Question: what are the data types in plc?
Answer: Bit Strings – groups of on/off values. BYTE – 8 bit (1 byte) ... 
INTEGER – whole numbers (Considering byte size 8 bits) SINT – signed short integer (1 byte) ... 
REAL – floating point IEC 60559 (same as IEEE 754-2008) REAL – (4 byte) ... 
Duration. ... 
Date. ... 
Time of day. ... 
Date and time of Day. ... 
Character / Character string.