Rockwell Automation 2711P Creating Modbus Applications - Manual (Page 71)

Publication 2711P-UM002B-EN-P - March 2007
Modbus ASCII Address Definitions 71
Holding Registers Default types are shown in bold.
Holding Registers
Decimal Addressing
Type Word, Short, BCD
Format 4xxxxx
Security Read/Write
Range 400001 - 465535
Type Boolean
Format 4xxxxx.bb
Security Read/Write
Range 4xxxxx.0 - 4xxxxx.15
Type Float, DWord, Long, LBCD
Format 4xxxxx
Security Read/Write
Range 400001 - 465534