Overview
·数字量输入作为 SIMATIC S7-1200 CPU 的集成 I/O 的补充
·可直接插入 CPU
Area of application
SB 1221 信号板数字量输入模块允许将控制器与过程数字信号连接。
Design
信号板直接插到每个 S7-1200-CPU 前面的支架中。
·安装：
信号板可直接插到 SIMATIC S7-1200-CPU 中，因此使用这种方法可以电气、机械地连接到 CPU。
·CPU 的安装尺寸保持不变。
所有信号板上的端子均可拆卸，便于更换（“永久接线”）。
Functions
SB 1221 信号板数字量输入/输出模块将过程中的外部数字信号电平转换为 S7-1200 的内部信号电平。
Technical Specifications
| Order number | 6ES7221-3AD30-0XB0 | 6ES7221-3BD30-0XB0 |
|---|---|---|
| SIGNAL BOARD SB 1221, 4 DI 5VDC 200KHZ | SIGNAL BOARD SB 1221, 4 DI 24VDC 200KHZ | |
| Product type designation | ||
| Input current | ||
| from backplane bus 5 V DC, typ. | 50 mA | 50 mA |
| Output voltage | ||
| Power supply to the transmitters | ||
| 4 mA; per channel | 4 mA; per channel |
| Power loss | ||
| Power loss, typ. | 1 W | 1 W |
| Digital inputs | ||
| Number of digital inputs | 4; Current-sourcing | 4; Current-sourcing |
| 1 | 1 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes | |
| Input characteristic curve in accordance with IEC 61131, type 2 | Yes | |
| Number of simultaneously controllable inputs | ||
| all mounting positions | ||
| 4 | 4 |
| Input voltage | ||
| DC | DC |
| 5 V | 24 V |
| 0 to 1 V | 0 to 5 V |
| 2 to 6 V | +15 to +30V |
| Input current | ||
| 3 mA | 2 mA |
| 6 mA | 5.8 mA |
| 14 mA | |
| Input delay (for rated ＆#118alue of input voltage) | ||
| for standard inputs | ||
| Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four | Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four |
| 2 µs | 2.5 µs |
| for interrupt inputs | ||
| Yes | Yes |
| for counter/technological functions | ||
| Yes | Yes |
| Cable length | ||
| 50 m; shielded, twisted pair | 50 m; Standard input: 500 m, high-speed counters: 50 m |
| Digital outputs | ||
| Number of digital outputs | 0 | 0 |
| short-circuit protection | No | No |
| Interrupts/diagnostics/status information | ||
| Alarms | ||
| Yes | Yes |
| Diagnostic messages | ||
| Yes | Yes |
| Diagnostics indication LED | ||
| Yes | Yes |
| Degree and class of protection | ||
| Degree of protection acc. to EN 60529 | ||
| Yes | Yes |
| Ambient conditions | ||
| Free fall | ||
| 0.3 m; five times, in dispatch package | 0.3 m; five times, in dispatch package |
| Ambient temperature during operation | ||
| 0 °C to 55 °C horizontal installation, 0 °C to 45 °C vertical installation | -20 °C to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting, 95% humidity, non-condensing |
| 0 °C | -20 °C |
| 55 °C | 60 °C |
| Ambient temperature during storage/transportation | ||
| -40 °C | -40 °C |
| 70 °C | 70 °C |
| Air pressure acc. to IEC 60068-2-13 | ||
| 660 hPa | 660 hPa |
| 1 080 hPa | 1 080 hPa |
| Relative humidity | ||
| 95 % | 95 % |
| Mechanics/material | ||
| Type of housing (front) | ||
| Yes | Yes |
| Dimensions | ||
| Width | 38 mm | 38 mm |
| Height | 62 mm | 62 mm |
| Depth | 21 mm | 21 mm |
| Weights | ||
| Weight, approx. | 40 g | 40 g |
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https://mall.industry.siemens.com/mall/zh/cn/Catalog/Products/10048710?tree=CatalogTree