Allen-Bradley 56RF, Руководство пользователя

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72 Rockwell Automation Publication 56RF-UM001A-EN-P - October 2011
Chapter 9 RSLogix 5000 Code Examples
Get Multiple Block Security
Status The Get Multiple Block Security Status command retrieves the security status of
multiple blocks within a tag. It will also display the Universally Unique Identifier
(UUID) of the RFID tag.
Set the following values in the output image table:
a. xx:O.Channel[0].Command = 45
b. xx:O.Channel[0].Address = the first block to read
c. xx:O.Channel[0].Block = 0
d. xx:O.Channel[0].Data[0] = 0
e. xx:O.Channel[0].Length = the number of blocks to read.
f. xx:O.Channel[0].Reset = 0
g. xx:O.Channel[0].Timeout = 0
h. xx:O.Channel[0].UIDLow = 0 (or UIDLow)
i. xx:O.Channel[0].UIDHi = 0 (or UIDHi)
Unless a UUID is specified, this command will operate on the first tag in the
field. Specify a UUID in xx:O.Channel[0].UIDLow and
xx:O.Channel[0].UIDHi to perform the command on a specific tag.
Example Routine
In the example routine below, the initialization in Rung 1 sets the address, length
data, the Data[0] value used to clear the fields and sets the command value to 0.
The BlockSize, Reset, Timeout, UIDLow and UIDHi are set to 0 in the output
image table. The starting address is block 0. The command reads 28 blocks (all
the blocks of this RFID tag).