Allen-Bradley 1444-TSCX02-02RB User Manual page 546

Appendix A CIP Objects
Data Types
Type Description
BOOL Boolean
SINT Short Integer
INT Integer
DINT Double Integer
LINT Long Integer
USINT Unsigned Short Integer
UINT, UINT16 Unsigned Integer
UDINT, UINT32 Unsigned Double Integer
ULINT Unsigned Long Integer
REAL Floating Point
DATE Date Only
TIME_OF_DAY (TOD) Time of Day
SHORT_STRING Character String (1 byte per character, 1 byte length indicator)
STRINGI International Character String
BYTE Bit String
WORD Bit String
DWORD Bit String
ENGUNIT Engineering Unit
546 Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Data
1 byte
1 byte: -128...127
2 bytes: -32768...32767
31 31
4 bytes: -2 ...2 -1
63 63
8 bytes: -2 ...2 -1
1 byte: 0...255
2 bytes: 0...65535
32
4 bytes: 0...2 -1
64
8 bytes: 0...2 -1
4 bytes: IEEE 754
2 bytes: 1972-01-01 + 65536 day...2151-06-06
4 bytes: 1 msec resolution
1 byte count header + 1*count byte sequence
Structure
8 bits
16 bits
32 bits