Rockwell Automation 8520-9API 9/Series OCI API Developer's Guide - Manual (Page 172)

6–4 Array Indices and Strings
Publication 8520-6.6 - August 1999
COM_MODE enumeration
Used for the I/O monitor diagnostic screen. Use this enumeration to
specify that the I/O monitor will transmit or receive data.
Enumeration Result:
0 Transmit
1 Receive
Important: Enumeration does not apply to the 9/PC CNC.
COPY_MEM_TO_PORTA/B (copy to type) enumeration
Use this enumeration to identify the copy type to be performed from
memory.
Enumeration Result:
0 Test Mode
1 Punch file
2 Multi punch
3 Punch next file
4 Punch all
5 Finish punch
Important: Enumeration does not apply to the 9/PC CNC.
COPY_PORTA/B_TO_MEM (copy from type) enumeration
Use this enumeration to identify the copy type to be performed from
port.
Enumeration Result:
0 Test Mode
1 Input from reader
2 Multi reader input
3 Input next file
Important: Enumeration does not apply to the 9/PC CNC.