简述
基本单元07 KT 98的工作原理如下：
•分散自动化系统中的总线主机
控制器31或as
•分散自动化系统Advant Controller 31或as中的从机（远程处理器）
•独立基本单元。
基本单元由24 V DC供电。
2.2.1.1主要特征
•24个带LED显示屏的数字输入
•16个带LED显示屏的数字晶体管输出
•8个带LED显示屏的数字输入/输出
•8个可单独配置的模拟输入0。。。10伏，
0...5伏，±10伏，±5伏，0。。。20毫安，4。。。20毫安，差分
输入，Pt100（2线或3线），模拟输入为
也可单独配置为数字输入
•4个可单独配置的模拟输出±10 V，
0...20毫安，4。。。20毫安
•2个计数器，用于计算高达50 kHz的频率，可在7种不同的操作模式下配置
•1个用于系统扩展的CS31系统总线接口
•1个用于连接通信模块的接口
（例如07 KP 90）
•2个串行接口COM1、COM2
–作为MODBUS接口和
–用于编程和测试功能
–作为可自由编程的接口
•实时时钟
•用于显示操作条件和错误的LED
信息
•可拆卸螺钉式接线板
•通过螺钉或将设备卡在支架上进行紧固
DIN导轨
•锂电池07 LE 90可放入
电池箱，以便
–存储和备份额外需要的数据
包含在RAM中，例如
旗帜（保留）
–备份时间和日期（实时时钟）
•用于启动和中止程序执行的运行/停止开关
•广泛的诊断功能
–基本单元的自诊断
–诊断CS31系统总线和
连接模块
•用于存储程序和数据的集成闪存EPROM
•用户可更换智能媒体卡07 MC 90
用于更新操作系统或PLC程序的数据或
2.2.1.2项目规划/启动
在项目规划和实施过程中，必须遵守以下规定：
启动：
•编程
使用AC31编程软件执行，该软件
可在商用IBM兼容设备上运行
PCs（参见编程系统文档
907 AC 1131）。
•在线程序修改
可以快速修改用户程序
在不中断操作的情况下（参见编程
系统907 AC 1131）。
•可能的操作模式
–独立基本单元
-总线主基本单元
–从基本单元
•备份数据区域，
i、 e.可以在断电/通电期间保存数据
带有集成电池和/或
将其存储在闪存EPROM中。
•使用PROFIBUS DP接口时，项目规划的执行方式与07 KT相同

Brief description The basic unit 07 KT 98 works either as • bus master in the decentralized automation system Advant Controller 31 or as • slave (remote processor) in the decentralized automation system Advant Controller 31 or as • stand-alone basic unit. The basic unit is powered by 24 V DC. 2.2.1.1 Main features • 24 digital inputs with LED displays • 16 digital transistor outputs with LED displays • 8 digital inputs/outputs with LED displays • 8 individually configurable analog inputs 0...10 V, 0...5 V, ±10 V, ±5 V, 0...20 mA, 4...20 mA, differential inputs, Pt100 (2-wire or 3-wire), the analog inputs are also individually configurable as digital inputs • 4 individually configurable analog outputs ±10 V, 0...20 mA, 4...20 mA • 2 counters for counting frequencies up to 50 kHz, configurable in 7 different operating modes • 1 CS31 system bus interface for system expansion • 1 interface for connecting communication modules (e.g. 07 KP 90) • 2 serial interfaces COM1, COM2 – as MODBUS interfaces and – for programming and test functions – as freely programmable interfaces • Real-time clock • LEDs for displaying operating conditions and error messages • Detachable screw-type terminal blocks • Fastening by screws or by snapping the device onto a DIN rail • The lithium battery 07 LE 90 can be put into the battery compartment in order to – store and backup data which is additionally contained in the RAM, e.g. the status of flags (RETAIN) – backup the time and date (real-time clock) • RUN/STOP switch for starting and aborting the program execution • Extensive diagnosis functions – self-diagnosis of the basic unit – diagnosis of the CS31 system bus and the connected modules • Integrated Flash EPROM for storing program and data • Exchangeable SmartMedia Card 07 MC 90 for user data or for updating the operating system or PLC program 2.2.1.2 Project planning / start-up The following has to be observed for project planning and start-up: • Programming is performed with AC31 programming software, which can be run on commercially available IBM compatible PCs (see documentation of the programming system 907 AC 1131). • Online program modification A quick modification of the user program is possible without interrupting the operation (see programming system 907 AC 1131). • Possible operating modes – Stand-alone basic unit – Bus master basic unit – Slave basic unit • Backup of data areas, i.e. saving of data during power OFF/ON, is possible with an integrated battery and/or by storing them in the Flash EPROM. • When using the PROFIBUS DP interface, project planning is performed in the same way as with 07 KT