西门子6ES7421-1BL01-0AA0

西门子6ES7421-1BL01-0AA0    数字量输入模板用来实现PLC与数字量过程信号的连接。使用于连接标准开关和两线制接近开关 (BERO)。

 

数字量输入模块把从过程发送来的外部数字信号电平转换成S7-400内部信号电平。

（西门子核心分销商）专业销售西门子S7-200/300/400/1200/1500PLC、数控系统、变频器、人机界面、触摸屏、伺服、电机、西门子通讯电缆、现场总线、DP接头、工控机等，并可提供西门子维修服务，欢迎来电垂询。

  
 
SIEMENS中国有限公司
联 系  人：张柏（销售经理）

企业在线：254598303  

移动手机：13817011145

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数字量输入模块具有以下机械特点：

设计紧凑：
坚固的塑料机壳里包括： 绿色 LED 指示输入端的信号状态 对于具有诊断和过程中断的模板来说，红色 LED 用来指示内部和外部错误/故障 标签条 安装简单 用户友好的接线：
通过插入式前连接器来对模块接线。

6ES7421-1BL01-0AA0

SIMATIC S7-400，SM421数字量输入模块， 光隔离，32DI，24V DC

 

6ES7421-1EL00-0AA0

SIMATIC S7-400，SM421数字量输入模块， 32DI，120V DC/AC

 

6ES7421-1FH20-0AA0

SIMATIC S7-400，SM421数字量输入模块， 光隔离，16DI，120/230V UC， IEC1131-2 TYPE 2

 

6ES7421-7BH01-0AB0

SIMATIC S7-400，SM421数字量输入模块， 电隔离，16DI，24V DC，带0.05 ms输入延迟，报警，诊断功能

 

6ES7421-7DH00-0AB0

SIMATIC S7-400，SM421数字量输入模块， 光隔离，16DI，24-60V C，报警，诊断功能

 

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