ID 21520

Memory for external variables too small! Not all external variables available!

Description

This is a follow-up error message from ID 21518 or ID 21519. When the address of one (or several) global or channel-specific external variables is addressed, the system detected that the calculated address exceeds the permissible memory range. Parameter 2 of this error message reads the required number of 24-byte memory blocks (see P-STUP-00037) which are required to create all external variables.

The error message may also be displayed when V.CH variables are used.
The memory space for V.CH variables is specified in P-CHAN-00424.

Response

Class

2

Controller start-up is continued but not all configured external variables are available.

Solution

Class

6

Reduce the number of variables or increase the memory for the V.E. or V.CH variables.

Parameter

%1:

Error value [-]

Current configured number of 24-byte memory blocks P-STUP-00037

%2:

Expected value [-]

Required number of 24-byte memory blocks P-STUP-00037

%3:

Expected value [-]

Optional parameter: Required memory space

%4:

Current value [-]

Optional parameter: Identifier of variable type
”E” for V.E. variables
”CH” for V.CH variables

Error type

-