turck BL IDENT, Быстрый старт

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Start-up
D101925 0412 - BLident® UHF 3-16
The definitions of the variables in the following table ( Table 20: “In_Out parameters” page 3-16 ) can be
found under the Resources tab in the Global Variables folder in VarGlobe_PIB.
View the status messages of the following table ( Table 21: “ Status messages” page 3-16 ) also with the
visualization for this example program (via the Visualizations tab by selecting PLC_VISU).
CMDSEL Command selection
A value between 1 and 10 can be entered in order to execute one of 10 possible
commands.
The definition of all commands is in CoDeSys below the description of the
PLC_PRG (PRG): PRG_PibCommands (PRG).
The following commands are supported by the visualization for this example
program:
1: WriteConfig - the initialization is completed by writing the configuration data.
3: Inventory - Reading of the UII from the data carrier.
4: PhysicalWrite - Writing of data to the data carrier.
5: PhysicalRead - Reading of data from a data carrier.
6: MemStatus - Status of a data carrier (e.g. memory size, available capacity).
7: DevStatus - Status of an Ident unit.
8: Next - This is the command to finish operations for a transponder.
Table 20:
In_Out
parameters
Variable Meaning
CMDREF This ln_Out variable references a global memory area that is used for storing
commands and the associated parameters. The maximum number of commands
assigned to a single PIB instance must not exceed 10.
TXREF This ln_Out variable is a reference to a global memory area used for send data
(write data) by several PIB blocks. The PIB instance can share the memory with
other function blocks.
RXREF This ln_Out variable is a reference to a global memory area used for receive data
(read data) by several PIB blocks. The PIB instance can share the memory with
other function blocks.
Table 21:
Status messages
Variable Meaning
STATUS This variable indicates an error and warning code.
DONE TRUE (green) indicates with this variable that the last command was executed.
During the execution of a command this variable changes momentarily to the
FALSE status (black).
Table 19: (cont.)
Control variables
and command
selection
Variable Meaning