Rockwell-automation 56RF RFID System User Manual Manual de usuario descargar pdf (Pagina 72)

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).

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 155 156

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Rockwell-automation 56RF RFID System User Manual Manual de usuario Pagina 72