BASEstar^tm Open DAS
for Allen-Bradley Data Highway^tm
on Tru64^tm UNIX
Installation and User's Guide

Figure 3-36 shows the structure of a legal Adapter Status data table address for the PLC-5/250. Figure 3-37 shows a PLC-5/250 Adapter Status structure.

Table 3-23 shows examples of legal Adapter Status data table addresses for the PLC-5/250.

Figure 3-36 PLC-5 / 250 Adapter Status Address Format

Figure 3-37 PLC-5 / 250 Adapter Status Structure

Table 3-23 Example PLC-5 / 250 Adapter Status Addresses
Example Address MMS Type¹ Description

AS01:1.RC UNSIGNED_16 I/O rack 1, group 1, remote scanner 1 retry count

AS10:0.OI BIT_STRING ² I/O rack 10, group 0, remote scanner 1 output inhibit

$AS27:1 Structure ³

UNSIGNED_16
UNSIGNED_16 All of adapter status for I/O rack 27
group 1, remote scanner 3
Control bits
Retry count

**Table 3-23 Example PLC-5 / 250 Adapter Status Addresses**
Example Address	MMS Type¹	Description
AS01:1.RC	UNSIGNED_16	I/O rack 1, group 1, remote scanner 1 retry count
AS10:0.OI	BIT_STRING ²	I/O rack 10, group 0, remote scanner 1 output inhibit
$AS27:1	Structure ³ UNSIGNED_16 UNSIGNED_16	All of adapter status for I/O rack 27 group 1, remote scanner 3 Control bits Retry count

¹Arrays are not supported for structures other than ASCII strings.
²Control bits should be treated as read only and modified only under PLC program control. Modifying these bits from a computer can give unpredictable results.
³Write operations are not allowed to Adapter Status structures.

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

BASEstar^tm Open DAS
for Allen-Bradley Data Highway^tm
on Tru64^tm UNIX
Installation and User's Guide