| When using array tags with specific PLC
protocols the maximum request length of the protocol dictates the
maximum size of the array. For example, the MELSECF protocol has a
maximum request length of 512 bits limits arrays of integers to 512
/ 16 = 32 elements. However, even though this restriction exists
Citect will allow you to compile the project with a tag declared
which violates this restriction provided that the tag is not used.
If it is used in say an animation, then on compiling the project
Citect will flag an "Array Size Exceeded Error" pointing to the
place where the array tag was used; in this case the animation. To
fix the problem check the tag definition in the variable tags
database and ensure that the array size does not exceed the maximum
limit for the protocol. If the tag definition is correct then the
index used to access the array is too large. |
