User guide

119 | P a g e
After entering the last character in a user input field, or when a n attempt is made to move the
cursor to another field, the value in the field in checked for validity (e.g., a numeric field must
contain a numeric value). If the value is not valid, the cursor remains in the field along with the
last valid value, an error message is displayed, and the terminal "bell" is sounded. The bell is also
sounded if an attempt is made to move the cursor in a manner that is not allowed.
The function keys labeled at the bottom of the screen may be used to perform the indicated
function. The function key number is included with each label; the label is approximately positioned
over the corresponding key on an H/Z-19 terminal.
The Function: user input field occurs on all screens and has a special meaning. If a numeric value
other than zero is entered in this field and the cursor is then moved to another field, the action
taken is the same as if the function key with the same number as the field value had been keyed.
This feature is useful for CRT terminals without function keys.
The Sense/EOC data: status field appears on all screens. It contains information from the XEBEC
controller regarding any error conditions detected during the last command sent to the controller.
If an error occurs, the sense and ECC burst error length data is decoded and an appropriate
error message is displayed.
The Exit prog function key (#7) is provided on this screen and screen #2 (the main screen); it
returns control to the operating system.
The Port:, Drive: and Controller: user input fields must be correct for the installed SASI interface
board, XEBEC controller, and hard disk drive before using either of the following function keys.
For single Winchester systems both the drive and controller number will be zero (0).
The Check cntlr function key (#5) is provided on all screens; it verifies proper operation of the
XEBEC controller by sending diagnostic commands to the controller. The disk drive is not
accessed. This should be chosen when first setting up the system to be certa in connections to
Xebec from Host adapter and all operations are correct. It should also be chosen when the
system develops any problems to help isolate the trouble.
The Read table function key (#6) is provided on this screen and screen #2 (the main screen); it
attempts to read initialization data and the partition table from the boot track on the hard disk,
and then accesses screen #2 (the main screen).