Roland CAMM-1 PNC-1610 User Manual page 37

Instruction Format
ESC .I [ESC].I<P1>;<P2>;
Set Xon/Xoff <P3> ;••••••••;<P12>:
Handshake and
ENQ/ACK Handshake
Mode2
ESC .P [ESC].Pn:
Select Handshake
Status Instructions
ESC .A [ESC].A:
Output Model Name
ESC .O [ESC].O:
Output Status Word
Parameter Range
P1:Limit of the remaining 0—15358(byte) [80(byte)]
buffer capacity (for Xon/Xoff)
The number of data block bytes
(for ENQ/ACK (mode2))
P2:ENQ character [0(Sets nothing)]
(for ENQ/ACK (mode2))
0(for Xon/Xoff)
P3—P12 [All 0(Sets nothing)]
:Xon character(for Xon/Xoff)
ACK character
(for ENQ/ACK (mode2))
n :Handshake type 0—3
None
None
29
([ ] is default)
Used for performing the Xon/Xoff handshake and
the ENQ/ACK handshake mode 2.
The [ESC].I instruction with no parameter performs
a dummy handshake. In a dummy handshake, al-
ways returns the ACK character to the host com-
puter, regardless of the remaining buffer capacity,
when receiving the ENQ character.
[0] Sets the type of handshake used.
The types of handshakes corresponding to the para-
meters 0 to 3 and the setting combinations of their
equivalent device control instructions are as
follows:
When receiving this instruction, returns the follow-
ing numerals to the host computer.
1610
Outputs the decimal value that represents the status
of a plotter. This value is the sum of bits shown in
the table below.
Bit Bit
N o . value
0 1
1 2
2 4
3 8
4 16
5 32
6, 7 64, 128
8 256
9 512
10—15
Explanation
n Handshake
0 ENQ/ACK (dummy)
1 Xon/Xoff
2 ENQ/ACK (mode 2)
3 Hardwire
Decimal Meaning
value
Unused (Always 0)
0 Still does not draw.
1 Already drew.
Unused (Always 0)
0 Data exist in I/O buffer
8 No data exists in I/O
buffer
0 Pause OFF
16 Pause ON
32 Unused (Always 0)
Unused (Always 0)
256 Always ON (256)
0 WD, or [ESC]. O
instruction was executed.
512 A function key was
pressed in the Keyboard
Mode.
Unused (Always 0)