Intelligent Technologies Modbus to QCPort Adapter Manual
January 2006
MN05002002E (C)
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Page 30
Table 26 Modbus Addressing
Output Coils
Decimal
Addressing
Type Boolean
Format 0xxxx
Security Read/Write
Range
1 - 65536
Input Coils
Decimal
Addressing
Type Boolean
Format 1xxxx
Security Read
Range
1 - 65536
Holding Registers
Decimal
Addressing
Type
Word, Short, BCD
Format 4xxxx
Security Read/Write
Range
1 - 65536
Type Boolean
Format 4xxxx.bb
Security Read/Write
Range
xxxx.0 - xxxx.15
Type
Float, DWord, Long, LBCD
Format 4xxxx
Security Read/Write
Range
1 - 65535
Notice
Unless noted, every register (Modbus Register) documented with in this document is a
holding register.