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X50
Installation and Operation Manual
63
Enabling the Parameter Control Script
To enable a parameter control script, set the Activate Script parameter to Enable . Enter
your script into the Script (Part I) parameter (maximum 251 characters). If additional script
space is needed, use the Script (Part II to IV) parameters.
Script Status [RO] reports the parsing and active status of the script. If a syntax error is
detected when a new script is entered, this parameter will report Error: x message ( x is an
index number starting from the beginning of the script to indicate around which character
the script parser first encounters a syntax error).
Writing the Parameter Control Script
Parameter control scripts are made up of one or multiple statements. Each statement
consists of one condition and one or multiple assignments. During device operation, if the
condition in a statement becomes true, the assignment in the statement will take effect.
<script> ::= <statement> { <statement> }
<statement> ::= IF <condition> THEN <assignment> { <assignment> }
<condition> ::= <comparison> { <logic op> <comparison> }
<comparison> ::= PARAM[x] <comparison op> y
Where x is the CCSP ID of a device parameter, y is a value for that parameter. The
device parameter could be one of three types: integer, enum, string. Depending on the
parameter type,
y could take different format:

Integer: y is integer value of the parameter

Enum: y is the enum value index inside the enum

String: y is in a ' zzzz ' string format, where z is a character. Special character '*' can
be used as wild card. ' AA *' and ' AABB ' will be considered as equal
<comparison op> :: = == | > | < | >= | <= | !=
For string type of parameter, only == and != operators are supported.
<assignment> :: = PARAM[x] = y
Where x is the CCSP ID of a device parameter, y is a value for that parameter.
<logic op> :: = && | ||
Comparisons can be AND ed together using && , and then can be OR ed together using
| |. The AND operation always has precedence over the OR operation when AND and
OR both exist in a condition.
The following script condition
PARAM[400]==5 || PARAM[400]==3 || PARAM[400] >= 8 && PARAM[400] <= 12
should be interpreted as
PARAM[400]==5 || PARAM[400]==3 || (PARAM[400] >= 8 && PARAM[400] <= 12)