# BASEstartm Open DAS
for Allen-Bradley Data Highwaytm
on OpenVMStm
Installation and User's Guide

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Figure 3-38 shows the structure of a legal Internal Storage data table address for the PLC-5/250.

Table 3-24 shows examples of legal Internal Storage data table addresses for the PLC-5/250.

Figure 3-38 PLC-5 / 250 Internal Storage Address Format

Table 3-24 Example PLC-5 / 250 Internal Storage Addresses
Example Address | MMS Type1 | Description
--- | --- | ---
IS:20 | UNSIGNED_16 | Word 20 in remote scanner 1
IS:12 | INTEGER_16 | Word 12 in remote scanner 1
$IS:203/10 | BIT_STRING | Bit 10 octal of word 203 octal in remote scanner 2
IS:0 | Array of 10 UNSIGNED_16 | Ten words beginning at word 0 in remote scanner 1

1Arrays are supported. Structures are not supported. Variable size arrays are not supported.

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