BASEstar^tm Open DAS
for Allen-Bradley Data Highway^tm
on OpenVMS^tm
Installation and User's Guide

Figure 3-32 shows the structure of a legal I/O data table address for the PLC-5/250.

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

Figure 3-32 PLC-5 / 250 I/O Address Format

Table 3-20 Example PLC-5 / 250 I/O Addresses

Example Address	MMS Type1	Description
I:20	UNSIGNED_16	Input image rack 2 group 0 octal
I:277	INTEGER_16	Input image rack 27 group 7 octal
I:177/17	BIT_STRING	Bit 17 of rack 17 group 7 octal
$O:77/1	BIT_STRING	Bit 1 of rack 7 group 7 octal
I:0	Array of 10 UNSIGNED_16	Ten words beginning at rack 0 group 0