Rockwell Automation 2711P Creating Modbus Applications - Manual (Page 65)

Publication 2711P-UM002B-EN-P - March 2007
Modbus/TCP Address Definitions 65
Holding Registers Default types are shown in bold.
Holding Registers
Decimal Addressing Hexadecimal Addressing
Type Word, Short, BCD
Format 4xxxxx H4yyyyy
Security Read/Write
Range 400001 - 465536 H400001 - H410000
Type Boolean
Format 4xxxxx.bb H4yyyyy.c
Security Read/Write
Range 4xxxxx.0 - 4xxxxx.15 4yyyyy.0 - 4yyyyy.F
Type Float, DWord, Long, LBCD
Format 4xxxxx H4yyyyy
Security Read/Write
Range 400001 - 465535 H400001 - H4FFFF
Type String HiLo Byte Order
Format 400001.2H - 465536.240H
.Bit is string length,
Range 2 - 240 bytes H400001.2H - H4FFFF.240H
.Bit is string length,
Range 2 - 240 bytes
Security Read/Write
Range 400001 - 465536
Length 2-240 Bytes H400001 - H4FFFF
Length 2 - 240 Bytes
Type String LoHi Byte Order
Format 400001.2L - 465536.240L
.Bit is string length,
Range 2 - 240 bytes H400001.2L - H4FFFF.240L
.Bit is string length,
Range 2 - 240 bytes
Security Read/Write
Range 400001 - 465536,
Length 2-240 Bytes H400001 - H4FFFF,
Length 2 - 240 Bytes