Allen-Bradley A-B QUALITY DL20 Series User Manual page 95

Using Data Recorders
Verifying Tapes
Always use the verify after writing a tape or if you question the readability of
a tape. Verify performs a checksum on the tape data and compares that
checksum with the checksum stored on the tape. If the checksums don't
match, the tape fails verification. The data does not have to match the data
stored in the DL20. The DL20 displays the results of the operation.
Using Allen-Bradley Data Recorders
Note: See Appendix B for setup and operating instructions.
If you are using an Allen-Bradley Data Recorder (Catalog No. 1770-SA or
-SB), you will need a special cable (Catalog No. 2706-NC4). This cable has
a three position toggle switch (Record / Off / Play).
The DL20 prompts you through the tape operation. If you are writing to
tape, you have 15 seconds to unplug the programming terminal, plug in the
data recorder, press Record on Tape, and place the toggle switch to Record.
The display counts down the time.
Using STR-Link II and III Data Recorders
Note: See Appendix B for setup and operating instructions.
After selecting one of the tape operations, you will be prompted:
PRESS REMOTE CONTROL
Load the tape and press the REMOTE button on the data recorder. Press
[Return] and the tape will rewind. After rewinding, the taping begins. The
DL20 displays the status of the tape operation. Press [Esc] to return to the
main menu.
Chapter 8
Special Functions
LOAD TAPE - HIT <CR>
8–7