Rockwell Automation 8520-9API 9/Series OCI API Developer's Guide - Manual (Page 76)

4–28 OCI Data Server Data Items
Publication 8520-6.6 - August 1999
The port_id index must always be used with this data item. You can
not use this index to access more than one port per request. Data for
this item is enumerated as follows:
This Value: Indicates/Selects
0 No (disabled)
1 Yes (enabled)
2 N/A
For example assigning a value of 1 to the following item:
PORT_REWIND_ON_M99, 2
enables this feature for port B. The N/A enumeration is only
available for tape devices that do not support this feature. Non-tape
devices do not have this feature and will return an error if you
attempt to read or write this data item.
PORT_PERCENT_SELECTION, port_id
Data Type
INT (enumerated)
Read/Write Read/Write
Array Index port_id
Control Type Lathe/Mill/Grinder
This item is used to read/enable/disable the % sign as a valid end of
program character for a tape. This feature is used for tape or
intelligent devices. Refer to your operations and programming
manual for details on using this feature. The index port_id
identifies the port as follows:
1 – port A
2 – port B
The port_id index must always be used with this data item. You can
not use this index to access more than one port per request. Data for
this item is enumerated as follows:
This Value: Indicates/Selects
0 No (disabled)
1 Yes (enabled)
2 N/A
For example assigning a value of 1 to the following item:
PORT_PERCENT_SELECTION, 2
enables this feature for port B. The N/A enumeration is only
available for tape devices that do not support this feature. Non-tape
devices do not have this feature.