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16-10-200716-10-2007
APPENDIX H
(TELETYPE)
The TT command gives an operator direct control of various Brewer functions by allowing low level
commands to be sent directly from the Computer keyboard. With this feature, most useful as a
troubleshooting tool, all motors can be moved, lamps turned on, and data sampled.
This command is useful only when the Brewer and Computer are communicating, and is sent from
the Main Menu with the command, TT.
A printed copy of all transactions can be preserved if the printer has previously been turned on with
the PN command, and a printout is requested after launching TelyType command.
Command Level
A command string consists of zero or more commands separated by semicolons, optionally
followed by the A "command", and sent with 'Enter'.
Examples of TT commands:
B,2
M,1,0
R,0,7,10;O;A
When executing a command string, the Brewer executes each command set in turn.
Commands within a command set are executed concurrently. The command set is assumed
to have ended when the first command in the set has ended, even if other commands in the
set are still executing. Any commands which generate output transmit that output in
accordance to the rules of the low level protocol in effect.
Command strings terminating in the A "command" get repeated indefinitely. In the case of
the computer interface low level protocol, an ESC command is required to terminate
execution; in the case of the TTY low level protocol a break must be sent.
The following sections identify the various commands. Commands with single character
opcodes constitute the commands supported by the COSMAC based Brewers. They are
augmented by a number of commands supported only by later versions of the Brewer. These
newer commands have multicharacter opcodes and provide functions specific to newer
electronics or provide more natural commands for functions supported by the COSMAC
based Brewers.
A number of the commands listed below are used only for diagnostics and are not nornally used in
day to day operations, but are included for completeness. The commnds in more common use are
marked by **.
Turn the the mercury lamp and/or the standard lamp on or off. This command requires
configuration variables.
1. ** B
Syntax
Parameters
APPENDIX G COMPUTER / BREWER INTERFACE (TELETYPE)
COMPUTER
- turn on the Quartz Halogen Lamp
- move the Zenith Prism to the 0 (Lamps) position
- run the shutter from position 0 to 7 a total of 10 times,
- output the resulting counts, and
- repeat until interrupted by "HOME"
B, <mask>
The parameter <mask> takes one of four values or an error is logged:
<mask>
standard lamp
state
0
off
1
off
2
on
3
on
MKIV OPERATOR'S MANUAL
/
BREWER
Mercury lamp state
Off
On
Off
On
INTERFACE
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