
| — Input resistance (Type B) | 10 MΩ | 10 MΩ | 
| ● Type J | Yes | Yes | 
| — Input resistance (type J) | 10 MΩ | 10 MΩ | 
| ● Type K | Yes | Yes | 
| — Input resistance (Type K) | 10 MΩ | 10 MΩ | 
| ● Type R | Yes | Yes | 
| — Input resistance (Type R) | 10 MΩ | 10 MΩ | 
| ● Type S | Yes | Yes | 
| — Input resistance (Type S) | 10 MΩ | 10 MΩ | 
| Input ranges (rated values), resistance thermometer |  |  | 
| ● Pt 100 | Yes | Yes | 
| — Input resistance (Pt 100) | 10 MΩ | 10 MΩ | 
| Thermocouple (TC) |  |  | 
| Temperature compensation |  |  | 
| — internal temperature compensation | Yes | Yes | 
| — external temperature compensation with Pt100 | Yes | Yes | 
| Characteristic linearization |  |  | 
| ● parameterizable | Yes | Yes | 
| — for thermocouples | Type B, J, K, R, S | Type B, J, K, R, S | 
| — for resistance thermometer | Pt100 (standard) | Pt100 (standard) | 
| Cable length |  |  | 
| ● shielded, max. | 200 m; 50 m at 80 mV and thermocouples | 200 m; 50 m at 80 mV and thermocouples | 
| Analog outputs |  |  | 
| Number of analog outputs | 4 |  | 
| Voltage output, short-circuit protection | Yes |  | 
| Voltage output, short-circuit current, max. | 25 mA |  | 
| Current output, no-load voltage, max. | 18 V |  | 
| Output ranges, voltage |  |  | 
| ● 0 to 10 V | Yes |  | 
| ● -10 V to +10 V | Yes |  | 
| Output ranges, current |  |  | 
| ● 0 to 20 mA | Yes |  | 
| ● 4 mA to 20 mA | Yes |  | 
| Connection of actuators |  |  | 
| ● for voltage output two-wire connection | Yes |  | 
| ● for current output two-wire connection | Yes |  | 
| Load impedance (in rated range of output) |  |  | 
| ● with voltage outputs, min. | 1 kΩ |  | 
| ● with voltage outputs, capacitive load, max. | 1 µF |  | 
| ● with current outputs, max. | 500 Ω |  | 
| ● with current outputs, inductive load, max. | 1 mH |  | 
| Cable length |  |  | 
| ● shielded, max. | 200 m; 50 m at 80 mV and thermocouples |  | 
| Analog value generation for the inputs |  |  | 
| Integration and conversion time/resolution per channel |  |  | 
| ● Resolution with overrange (bit including sign), max. | 14 bit; 12 bit or 14 bit, parameterizable | 14 bit; 12 bit or 14 bit, parameterizable | 
| Analog value generation for the outputs |  |  | 
| Settling time |  |  | 
| ● for resistive load | 0.1 ms |  | 
| ● for capacitive load | 3.3 ms |  | 
| ● for inductive load | 0.5 ms |  | 
| Encoder |  |  | 
| Connection of signal encoders |  |  | 
| ● for voltage measurement | Yes | Yes | 
| ● for current measurement as 4-wire transducer | Yes | Yes | 
| Connectable encoders |  |  | 
| ● 2-wire sensor | Yes | Yes | 
| — permissible quiescent current (2-wire sensor), max. | 1.5 mA | 1.5 mA | 
| Errors/accuracies |  |  | 
| Operational error limit in overall temperature range |  |  | 
| ● Voltage, relative to input range, (+/-) | 0.6 %; ±0.6 to ±1% | 0.6 %; ±0.6 to ±1% | 
| ● Current, relative to input range, (+/-) | 0.6 %; ±0.6 to ±1% | 0.6 %; ±0.6 to ±1% | 
| ● Resistance thermometer, relative to input range, (+/-) | 0.6 %; ±0.6 to ±1% | 0.6 %; ±0.6 to ±1% | 
| ● Voltage, relative to output range, (+/-) | 0.5 % |  | 
| ● Current, relative to output range, (+/-) | 0.6 % |  | 
| Basic error limit (operational limit at 25 °C) |  |  | 
| ● Voltage, relative to input range, (+/-) | 0.4 %; 80 mV: ±0.6 %; 250 to 1 000 mV: ±0.4 %; 2.5 to 10 V: ±0.6 %; 3.2 to 20 mA: ±0.5 % | 0.4 %; 80 mV: ±0.6 %; 250 to 1 000 mV: ±0.4 %; 2.5 to 10 V: ±0.6 %; 3.2 to 20 mA: ±0.5 % | 
| ● Current, relative to input range, (+/-) | 0.4 %; ±0.4 to ±0.6 % | 0.4 %; ±0.4 to ±0.6 % | 
| ● Resistance thermometer, relative to input range, (+/-) | 0.4 %; ±0.4 to ±0.6 % | 0.4 %; ±0.4 to ±0.6 % | 
| ● Voltage, relative to output range, (+/-) | 0.3 % |  | 
| ● Current, relative to output range, (+/-) | 0.5 % |  | 
| Interrupts/diagnostics/status information |  |  | 
| Substitute values connectable | Yes; Parameterizable | Yes; Parameterizable | 
| Integrated Functions |  |  | 
| Counter | No | No | 
| Control technology |  |  | 
| ● Number of closed-loop controllers | 4 | 4 | 
| Potential separation |  |  | 
| Potential separation controller |  |  | 
| ● between the channels | No | No | 
| ● between the channels and backplane bus | Yes; Optocoupler | Yes; Optocoupler | 
| Isolation |  |  | 
| Isolation tested with | 500 V DC | 500 V DC | 
| connection method / header |  |  | 
| required front connector | 2x 20-pin | 2x 20-pin | 
| Dimensions |  |  | 
| Width | 80 mm | 80 mm | 
| Height | 125 mm | 125 mm | 
| Depth | 120 mm | 120 mm | 
| Weights |  |  | 
| Weight, approx. | 470 g | 470 g |