Parker ViX250AE, User Manual

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6. COMMAND REFERENCE 87
6. Command Reference
Command Description
Each command has a simple 1 to 7 character name usually an abbreviation of its full
descriptive title. Listed commands are in alphabetic order with any non-alphabetic symbols
appearing last.
Each individual description will include a one-line header giving the abbreviated name
followed by its full name. The following lines give the command syntax, units of
measurement, range of values, any default value and a reference to other related
commands. Where commands contain a list of parameters, a simple layout displays only the
syntax of the command.
Every command requires an address. Where several drives need to respond to a
common set of global commands, prefix each command with the address 0. To prevent
spurious feedback any report or read command using address 0 will be ignored. Note a
drive will ignore a command missing an address prefix.
Where commands (such as R, and W) include a system variable, it is treated as a command
parameter. System variables store internal drive values and settings. Each variable is
capable of being read and tested, and some may be written to, but they are all dedicated for
a particular use by the system.
Command Syntax
Generally, a command’s syntax consists of an address ‘a’ followed by the command name.
Parenthesis containing the commands’ parameters or simply the range parameter ‘n’ follows
this. Within the parenthesis form of command, a comma separates each parameter and
italics indicate any optional parameters.
Commands not requiring any parameter string have the syntax shown in Figure 6-1.
aHn
Range parameter
Command name
Address prefix
Figure 6-1. Simple Command Syntax