Command Types; Command Sequence Diagrams - Pepperl+Fuchs IDENTControl IC-KP2-2HB18-2V1 Manual

IC-KP2-2HB18-2V1
Commands
Note!
Instead of setting the parameters "multiplexed mode" or "tag type" by command,
these parameters can be set as part of the data initialization or initialization
processes. For more information on the MM and CT commands, see chapter
7.3.8.
A trigger mode command must follow a command that is started on a trigger
condition. As this command does not fit together with the other settings in the
register, the trigger mode is not contained in the initialization data.
7.3.5

Command Types

When using commands, a distinction is always made between the two operating
modes single mode and enhanced mode.
Single mode
The command is executed once. A response is issued immediately.
Enhanced mode
The command remains permanently active until it is interrupted by the user or by
an error message. A response is issued immediately.
The command remains active after the response is issued. Data is transferred
only if read/write tags change. Read/write tags are not read twice. If a read/write
tag leaves the read range, the status '5' is output.
If the control interface retrieves the responses from an enhanced command only a
single time, the reader's working memory may become full.
7.3.6

Command sequence diagrams

Read command single without split data, RYn3 as confirmation
Figure 7.4
PLC program
ID command execution request (RYn4)
ID BUSY (RXn3)
ID division data request (RXn7)
ID division data complete (RYn7)
ID command complete (RXn4)
ID data ack (RYn3)
ID in zone contact (RXn2)
Tag communication
ID error occurrence (RXn5)
writing cmd reading response
to RWw from RWr
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