Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 197)

Publication 1758-UM002D-EN-P - October 2010
DataSite Flow Configuration Utility (DS FloConfig) 197
Scan blocks are configured in sequence, and every block has a corresponding
number. The maximum number of block numbers is 128.
When the type of a block is Empty Block, its subsequent block configuration
is invalid.
Address
For 1758-RTU controller, this means the Modbus slave station number of the
serial communication equipment connected with COM1 or COM2.
The range of the Modbus slave station number is 1…247.
Signal Type
The signal type indicates the category of register read/write signal, and its
contents.
When the address of the master or slave register does not map to the signal,
the following error will appear.
Signal types and functions
Signal Type Function Modbus Command
Read_Coil register Read 00001…04096 register 1
Read_State register Read 10001…14096 register 2
Read_Hold register Read 40001…49999 register 3
Read_Input register Read 30001…31024 register 4
Write_1Coil register Write 00001…04096 register 5
Write_1Hold register Write 40001…49999 register 6
Write_nCoil register Write 00001…04096 register 15
Write_nHold register Write 40001…49999 register 16