Specifications

Direct Data Interchange with the IP 240 IP 240
Write initial and final track values
To change the initial value and final value for a track, you must load these two values into the
transfer buffer and then load the job request register with either 1n
H
or 2n
H
(where n=number
of the track).
Table 11-5. Contents of the Transfer Buffer on Writing Initial
and Final Track Values, Position Decoding Mode
0000000SG
2 010
4
10
3
10
2
10
1
10
0
Bit
76543210
Description
0
1
Offset
transfer
buffer
Initial track value
3 0000000SG
Sign for initial value
SG=1 The initial value is negative.
SG=0 The initial value is positive.
8 to 14
7
Final track value
4
5
6 010
4
10
3
10
2
10
1
10
0
0 . . . 0 0 . . . 0
Sign for the final value
SG=1 The final value is negative.
SG=0 The final value is positive.
Write zero offset
To specify a zero offset (NVER), you must enter the zero offset value in the transfer buffer and
load the job request register with 19
H
or 29
H
.
Table 11-6. Contents of the Transfer Buffer on Writing a Zero Offset, Position Decoding Mode
0 . . . 0 0 . . . 0
2 010
4
10
3
10
2
10
1
10
0
Bit
76543210
Description
0
1
Offset
tranfer
buffer
Zero offset
3 0000000SG
Sign of the NVER
SG=1 The zero offset is negative.
SG=0 The zero offset is positive.
4 to 14
11-12 EWA 4NEB 811 6120-02a