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西门子 SB1221数字量输入模块
发布时间:2018/1/5 15:48:00西门子 SB1221数字量输入模块
西门子 SB1221数字量输入模块
西门子 SB1221数字量输入模块
概述
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
应用
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。
设计
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(“接线”)。
功能
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。
技术规范
Article number | 6ES7221-3AD30-0XB0 | 6ES7221-3BD30-0XB0 |
---|---|---|
SIGNAL BOARD SB 1221, 4 DI 5VDC 200KHZ | SIGNAL BOARD SB 1221, 4 DI 24VDC 200KHZ | |
Input current | ||
from backplane bus 5 V DC, typ. | 40 mA | 40 mA |
Power loss | ||
Power loss, typ. | 1 W | 1 W |
Digital inputs | ||
Number of digital inputs | 4; Current-sourcing | 4; Current-sourcing |
| 4 | 4 |
Input voltage | ||
| DC | DC |
| 5 V | 24 V |
| (L+ minus 1.0 V DC) ... L+ (2.2 ... 0 mA) | (L+ minus 5.0 V DC) ... L+ (1.4 ... 0 mA) |
| 0 V ... (L+ minus 2.0 V DC (20 ... 5.1 mA)) | 0 V ... (L+ minus 10 V DC (10 ... 2.9 mA)) |
Input current | ||
| 2.2 mA | 1.4 mA |
| 5.1 mA | 2.9 mA |
| 7 mA | |
Input delay (for rated value of input voltage) | ||
for standard inputs | ||
| Yes; 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms | Yes; 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms |
for interrupt inputs | ||
| Yes | Yes |
for counter/technological functions | ||
| Yes | Yes |
Cable length | ||
| 50 m; shielded, twisted pair | 50 m; shielded, twisted pair |
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 product package | 0.3 m; five times, in product package |
Ambient temperature during operation | ||
| -20 °C | -20 °C |
| 60 °C | 60 °C |
| -20 °C | -20 °C |
| 60 °C | 60 °C |
| -20 °C | -20 °C |
| 50 °C | 50 °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 | ||
Enclosure material (front) | ||
| Yes | Yes |
Dimensions | ||
Width | 38 mm | 38 mm |
Height | 62 mm | 62 mm |
Depth | 21 mm | 21 mm |
Weights | ||
Weight, approx. | 35 g | 35 g |