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技術文章
西門子SB1221數(shù)字量輸入模塊
閱讀：1783 發(fā)布時間：2016-3-8西門子SB1221數(shù)字量輸入模塊
 | 訂貨號：6ES7221-3AD30-0XB0 SIMATIC S7-1200, SB1221 數(shù)字量信號板模塊,支持5V DC輸入信號, 4輸入 5V DC,zui高頻率200KHZ |
| 訂貨號：6ES7221-3BD30-0XB0 SIMATIC S7-1200, SB1221 數(shù)字量信號板模塊,支持24V DC輸入信號,4輸入 24V DC ,zui高頻率200KHZ |
概述
- 數(shù)字量輸入作為 SIMATIC S7-1200 CPU 的集成 I/O 的補充
- 可直接插入 CPU
西門子SB1221數(shù)字量輸入模塊 應用領域
SB 1221 信號板數(shù)字量輸入模塊允許將控制器與過程數(shù)字信號連接。
西門子SB1221數(shù)字量輸入模塊 設計
信號板直接插到每個 S7-1200-CPU 前面的支架中。
- 安裝：
信號板可直接插到 SIMATIC S7-1200-CPU 中，因此使用這種方法可以電氣、機械地連接到 CPU。 - CPU 的安裝尺寸保持不變。
- 所有信號板上的端子均可拆卸，便于更換（“*接線”）。
功能
SB 1221 信號板數(shù)字量輸入/輸出模塊將過程中的外部數(shù)字信號電平轉換為 S7-1200 的內(nèi)部信號電平。
技術規(guī)格
Order number | 6ES7221-3AD30-0XB0 | 6ES7221-3BD30-0XB0 | |
|---|---|---|---|
| SIGNAL BOARD SB 1221, 4 DI 5VDC 200KHZ | SIGNAL BOARD SB 1221, 4 DI 24VDC 200KHZ | |
General information |
|
| |
Product type designation | SB 1221 4xDI 5VDC 200kHz | SB 1221 4xDI 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 VDC to L+ (2.2 to 0 mA) | L+ minus 5 VDC to L+ (1.4 to 0 mA) | |
| 0V to L+ minus 2.0 VDC (20 to 5.1 mA) | 0V to L+minus 10 VDC (10 to 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 | |
Interrupts/diagnostics/status information |
|
| |
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 to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting with 2 simultaneously activated, non-adjacent inputs; otherwise up to 55 °C with horizontal mounting or 45 °C with vertical mounting | -20 °C to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting with 2 simultaneously activated, non-adjacent inputs; otherwise up to 55 °C with horizontal mounting or 45 °C with vertical mounting | |
| -20 °C | -20 °C | |
| 60 °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 |
|
| |
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
| |