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.
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