上海湘昌自动化设备有限公司（西门子代理商）
联系人:李军（先生)工程师
手机：13037425070
电话：021-60524801 传真（FAX）:021-57893688
工作QQ：390380550
E-mail:390380550@QQ.COM
24小时销售技术咨询： 13037425070
地址：上海市松江区新浜工业园甪彭路18号
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- 为CPU的本机I/O提供更多的数字量输入
- 用于使控制器灵活地适应相关任务的要求
- 用于使用附加输入对系统进行后续扩展
Area of application
数字量输入模块允许将控制器与过程中的数字信号连接。
这为用户提供了下列优势：
- 最佳适应性：
使用可以根据需要混合的信号模块，用户可以使其控制器准确地满足相关任务的要求。这可以避免产生不必要的投资。可以使用带有 8 个、16 个和 32 个输入/输出通道的模块。
- 灵活性：
如果任务后续有所扩展，可以升级控制器。更新用户程序非常简单。
Functions
SM 1221 数字量输入信号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
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6ES7221-1BF30-0XB0
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6ES7221-1BH30-0XB0
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SM 1221 DI 8x24 VDC
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SM 1221 DI 16x24 VDC
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Supply voltage
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24 V DC
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Yes
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Yes
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permissible range, lower limit (DC)
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20.4 V
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20.4 V
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permissible range, upper limit (DC)
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28.8 V
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28.8 V
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Input current
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from backplane bus 5 V DC, max.
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105 mA
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130 mA
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Digital inputs
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- from load voltage L+ (without load), max.
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4 mA; per channel
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4 mA; per channel
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Output voltage
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Power supply to the transmitters
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Yes
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Yes
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Power losses
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Power loss, typ.
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1.5 W
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2.5 W
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Digital inputs
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Number/binary inputs
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8
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16
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2
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4
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Input characteristic curve acc. to IEC 61131, Type 1
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Yes
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Yes
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Number of simultaneously controllable inputs
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8
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16
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8
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16
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8
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16
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8
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16
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Input voltage
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DC
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DC
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24 V
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24 V
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5 V DC at 1 mA
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5 V DC at 1 mA
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15 V DC at 2.5 mA
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15 V DC at 2.5 mA
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Input current
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- for signal "0", max. (permissible quiescent current)
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1 mA
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1 mA
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2.5 mA
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2.5 mA
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4 mA; Typical
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4 mA; Typical
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Input delay (for rated value of input voltage)
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Yes; 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms, selectable in groups of four
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Yes; 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms, selectable in groups of four
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Yes
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Yes
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Cable length
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- Cable length, shielded, max.
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500 m
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500 m
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- Cable length unshielded, max.
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300 m
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300 m
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Digital outputs
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Number/binary outputs
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0
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0
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Interrupts/diagnostics/status information
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Alarms
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Yes
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Yes
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Yes
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Yes
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Diagnostic messages
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Yes
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Yes
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Diagnostics indication LED
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Yes
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Yes
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Yes
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Yes
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- Status indicator digital input (green)
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Yes
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Yes
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Galvanic isolation
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Galvanic isolation digital inputs
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- between the channels, in groups of
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2
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4
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Degree and class of protection
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IP20
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Yes
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Yes
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Standards, approvals, certificates
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CE mark
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Yes
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Yes
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C-TICK
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Yes
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Yes
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FM approval
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Yes
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Yes
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Climatic and mechanical conditions for storage and transport
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Climatic conditions for storage and transport
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- Drop height, max. (in packaging)
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0.3 m; five times, in dispatch package
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0.3 m; five times, in dispatch package
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- Permissible temperature range
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-40 °C to +70 °C
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-40 °C to +70 °C
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- Air pressure acc. to IEC 60068-2-13
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1080 to 660 hPa
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1080 to 660 hPa
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Mechanical and climatic conditions during operation
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Climatic conditions in operation
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- Permissible temperature range
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0 °C to 55 °C horizontal installation 0 °C to 45 °C vertical installation
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0 °C to 55 °C horizontal installation 0 °C to 45 °C vertical installation
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- Permissible temperature change
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5°C to 55°C, 3°C / minute
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5°C to 55°C, 3°C / minute
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Connection method
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required front connector
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Yes
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Yes
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Mechanics/material
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Type of housing (front)
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Yes
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Yes
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Dimensions
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Width
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45 mm
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45 mm
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Height
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100 mm
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100 mm
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Depth
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75 mm
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75 mm
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Weight
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Weight, approx.
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170 g
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210 g
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 More information
手册
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http://www.siemens.com/simatic/printmaterial
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