| 详细介绍：
6ES7 221-3BD30-0XB0 西门子S7-1200PLC数字量信号板 上海黎西机电设备有限公司 上海代理商
产品品牌：SIEMENS西门子
产品产地：德国原装进口
产品名称：西门子S7-1200PLC数字量信号板
产品型号：6ES7 221-3BD30-0XB0
产品参数：SIMATIC S7-1200, SB1221 数字量信号板模块,支持24V DC输入信号,4输入 24V DC ,最高频率200KHZ
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数字量输入作为 SIMATIC S7-1200 CPU 的集成 I/O 的补充
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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。
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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。
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CPU 的安装尺寸保持不变。
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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
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Order number
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6ES7221-3AD30-0XB0
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6ES7221-3BD30-0XB0
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SIGNAL BOARD SB 1221, 4 DI 5VDC 200KHZ
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SIGNAL BOARD SB 1221, 4 DI 24VDC 200KHZ
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Product type designation
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Input current
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from backplane bus 5 V DC, typ.
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50 mA
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50 mA
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Output voltage
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Power supply to the transmitters
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4 mA; per channel
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4 mA; per channel
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Power loss
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Power loss, typ.
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1 W
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1 W
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Digital inputs
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Number of digital inputs
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4; Current-sourcing
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4; Current-sourcing
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1
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1
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Input characteristic curve in accordance with IEC 61131, type 1
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Yes
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Input characteristic curve in accordance with IEC 61131, type 2
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Yes
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Number of simultaneously controllable inputs
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all mounting positions
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4
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4
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Input voltage
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DC
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DC
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5 V
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24 V
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0 to 1 V
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0 to 5 V
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2 to 6 V
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+15 to +30V
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Input current
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3 mA
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2 mA
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6 mA
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5.8 mA
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14 mA
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Input delay (for rated value of input voltage)
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for standard inputs
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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
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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
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2 µs
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2.5 µs
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for interrupt inputs
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Yes
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Yes
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for counter/technological functions
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Yes
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Yes
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Cable length
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50 m; shielded, twisted pair
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50 m; Standard input: 500 m, high-speed counters: 50 m
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Digital outputs
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Number of digital outputs
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0
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0
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short-circuit protection
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No
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No
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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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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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Degree and class of protection
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Degree of protection acc. to EN 60529
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Yes
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Yes
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Ambient conditions
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Free fall
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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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Ambient temperature during operation
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0 °C to 55 °C horizontal installation, 0 °C to 45 °C vertical installation
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-20 °C to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting, 95% humidity, non-condensing
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0 °C
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-20 °C
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55 °C
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60 °C
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