User's Manual

CHAPTER3
UsingTerminalCommands
27
• Command is the command proper, which can be composed of a
variable string of characters (for example, SLOT). Each node can
implement a set of commands depending on the functionality of
the node itself. However, as a minimum requirement, a node
recognizes the CMDS command, which returns a list with the
commands accepted by the node.
•
Param1 Param2 ... ParamN represent the parameters, which
are command dependent. If you type no parameters when you
issue a command, it is the equivalent of querying for information
(the GET version of a command). If you type parameters, you are
issuing the SET version of a command and are setting the
command to the parameters you typed.
GeneralFormatofanAnswer
The answers have the following format:
ID Command Result1 Result2 ... ResultN ErrResult #
•
ID is the answering device. If a command was further routed, it is
the ID of the end device. The answer must always contain the ID
on return.
•
Command is the string representing the original command. It is
supplied so that a master can distinguish between the answers it
is waiting for, and out-of-band notifications (which may come, for
example, over the radio port of a node). As with the ID, the
command name must always be supplied.
•
Result1 Result2 ... ResultN are the result values returned
by the remote node. If the ErrResult is not zero, all other
possible characters and/or strings until the end of the line might
be ignored.
•
ErrResult shows whether the command was successfully
executed. If this value is 0, the command was successfully
executed. If this value is other than 0, the command failed. The
number may further indicate the error type. (See also “Returned
Errors List” on page 44.)
The answer string may contain any number of spaces or CR/LF
characters between its components. However, after the terminator
(#), no other characters are allowed.
UsingTerminalCommands
The A753 remote wireless modem firmware is based on the firmware
used in the Series 4 RTUs. Therefore the A753's commands are very
similar to the Series 4 commands.
Following is a list of available commands and an explanation of their
use.
Note: You can type uppercase or lowercase characters because the
commands are not case sensitive.