IS200VPROH1B备件模块
Sigl mon rm Sigl mon指的是Sigl中的一个点，它可以与其他Sigl循环中的对应点连接。它可能不接地。差分信号是在两个与电源分离但隔离的状态下测量的。差分输入允许在不影响精度的情况下对线路和接地进行更大程度的自由。信号电平和电源之间有一个限制电压额定值（参见mon Mode）。该限制也适用于同一电源上添加剂之间的电压差。差分输入通常以共享电源连接点的组为单位。某些电压有一个exrl返回或远程感测，允许负载mon或接地与sll电压的电源不同。电流回路信号是部件之间电压的敏感差异，参见遵从性。差分输入允许电流回路输入，因为sigl可以从mon偏移。不要将差分输入与隔离输入混淆；差分需要组的所有输入的mon连接点参考，通常是接地或电源mon。Alog Input Sysm High level s F Alog s August Controlr Data Sheet F Isolad Isolad输入通常为两个，并与电源和接地电气绝缘。有时提供额外的连接来激励传感器，如RTD，但这些信号不与其他点共享。隔离开关允许设备和之间存在高电压。不要将隔离输入与逻辑组之间的隔离或与系统其他部件（如逻辑或电源）的隔离混淆。rl模式这是差分信号或隔离信号的实际信号。这也包括作为电源线频率拾取器的无意识信号。mon模式这是模拟信号和差分信号电源的mon点之间的电压，如果是隔离信号，则为接地。理想的是，所有mon模式信号都由触发，但实际上数据中引入了一些错误。这被指定为共模抑制比CMRR，通常以分贝db表示。差分s也有一个mon模式电压规格，通常作为关于mon的电压。超过差分信号的共模电压额定值会导致数据转换中的大误差，并影响几个点。单极单极信号或范围在rl操作期间不改变极性；例如，电压或反向连接时，单色输入将产生最小值，并且如果诊断为有效的欠量程或开路故障。双极性双极性信号可以在操作中反转极性。反向信号连接双极输入将产生相反符号的数据。接地回路当导线在多个地方接地时，接地之间的差异会导致电流在中产生电压降。
Sigl mon The rm sigl mon refers a point in the sigl that y be connecd the corresponding points in other sigl loops. It y or y t be connecd earth ground. Differential Differential sigls are measured on two s whi are separa but t isolad from the power supply. Differential inputs allow a grear degree of freedom in wiring mons and grounds without affecting accuracy. There is a limid voltage rating see mon Mode between the sigl vel s and the power supply s. This limitation also applies voltage differences among additiol on the same supply. Differential inputs usually e in groups sharing the supply mon tie point. Some voltage s y have an exrl return or remo sense whi allows the load mon or ground be different than the supply of the by a sll voltage. Current loop sigls are ss susceptib differences in voltage between ponents see pliance. Differential inputs permit inputs with current loops since the sigl can be offset from mon. Do t confuse differential inputs with isolad inputs; differential requires the mon tie point reference for all inputs of the group usually either ground or the supply mon. Alog Input Sysm High vel s F Alog s August Controlr Data Sheet F Isolad Isolad inputs are usually two and are diectrically insulad from supplies and ground. Sometimes additiol connections are provided for excitation of transducers su as RTDs but these sigls are t shared with other points. Isolad s allow high voltages exist between devices and the . Do t confuse isolad inputs with the isolation between groups of alog s or isolation from other ponents of the sysm su as logic or power supplies. rl Mode This is the actual sigl across the sigl s of differential or isolad. This y also include unwand ise su as power line frequency pickup. mon Mode This is the voltage between the alog sigl s and the mon point of the power supply of a differential sigl or ground in the case of an isolad sigl. It is desirab that all mon mode sigls are igred by the but in practice there is some error introduced in the data. This is specified as mon Mode Rejection Ratio CMRR usually expressed in decibels db. Differential s also have a mon mode voltage specifications usually stad as a voltage with respect mon. Exceeding the mon mode voltage rating of differential sigls causes large errors in the data conversion and y affect several points. Unipolar Unipolar sigls or ranges do t ange polarity during rl operation; for examp volts or Reversed connection a unipolor input will produce minimum lue and if diagstics are ailab underrange or open faults. Bipolar Bipolar sigls can reverse polarity in operation. Reversed sigl connections a bipolar input will produce data of opposi sign. Ground Loop When a conducr is grounded in more than one place differences between grounds can induce currents producing voltage drops in the .
