Error Status Word; Device Commands - Data I/O 298 Manual

Command Groups
CRC commands are divided into the foiiowing six
catagories:
The handler commands are used only when
th~
optional
Handier is installed on the 298. Refer to the table listed
fOi
each category of command for a detailed explanation of
those commands. The characters (CR) are throughout the
tabies to represent the carriage return key.
• Control Commands (Tabie
3-7i
e
Utility Commands (Tab!e 3-8)
~
Device Commands {Table 3-9)
• 1/0 Commands (Table 3-10)
• Editing Commands (Table 3-11)
• Handler Commands Table 3-12)
Title
Return
Escape or Break
Title
Software
Configuration
Number
Set Begin RAM
Address
Set Block Size
Set Begin Device
Select Extended
Function
Sum-Check
Error-Status
Command
(CR)
ESC
Command
G(CR)
HHHH<(CR)
HHHH;(CR)
HHHH:(CR)
HH](CR)
S(CR)
F(CR)
Table 3-7. Control Commands
Description
Carriage return character which executes each command. It must
be sent to the programmer immediately after the command. All
commands are ignored if not followed by a RETURN.
These commands cause the programmer to unconditionally halt
(abort) any operation in progress, output a
> ,
and await further
instructions
fiom
the
computer.
Table 3-8. Utility Commands
Description
On command, the programmer sends the 4-digit hex number
representing the particular configuration or revision level of
software resident in the 29B.
This command, preceded by a 4-digit hex address (HHHH),
defines the first RAM address to be used for data transfers. It is
also the RAM source address when used in a Block Move. The
default value is 0.
Sets the hex number of bytes (HHHH) to be transferred. The
default value is the programming module word limit for device-
related operations or the RAM limit less the Begin RAM Address
for 1/0 operations; there is no default value for Block Moves.
This command, preceded by a 4-digit Address hex address
(HHHH), defines the first device address to be used for data
transfers. It is also used as the RAM destination address when used
in a Block Move. The default value is 0.
Accesses Select Functions or Select Codes (HH) carried in the
extended software of some programming Paks. Consult the pro-
gramming Pak manuals for more information.
This command instructs the programmer to calculate the 4-digit hex
sum-check of RAM from 0 or Begin RAM to RAM word limit,
device word limit, or the limit defined by the ";" (Block Size)
command, whichever is smaller. Sum-check is defined in the
Glossary in Appendix A.
On this command, the programmer Inquiry returns a 32-bit word,
displayed as 8 hex characters, that codes errors accumulated. The
I
error-status word resets to all zeroes after interrogation. See table 3-5.
3-41
10-990-0013