Pass code for user – Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 User Manual
Page 281

Publication 1758-UM002D-EN-P - October 2010
Extension Modbus Protocol for DataSite Controllers (1758-FLO) 281
Addresses Associated with
the Extension Modbus
Protocol Commands
The two blocks, buffer 1 and buffer 2, have different meanings for different
commands. The following table provides the register address, data type,
attribute and description for each command.
Pass Code for User
When the host computer communicates with the 1758-FLO DataSite
controller, you need to use the pass code to protect data. If you lose the
password, you can read it from the register 33001…33002. It is a long UINT
integer. The default value is zero.
Register addresses for Extension Modbus protocol commands
Address
Data Type
Attribute
Description
49025
u_short
RW
Command number (> 0)
49026
u_short
R
Return code (0 = OK)
49027
u_short
W
Meter run (0…7)
49028
u_int
W
Pass code for user. Default is 0.
49030…
49034
undetermined
RW
Command parameter block buffer 1, 5
registers
49035…
49290
undetermined
RW
Command parameter block buffer 2,
256 registers