System Remote Control (Src); Command Entry In Src - Data I/O 298 Manual

3.9.2
SYSTEM REMOTE CONTROL
The programmer's System Remote Control (SRC) capability
allows you control of the programmer's operation from a
terminai. Once the controlling terminal has been pmperly
interfaced to the programmer (see section 2), select
function FB (Port Enable) must be manually entered from
the keyboard to enable SRC.
Command Protocol
The syntax for SRC is similiar to that of the front panel
manual operations, using the source/ destination syntax
method described in section 3.5. When keying in
commands from a terminal, the programmer recognizes the
first two characters of each word (except REVIEW), as
shown in table 3-13.
Table
3-13.
Command Entry in SRC
KEYBOARD REMOTE CONTROL
COMMAND COMMAND
Copy
CO(SP)
Verify
VEiSPJ
Select
SE(SPl
Edit
ED(SP)
Device
DE(SP)
RAM
RA(SP)
Port
PO(SP)
l
Revie-vv
I
The space bar [denoted by the letters (SP) as shown in
table 3-13] is used after the command as a delimiter,
setting the boundaries for that command. The programmer
will not define the characters input until the space bar is
entered. And, since the programmer only recognizes the
first two characters, some variations are possible. For
example; the command COPY from DEVICE address
(XXXX) for block size of (YYYY) to RAM address
(ZZZZ)
can be written with the same result in either of the
following ways:
CO(SP)DE(SP)XXXX(SP)YYYY(SP)TO(SP)RA(SP)ZZZZ(CR)
COPY(SP)DEVICE(SP)XXXX(SP)YYYY(SP)TQ(SP)RAM(SP)
ZZZZ(CR)
NOTE
The word 11 TO" must be keyed in before
the destination when entering commands
with SRC.
In either examp!e, the programmer will load the data in the
device into the programmer RAM, in the same way as a
Load from Device is done from the front panel keyboard.
The carriage return {CR) at the end of the line acts as an
execute key. Command characters are input to the
programmer until the (CR) is entered, signalling the
programmer to execute that line of characters.
Command Entry
There are two methods of command entry while using
SRC, direct or interactive. in direct command entry the
commands aie entered from the terminal keyboard using
the space bar between words as shown in the examples
above (Command Protocol paragraph). Entry of the X, Y,
and Z values is optional, if they are not included the
programmer uses either the last valid entry or the default
value.
The interactive method streamlines the entries required of
the operator. The operator keys in the function, then
presses (CR). In return, the terminal displays a prompt
similiar to those displayed on the programmer display. For
example, if the CO (CR) is entered for a Copy command,
the terminal would display COPY DATA FROM to prompt
the operator of the next entry. Operation occurs just as it
does when using the programmer's keyboard except the
commands are keyed in at the terminal.
When entering data on the terminal, the slash (/) is used
in place of the REVIEW key. When pressed, it causes the
previous character(s), prior to a space bar entry, to be
ignored. The characters are stiii dispiayed on the screen;
however, all entries back to the previous space bar are
ignored and the operator can enter the replacement
characters.
Inputting Parameters
The parameters required are given in figure 3-5. The
characters entered must be valid 4-digit hexadecimal
values. When the default value is satisfactory, no new
value needs to be entered. If it is necessary to skip over
the source address (when its default is correct) and change
the block size, input a comma (,) or space bar (SP).
SRC Operations
When a command is sent to the keyboard using SRC the
programmer reacts the same as if a manual command had
originated at the keyboard. When the command is entered,
the programmer display reads the same as when the
corresponding key is pressed on the front panel keyboard.
The terminal display, while not identical with the "
programmer display, has approximately the same
information. The 29B's SRC can display both Select and
Format menus on the terminal. The procedures that follow
cover the commands available through SRC and show both
the terminal and programmer display.
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