
TPU2000/2000R Modbus/Modbus Plus/ Modbus TCP/IP Automation Guide
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msb lsb
msb lsb
Word Data MSW
Word Data LSW
Byte 0
Byte 1
Byte 2
Byte 3
Register Offsets of Signed/Unsigned Long
Word
Data
Byte 0
Byte 1
Register Offsets of Signed /Unsigned Integers
0
Byte
Data
Byte 0
Byte 1
Register Offsets of Signed/Unsigned Short
ASCII Char
ASCII Char
Byte 0
Byte 1
Register Offsets of ASCII Characters
The TPU2000 and TPU2000R support the following data return types for 4X formats:
•
Unsigned Short
- 8 bits - 1 byte in 1 word - Range 0 to 255
•
Signed Short
- 8 bits - 1 byte in 1 word - Range -128 to +127
•
Unsigned
- 16 bits - 2 bytes in 1 word - Range 0 to + 65,535
•
Signed
- 16 bits - 2 bytes in 1 word - Range -32,768 to 32,767
•
Unsigned Long
- 32 bits - 4 bytes in 2 words - Range 0 to +4,294,967,295
•
Signed Long
- 32 bits - 4 bytes in 2 words - Range -2,147,483,648 to +2,147,483,647
•
ASCII
- 16 bits - 2 bytes in 1 word 2 characters per register (Reference Appendix B)
The tables contained within this document reference the above definitions and give the cadence of bytes or words
as:
•
MSB
Most Significant Byte
•
LSB
Least Significant Byte
•
MSW
Most Significant Word
•
LSW
Least Significant Word
•
msb
Most Significant Bit
•
lsb
Least Significant Bit
Register Scaling Investigated
Within ECP and WinECP, the Change Settings Mode must be entered. A selection titled “Register Configuration”
will appear to the operator. Within ECP, a screen as depicted in Figures 5-26 and 5-27 appears allowing
configuration of any of the 32 available registers.