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Basic Operating Procedure Section 1-9
With a Serial Communications Board, the following words are always allo-
cated.
Installing the Board or
Unit
Serial Communications Board (CS Series Only)
1,2,3... 1. Press in the lever on the Inner Board installation cover, first on the top and
then on the bottom, and remove the cover.
First word in Setup Area allocated in DM Area:
m = D30000 + 100 × unit number
(20 words are used beginning from m,
10 words for each port)
First word allocated in the CIO Area:
n = CIO 1500 + 25 × unit number
(all words are used beginning with n)
Unit No. Words Unit No. Words
Unit No. 0 D30000 to D30099 Unit No. 0 CIO 1500 to CIO 1524
Unit No. 1 D30100 to D30199 Unit No. 1 CIO 1525 to CIO 1549
Unit No. 2 D30200 to D30299 Unit No. 2 CIO 1550 to CIO 1574
Unit No. 3 D30300 to D30399 Unit No. 3 CIO 1575 to CIO 1599
Unit No. 4 D30400 to D30499 Unit No. 4 CIO 1600 to CIO 1624
Unit No. 5 D30500 to D30599 Unit No. 5 CIO 1625 to CIO 1649
Unit No. 6 D30600 to D30699 Unit No. 6 CIO 1650 to CIO 1674
Unit No. 7 D30700 to D30799 Unit No. 7 CIO 1675 to CIO 1699
Unit No. 8 D30800 to D30899 Unit No. 8 CIO 1700 to CIO 1724
Unit No. 9 D30900 to D30999 Unit No. 9 CIO 1725 to CIO 1749
Unit No. A D31000 to D31099 Unit No. A CIO 1750 to CIO 1774
Unit No. B D31100 to D31199 Unit No. B CIO 1775 to CIO 1799
Unit No. C D31200 to D31299 Unit No. C CIO 1800 to CIO 1824
Unit No. D D31300 to D31399 Unit No. D CIO 1825 to CIO 1849
Unit No. E D31400 to D31499 Unit No. E CIO 1850 to CIO 1874
Unit No. F D31500 to D31599 Unit No. F CIO 1875 to CIO 1899
Setup Area in the DM Area:
D32000 to D32767
Words allocated in the CIO Area:
CIO 1900 to CIO 1999
D32000 to D32009 Port 1 Setup Area CIO 1900 Software switch
D32010 to D32019 Port 2 Setup Area CIO 1901 to CIO 1904 Board status
D32020 to D32767 Reserved for the system CIO 1905 to CIO 1914 Port 1 status
CIO 1915 to CIO 1924 Port 2 status
CIO 1925 to CIO 1999 Reserved for the system
Press in the lever on the top. Press in the lever on the bottom.