基本单元     PCD2.M110       PCD2.M120       PCD2.M150  
安装方法     表面安装        表面安装        表面安装 
            (DIN 导轨)      (DIN 导轨)      (DIN 导轨) 
I/O点数或      128             255             255 
模块插槽        8              16               16
扩展单元连接器  no             yes              yes   
位处理时间      4 µs           4 µs             2 µs 
 通信接口       1-2            1-4              1-4   
网络连接       SAIA®S-BUS   SAIA®S-BUS         SAIA®S-BUS 
                             PROFIBUS FMS       PROFIBUS FMS
                             PROFIBUS DP        PROFIBUS DP
                             LON WORKS®         LON WORKS®   
显示器插槽      yes             yes                yes   用户存储器       32 kB          128 kB            128 kB  
 标准 RAM 配置  up to 536 kB    up to 640 kB    up to 640 kB 
+ expansion 
(RAM, EPROM 
Flash EPROM)
实时时钟          yes             yes                yes 保持数据和     用锂电池保持       用锂电池保持       用锂电池保持
实时时钟           1-3 年          1-3 年             1-3 年 中断输入或          no             2                   2
快速计数           - 2            1kHz                 1kHz
电源               24 VDC          24 VDC              24 VDC