产品内容介绍
DEIF GPU/2/GS船舶控制器
B846-001电压模拟多路复用器（MUX）和B846-002电流的特性
模拟多路复用器（MUX）输入模块接受16个模拟信号并连接一个多路传输信号至模块的输出端子。
16位的值分配给模块的离散输出（线圈）或寄存器决定了哪个输入信号连接到输出。
B846接收来自PLC的命令，该命令告诉模块哪个模拟连接到输出端子的通道。
此通信通过以下方式完成输出寄存器（4x），在通信量覆盖I/O系统时指定。
这个输出寄存器的值指示选择哪个通道。B846的每个通道都有一个高可靠性DPST簧片继电器。
该模块是每次扫描PLC时更新，切换输出在10内稳定毫秒。继电器触点保证在10毫秒内响应，包括诊断。
每个单独的输入通道可以用可用的250欧姆精度接线电阻器。
当B846输出连接至1-5V模拟输入。
模块挡板上的指示灯用于识别由控制器。
16个输入通道的编号从0到15。
通信故障时，所有输出关闭。关闭发生在300毫秒的信号丢失。
模块的ACTIVE指示灯也将关闭。
B846模块可以插入800系列I/O结构中的任何位置。模块很容易滑入外壳，不会与其他任何模块发生干涉模块的操作。
可选的机械键控系统可用于匹配模块类型，在外壳上有一个特殊的插槽，以确保正确的模块替换用户连接到标准螺钉端子排。
这个刚性布线系统允许在不干扰布线的情况下插入或移除模块。
模块的保护外壳屏蔽了逻辑电路的任何电气干扰，并将用户耦合任何噪声的可能性降至最低将电路侧连接至相邻模块。
当模块插入外壳。此低阻抗接地源用户连接至标准螺钉端子板；和刚性接线系统允许模块插入或移除，而不会干扰接线。
提到下图显示了端子编号和输入连接。
接头AS-8535-000从外壳的底板。
aracteristics
Both the B846-001 Voltage Analog Multiplexer (MUX) and the B846-002 Current Analog Multiplexer (MUX) input modules accept 16 analog signals and connect one multiplexed signal to the output terminals of the module. The value of a 16-bit discrete output (coil) or register assigned to the module determines which input signal is connected to the output. The B846’s receive a command from a PLC that tells the module which analog channel to connect to the output terminals. This communication is accomplished via an output register (4x), which is specified when traffic-copping the I/O system. The value of the output register dictates which channel is selected.Each channel of the B846 has a high reliability DPST reed relay. The module is updated with every scan of the PLC, and the switched output is stable within ten milliseconds. The relay contacts are guaranteed to respond within 10 mS including diagnostics. Each individual input channel may be wired with available 250 Ohm precision resistors. Wiring allows continuous 4-20mA current loop operation when the B846 output is connected to a 1-5V analog input. Indicators on the module’s bezel identify the input channel being enabled by the controller. The sixteen input channels are numbered from 0 to 15. All outputs shut OFF in the event of a communications failure. Shut-off occurs within 300 ms of the signal loss. The module’s ACTIVE indicator will also shut OFF.
The B846 module can be inserted
into any location in the 800 Series I/O structure. The module slides easily into the housing and does not interfere with any other module’s operation. An optional mechanical keying system can be used to match the module type with a particular slot in the housing to ensure proper module replacement. User connections are made to a standard screw terminal strip. The rigid wiring system permits module insertion or removal without disturbing the wiring. The module’s protective case shields the logic circuitry from any electrical interference and minimizes the possibility of any noise being coupled from the user side of the circuitry to adjacent modules. A ground is automatically established when the module is inserted into the housing. This low impedance earth ground originates from the housing’s backplane.User connections are made to a standard screw terminal strip; and the rigid wiring system permits module insertion or removal, without disturbing the wiring. Refer to the following figure for terminal numbering and input connections. Connector AS-8535-000
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