IBM 1620 Manual Of Instruction page 8

(paper-up motion) direction, raise pen. The plotter
result is shown in Figure 1-4.
In the foregoing example, the 1620 will interlock
(wait for the plotter). The duration is approximately
Start
tv\otion during time
pen was raised.
1/100"
T
Figure 1-4. Plotter Result for Data of
05555922077779=1:
227-5811-0 (11-63)
330 ms with the 1627 Modell Plotter or "350 ms with
the 1627 Model 2. Timing is computed as shown in
Table 2.
Table 2. Timing
Output Record 1627-1 1627-2
Characters Plotting Time
Plotting Time
0 100
ms
100
ms
5555
13
20
9 100 100
22 7
10
0 100 100
7777 13
20
9 0.3* ms 0.3*
ms
333.3
ms
350.3 ms
*
Approxi mately
99.7 ms
are ava ilable for
1620
processing before
the
1627
can act on another plotting instruction.
1.3