ISPSoft User Manual 6-8 Data type Description AH/AS DVP AS5xx/ DVPxxMC Program FB Program FB Program FB FC LINT 64-bit signed integer, effective range is -9223372036854775808 ~ 9223372036854775807 and using positive/negative sign to represent the highest bit. Default value is 0. Only support AH Only support AH USINT 8-bit unsigned integer, effective range is 0 ~ 255, default value is 0. UINT 16-bit unsigned integer, effective range is 0 ~ 65535, default value is 0. UDINT 32-bit unsigned integer, effective range is 0 ~ 4294967295, default value is 0. ULINT 64-bit unsigned integer, effective range is 0 ~ 18446744073709551615, default value is 0.
REAL 32-bit floating-point value, effective range is -3.402823e+38 ~ -1.175495e-38, 0 and 1.175495e-38 ~ 3.402823e+38, contains 32-bit to represent a decimal value. Default value is 0.