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To set the print zone width to 10 characters, use the
command:
ZONE 10
To reset the print zone width during a BASIC program,
enter:
100 INPUT "DESIRED ZONE WIDTH? "; Z
110 ZONE Z
Terminal Mode
The PC-2 RS-232C Interface includes mach ine-Ianguage
smart terminal software in ROM. Operation of the PC-2
under this terminal software will be referred to as operat-
ing it in "terminal mode."
The PC-2 cannot operate in Terminal Mode unless there
are at least 570 bytes of free memory. If less than this
amount is available, ERROR 51 will be generated. Try
using CLEAR or NEW to free additional memory.
When operating in Terminal Mode, the
(BREAK)
(ON)
key is used to interrupt terminal operations and return to
the Terminal Menu display.
Entry to Terminal Mode Via BASIC
Terminal Mode is entered from BASIC by execution of
either the command TERMINAL or the command DTE.
Both place the PC-2 in Terminal Mode, but with slightly
different actions.
Essentially the only difference in the
two Terminal Mode access commands are that both
initiate different default RS-232C communications para-
meters.
36
The TERMINAL Command
To enter Terminal Mode via the TERMINAL command,
type TERMINAL
(ENTER)
.
When Terminal Mode is entered via the BASIC TER-
MINAL command, the following defaults are set for the
terminal software and RS-232C Interface:
•
Communications parameters are retained as last set
using SETCOM.
•
XON/XOF F protocol is ON.
•
Echo (display of keyboard input) is OFF (disabled).
•
Ext/long space keys are OFF (disabled).
The DTE Command
When Terminal Mode is entered using the BASIC DTE
command, the following default parameters are set for
the terminal software and RS-232C Interface:
•
Communications parameters are set to 300 Baud, 7 Bit
Words, Even Parity, and 1 Stop Bit.
•
XON/XOFF protocol is OFF.
•
Echo is ON (enabled).
•
Ext/long space keys are ON (enabled).
Terminal Mode Menus
When Terminal Mode is entered using either TERMINAL
or DTE, "---ENTER MENU SELECTION .. " will be
displayed briefly, followed by the Terminal Menu. The
Terminal Menu is one of four setup and control menus
available during Terminal operation.
The other three
menus are the SETUP, OPERATE, and PROTOCOL.
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