Allen-Bradley PLC-5 series - Data Types Description

Allen-Bradley Ethernet Driver
Data Types Description
Data Type Description
Boolean Single bit
Byte Unsigned 8-bit value
Char Signed 8-bit value
Word Unsigned 16-bit value
Short Signed 16-bit value
DWord Unsigned 32-bit value
Long Signed 32-bit value
BCD Two-byte packed BCD, four decimal digits
LBCD Four-byte packed BCD, eight decimal digits
Float 32-bit IEEE floating-point
String Null-terminated character array
Note: The DWord, Long, and LBCD data types are not native to any of the PLC models. When referencing a
16-bit location as a 32-bit value, the location referenced is the low word and the next successive location is the
high word. For example, if N7:10 is selected as a DWord data type, N7:10 is the low word and N7:11 the high
word.
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