Start Paper Tape Motion - Control Data 1700 Maintenance Manual

AOO - .- Ready
AOl - - Busy
A02 - - Interrupt
A03 - - Data
A05 - - Alarm
A06 - - Lost Data
A07 Protected
AOS - - Controller present
A09 - - Paper Mot. Fail.
AlO Power On
Table 3-2
P. T. Reader Status Codes
The paper tape reader must be loaded with tape before operation can begin.
Power is applied by pressing the READER POWER switch. The controller is made
ready for operation by pressing the READY/MASTER CLEAR switch on the reader.
The reader is now ready for operation. In this state Ready and Power On status
signals are available to the computer.
START PAPER TAPE MOTION
To start paper tape motion, the computer sends to the Paper Tape Reader a
function code having bit 05 a "1". This enters the controller logic at
3l-A16-20, causing the Start FF to set. With the setting of the Start FF, a
busy status is produced (3l-A15-22), and the Clutch FF set input is enabled.
The Clutch FF will set
i f
the condition (Lost Data) (Data Ready)
is
met. These
conditions are met following a clear controller since the Lost Data FF and the
Data Ready FF are cleared (page 29).
3-2