YOKOGAWA CP451-51输出模块,CP451-51英文使用说明
如通道1所述，编辑范围、低报警限和高报警限。所有活动通道可以以这种方式更改。按ENT键或返回初始显示屏按← 键，直到显示初始屏幕。保存的配置包含16通道模拟电流输入模块的配置可以保存到EEPROM或MEM卡，稍后读入CPU。MEM卡和EEPROM包含这些配置的内容可以读入任何版本4或更高版本的CPU。请参阅第章有关保存和恢复操作。
YOKOGAWA CP451-51输出模块从用户设备连接到此模块是为了在可拆卸的安装在模块前部的20端子连接器块。实际使用的端子为如下表所述，并在以下接线图中显示。端子分配16通道模拟电流输入上20端子输入/输出连接器的引脚分配模块如下表所示。90-30系列可编程逻辑的2通道模拟电压输出模块控制器提供两个输出通道，每个通道能够转换13位二进制（数字）数据连接到模拟输出，以便根据应用程序的需要使用。模拟电压输出模块为能够提供-10至+10伏范围内的输出。转换信号的分辨率为12位二进制加号，有效为13位（8192中的1部分）。两个频道都在每次扫描（约5毫秒）。%AQ寄存器中的用户数据是16位2的补码总体安排%AQ寄存器中的13个最高有效位通过以下方式转换为符号幅度：PLC并发送至模块，供D/A转换器电路使用。13的位置转换为符号幅度的位如下所示。电压输出和
D/A转换器的数据如图3-30所示。
Edit the range, and low and high alarm limits as described for Channel 1. All active channels
can be changed in this manner. Return to the initial display screen by pressing the ENT key or
by pressing the ← key until the initial screen is displayed.
Saved Configurations
Configurations that contain a 16-Channel Analog Current Input module can be saved to an
EEPROM or MEM card and read into the CPU at a later time. MEM cards and EEPROMs
containing these configurations can be read into any Release 4 or later CPU. Refer to Chapter
2 of the Hand-Held Programmer User’s Manual for detailed information on the Save and
Restore operations.Connections to this module from user devices are made to screw terminals on a removable
20-terminal connector block mounted on the front of the module. The actual terminals used are
described in the following table and are shown in the following wiring diagrams.
Terminal Assignments
Pin assignments for the 20 terminal I/O connector on the 16-Channel Analog Current Input
module are as shown in the following table.The 2-Channel Analog Voltage Output module for the Series 90-30 Programmable Logic
Controller provides two output channels, each capable of converting 13 bits of binary (digital) data
to an analog output for use as required by your application. The Analog Voltage Output module is
capable of providing outputs in the range of –10 to +10 volts. Resolution of the converted signal is
12 bits binary plus sign which is effectively 13 bits (1 part in 8192). Both channels are updated on
