Chapter 6 Symbol Variables 6-9 Data type Description AH/AS DVP AS5xx/ DVPxxMC Program FB Program FB Program FB FC LREAL 64-bit floating-point value, effective range is -1.79769313486231e+308 ~-2.22507385850721e-308, 0 and 2.22507385850721e−308 ~ 1.79769313486231e+308, contains 64-bit to represent a decimal value. Default value is 0. Only support AH Only support AH ARRAY Array data type When a symbol is declared, the length of an array and the data type which to be stored are specified. (The max. length of array is 512.) STRING String data type, use 8-bit to represent one ASCII character.
AH/AS series has to declare assigned string length, maximum 128 characters; the string format of DVPxxMC series uses apostrophe, e.g. ‘abcd’, the initial biggest length is 32000 characters; the initial character length by default is 80 characters. Only support ES3 Only support ES3 STEP It is used as a recognition flag for step. (*1) (*2) Do NOT support ES3