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西門(mén)子SB 1221 數(shù)字量輸入模塊
發(fā)布者:zhengyy999  發(fā)布時(shí)間:2018-05-28 15:37:17


SB 1221 數(shù)字量輸入模塊


Overview

  • 數(shù)字量輸入作為 SIMATIC S7-1200 CPU 的集成 I/O 的補(bǔ)充
  • 可直接插入 CPU

Area of application

SB 1221 信號(hào)板數(shù)字量輸入模塊允許將控制器與過(guò)程數(shù)字信號(hào)連接。


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Design

信號(hào)板直接插到每個(gè) S7-1200-CPU 前面的支架中。

  • 安裝:
    信號(hào)板可直接插到 SIMATIC S7-1200-CPU 中,因此使用這種方法可以電氣、機(jī)械地連接到 CPU。
  • CPU 的安裝尺寸保持不變。
  • 所有信號(hào)板上的端子均可拆卸,便于更換(“永久接線”)。

Functions

SB 1221 信號(hào)板數(shù)字量輸入/輸出模塊將過(guò)程中的外部數(shù)字信號(hào)電平轉(zhuǎn)換為 S7-1200 的內(nèi)部信號(hào)電平。


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

 

 

  • ● Supply current, max.

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

  • ● in groups of

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

 

 

  • — up to 40 °C, max.

4

4

Input voltage

 

 

  • ● Type of input voltage

DC

DC

  • ● Rated &#118alue (DC)

5 V

24 V

  • ● for signal "0"

0 to 1 V

0 to 5 V

  • ● for signal "1"

2 to 6 V

+15 to +30V

Input current

 

 

  • ● for signal "0", max. (permissible quiescent current)

3 mA

2 mA

  • ● for signal "1", min.

6 mA

5.8 mA

  • ● for signal "1", typ.

14 mA

Input delay (for rated &#118alue of input voltage)

 

 

for standard inputs

 

 

  • — Parameterizable

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

  • — at "0" to "1", max.

2 μs

2.5 μs

for interrupt inputs

 

 

  • — Parameterizable

Yes

Yes

for counter/technological functions

 

 

  • — Parameterizable

Yes

Yes

Cable length

 

 

  • ● shielded, max.

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

 

 

  • ● Alarms

Yes

Yes

Diagnostic messages

 

 

  • ● Diagnostic functions

Yes

Yes

Diagnostics indication LED

 

 

  • ● for status of the inputs

Yes

Yes

Degree and class of protection

 

 

Degree of protection acc. to EN 60529

  • ● IP20

Yes

Yes

Ambient conditions

 

 

Free fall

 

 

  • ● Fall height, max.

0.3 m; five times, in dispatch package

0.3 m; five times, in dispatch package

Ambient temperature during operation

 

 

  • ● permissible temperature range

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

  • ● min.

0 °C

-20 °C

  • ● max.

55 °C

60 °C

Ambient temperature during storage/transportation

 

 

  • ● min.

-40 °C

-40 °C

  • ● max.

70 °C

70 °C

Air pressure acc. to IEC 60068-2-13

 

 

  • ● Storage/transport, min.

660 hPa

660 hPa

  • ● Storage/transport, max.

1 080 hPa

1 080 hPa

Relative humidity

 

 

  • ● permissible range (without condensation) at 25 °C

95 %

95 %

Mechanics/material

 

 

Type of housing (front)

  • ● plastic

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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