Control Techniques Epsilon EP-P, Reference Manual

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Epsilon EP-P Drive Reference Manual
199
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Revision A4 www.controltechniques.com
Could not find the variable
defined by program text
See message.
Destination Event variables
can only be assigned an
Event or Boolean
The Variable is an Input event. It only
accepts types consisting of Boolean, and
events.
Program Instance does not
Exist
You attempted the “Call Program.#”, but
the program does not exist.
Single value expressions
can only be Boolean
constants, Events or
Boolean variables
This message occurs in conditional
Expressions (i.e. If then). Variables are
type identified, so equation and
assignments .(x = 9) can be verified.
In an expression you can use single variables
without a comparison, but , then they must be
a Boolean constants, Events or Boolean
variable.
String does not represent a
predefined name...
The string needs to match one of the
defined strings on record in the Epsilon
EP-P drive Registry data base.
String is not a selection
The string matches one of the defined
strings, but that string is not a selection.
Syntax error encountered
Parser Error Message. The Parser can
not understand your text sequence.
Text Strings are limited to 12
characters...
To change a Name you assign a quoted
text string to that name. In Epsilon EP-P
drive, text strings are fixed at 12
characters. If you use fewer than 12
characters, blanks are automatically
inserted. An error occurs if you attempt
to use more than 12 characters.
The Boolean variables can
only be assigned an Event
or Boolean value
The Variable only accepts types
consisting of Boolean, and events.
The destination variable
does not accept Data
The Variable’s internal data type
attribute was not found.
The destination variable
does not accept negative
numbers
You attempted to assign a negative
number to an unassigned variable .
The destination variable is
Read Only
This message occurs when trying to
assign a value to a read only variable.
The destination variable
only accepts a numeric
value
See message.
The destination variable
only accepts a Boolean or
Event value
See message.
The destination variable
only accepts quoted "text"
See message.
The destination variable
only accepts selection text
See message.
The destination variable's
resolution is less than the
resolution of the number
You attempted to assign a number with a
greater resolution of decimal points than
the variable will accept (i.e. index.0.vel =
2.34567).
The User Units setup will allow you to define
the desired decimal point resolution.
The number is outside the
range of the destination
variable
You attempted to assign a number that is
outside the variable’s range.
To determine the range comment out this
instruction and use the red dot help on the
variable.
The mix of variable or
expressions types can not
be added or subtracted
This message occurs in equations.
Variables are type identified, so equation
and assignments (x = 9) can be verified.
In an equation only numerical values can
be multiplied or divided. Booleans,
Selections, text and events can not be
added.
Problem/Message Cause Solution