HP 7550A Emulation [KC-GL] (Mode 8)
7-105
OS [Output Status]
This instruction returns an integer from 0 to 255 giving one byte of status information, as
follows:
status TERM
The following table describes the individual bits in the status byte. After powered up or
an IN instruction, bit positions 3 and 4 turn on making the bit value to be 24. Bit position
3 is cleared subsequently after delivering the status.
OT [Output carousel Type]
This instruction delivers information on the current carousel type and stall occupancy.
This may be used to determine those information in a remote location.
OT TERM
Response:
type, map TERM
The current carousel type and its pen map are delivered as 2 ASCII integers, each sepa-
rated by comma. The type field can contain the values –1 through 4, which have the fol-
lowing values:
Bit Position Bit Value Description
0 1 The pen is down.
1 2 P1 or P2 has been changed. This bit is cleared when actual P1 and
P2 values are read via the RS-232C interface, or when the IN
instruction is executed.
2 4 A digitized point is ready for output. This bit is cleared when the
point is output via the RS-232C interface, or when the IN instruc-
tion is executed.
3 8 Initialized. This bit is cleared when a status byte is output via the
RS-232C interface, or when the IN instruction is executed.
4 16 Ready to receive next data.
5 32 Error. This bit is cleared when an error number is output via the RS-
232C interface, or when the IN instruction is executed.
6 64 SRQ was set.
7 128 (Reserved)
Bit value when stall is occupied Pen stall
11
22
43
84
16 5
32 6
64 7
128 8
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