Unitek Miyachi LW250 Operation, Maintenance And Service Manual page 124

APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
NOTES FOR LW250 EXTERNAL COMMUNICATIONS CHART
Control Code in Hexadecimal:
ACK: 06H NAK: 15H
STX: 02H ETX: 03H
Definitions:
BCC: Block Check Code
STX: Horizontal even parity ON and 1 byte at ETX except STX.
CH1 = System No. 10 digit
CH0 = System No. 1 digit
DT1 = Data No. 10 digit
E1 = Abnormality No. 10 digit (Transmit all abnormality numbers. When no abnormalities, E1
and E0 = 0.)
E0 = Abnormality No. 1 digit
s1 = HV s2 = Laser Diode s3 = Main Shutter s4 = Branch Shutter 1
s5 = Branch Shutter 2
s8 = Branch Shutter 5
rdy = Ready Condition (Read only. Turns on when laser start is possible.)
Status (0 = Off, 1 = On):
cnt = Control Mode (0: Panel Control, 1: External Control, 2: Communication Line Control,
3: Maintenance Mode)
990-605 REV B: May, 1997
SH1 = Schedule No. 10 digit
SH0 = Schedule No. 1 digit
DT0 = Data No. 1 digit
s6 = Branch Shutter 3 s7 = Branch Shutter 4
s9 = Branch Shutter 6 s10= Laser Diode Modulation
LW250 PULSED Nd: YAG LASER
B-31