Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 269)

Publication 1758-UM002D-EN-P - October 2010
Extension Modbus Protocol for DataSite Controllers (1758-FLO) 269
Modbus Registers for Physical I/O Hardware
All of the I/O hardware that is used by the DataSite controller must be
assigned to I/O database registers in order for the I/O points to be accessed.
They are mapped as below.
Modbus addresses for I/O hardware
Name Data Type Modbus Address Attribute
DI0 BOOL 10001 RO
DI1 BOOL 10002 RO
DI2 BOOL 10003 RO
DI3 BOOL 10004 RO
DI4 BOOL 10005 RO
DI5 BOOL 10006 RO
DI6 BOOL 10007 RO
DI7 BOOL 10008 RO
DI8 BOOL 10009 RO
DI9 BOOL 10010 RO
DI10 BOOL 10011 RO
DO0 BOOL 1 RW
DO1 BOOL 2 RW
DO2 BOOL 3 RW
DO3 BOOL 4 RW
AI0 U_SHORT 30001 RO
AI1 U_SHORT 30002 RO
AI2 U_SHORT 30003 RO
AI3 U_SHORT 30004 RO
AI4 U_SHORT 30005 RO
AI5 U_SHORT 30006 RO
AI6 U_SHORT 30007 RO
AI7 U_SHORT 30008 RO
AO0 U_SHORT 40001 RW
AO1 U_SHORT 40002 RW
PI0 U_INT 30011…30012 RO
PI1 U_INT 30013…30014 RO
PI2 U_INT 30015…30016 RO