6ES7321-7BH01-0AA0 SIMATIC S7-300, digital input SM 321, isolated, 16 DI; 24 V DC, 1x 20-pole, hardware interrupt, diagnostics, suitable for isochronous mode
原价为：$80.00。$65.00当前价格为：$65.00。
| Supply voltage | ||
| Load voltage L+ | ||
| ● Rated value (DC) | 24 V | |
| ● permissible range, lower limit (DC) | 20.4 V | |
| ● permissible range, upper limit (DC) | 28.8 V | |
| ● Reverse polarity protection | Yes | |
| Input current | ||
| from load voltage L+ (without load), max. | 90 mA | |
| from backplane bus 5 V DC, max. | 130 mA | |
| Encoder supply | ||
| Number of outputs | 2 | |
| Type of output voltage | L+ (-2.5 V) | |
| Short-circuit protection | Yes; Electronic | |
| additional (redundant) feed | Yes | |
| Output current | ||
| ● Rated value | 120 mA | |
| ● permissible range, lower limit | 0 mA | |
| ● permissible range, upper limit | 150 mA | |
| Power loss | ||
| Power loss, typ. | 4 W | |
| Digital inputs | ||
| Number of digital inputs | 16 | |
| Input characteristic curve in accordance with IEC 61131, type 2 | Yes | |
| Number of simultaneously controllable inputs | ||
| horizontal installation | ||
| — up to 40 °C, max. | 16 | |
| — up to 60 °C, max. | 16 | |
| vertical installation | ||
| — up to 40 °C, max. | 16 | |
| Input voltage | ||
| ● Type of input voltage | DC | |
| ● Rated value (DC) | 24 V | |
| ● for signal “0” | -30 to +5 V | |
| ● for signal “1” | 13 to 30V | |
| Input current | ||
| ● for signal “1”, typ. | 7 mA | |
| Input delay (for rated value of input voltage) | ||
| for standard inputs | ||
| — parameterizable | Yes; 0.1 / 0.5 / 3 / 15 / 20 ms | |
| Encoder connection | ||
| ● Fixed current limitation for wire-break monitoring, min. | 10 kΩ | |
| ● Fixed current limitation for wire-break monitoring, max. | 18 kΩ | |
| Cable length | ||
| ● shielded, max. | 1 000 m | |
| ● unshielded, max. | 600 m | |
| Encoder | ||
| Connectable encoders | ||
| ● 2-wire sensor | Yes | |
| — permissible quiescent current (2-wire sensor), max. | 2 mA | |
| Interrupts/diagnostics/status information | ||
| Alarms | Yes | |
| Diagnostics function | Yes; Parameterizable | |
| Alarms | ||
| ● Diagnostic alarm | Yes; Parameterizable | |
| ● Hardware interrupt | Yes; Parameterizable | |
| Diagnoses | ||
| ● Diagnostic information readable | Yes | |
| ● Wire-break | Yes; to I< 1 mA | |
| Diagnostics indication LED | ||
| ● Group error SF (red) | Yes | |
| ● Status indicator digital input (green) | Yes | |
| ● Encoder supply Vs (green) | Yes | |
| Potential separation | ||
| Potential separation digital inputs | ||
| ● between the channels | No | |
| ● between the channels, in groups of | 16 | |
| ● between the channels and backplane bus | Yes; Optocoupler | |
| Isolation | ||
| Isolation tested with | 500 V DC | |
| connection method | ||
| required front connector | 20-pin | |
| Dimensions | ||
| Width | 40 mm | |
| Height | 125 mm | |
| Depth | 120 mm | |
| Weights | ||
| Weight, approx. | 200 g | |
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