Rockwell Automation 56RF RFID System User Manual - Manual (Page 84)

84 Rockwell Automation Publication 56RF-UM001A-EN-P - October 2011
Chapter 9 RSLogix 5000 Code Examples
Lock DSFID The Lock DSFID command will lock the 1 byte of information for the Data
Storage Format Identifier (DSFID) area of the tag, preventing it from being
modified.Once the DSFID byte is locked, it cannot be unlocked.
Set the following values in the output image table:
a. xx:O.Channel[0].Command = 44
b. xx:O.Channel[0].Address = 0
c. xx:O.Channel[0].Data[0] = 0
d. xx:O.Channel[0].Length = 0
e. xx:O.Channel[0].Reset = 0
f. xx:O.Channel[0].Timeout = 0
g. xx:O.Channel[0].UIDLow = UIDLow
h. xx:O.Channel[0].UIDHi = UIDHi
The UIDLow and UIDHi bytes must be specified to lock the DSFID value. The
UUID can be found by performing the Inventory command.
Example Routine
In the example routine below, the initialization in Rung 1 sets the address, length,
the Data[0], UIDLow and UIDHi values used to lock the DSFID and sets the
command value to 0. The BlockSize, Reset, and Timeout are set to 0 in the
output image table.