西門子代理商-重慶一級代理-PLC伺服電機驅動變頻器代理

由手冊可以知道，EIP21單元反饋給CPU的單元狀態，通信狀態字為n+10至n+14

n的值為PLC IO表設置該EIP單元的起始地址

例如紅框的這個EIP21單元反饋給CPU的單元狀態，通信狀態字位1525+10=1535.00--1539.15

The various kinds of data are stored in the allocated CIO Area words, which

are identified by the offset from the beginning word (n) allocated to each Unit.

There are two patterns for the layout of the allocated CIO Area words: the

default settings and user settings. The layout can be selected in the Status

Area settings in the Edit Parameters Dialog Box from the CX-Programmer.

To set a customer areas, select User defined for the Layout Type on the Status

Area Tab Page.

The beginning word n is calculated by the following equation:

Beginning word n = CIO 1500 + (25 × unit number)

以下為每個狀態字的每個bit的詳細解釋

以下是（n+10）狀態字具體Bit的詳細解釋

（n+10）.00----設備發生錯誤 （n+10）.01----網絡發生錯誤

（n+10）.06----IP 地址重復錯誤 （n+10）.09----鏈路關閉錯誤

（n+10）.14----狀態區域布局

我們可以通過查看EIP單元的手冊知道剩余的狀態字相應Bit的具體解釋

這樣我們就可以在PLC程序中讀取相應的bit來判斷該EIP單元的狀態了