# BASEstartm Open DAS
for Allen-Bradley Data Highwaytm
on Tru64tm UNIX
Installation and User's Guide

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Figure 3-33 shows the structure of a legal Block-Transfer data table address for the PLC-5/250.

Table 3-20 shows examples of legal Block-Transfer data table addresses for the PLC-5/250.

Figure 3-33 PLC-5 / 250 Block-Transfer Data Address Format

Table 3-21 Example PLC-5 / 250 Block-Transfer Data Addresses
Example Address | MMS Type1 | Description
--- | --- | ---
1BTD0:20 | UNSIGNED_16 | Word 20 of file 0 in remote scanner 1
1BTD2:12 | INTEGER_16 | Word 12 of file 2 in remote scanner 1
$2BTD30:125/1 | BIT_STRING | Bit 1 of word 125 of file 30 in remote scanner 2
1BTD0:0 | Array of 10 UNSIGNED_16 | Ten words beginning at word 0 of file 0 in remote scanner 1

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

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