Pepperl+Fuchs IC-KP-R2-V1 Manual page 35

IC-KP-R2-V1
Commands
Set password (PS):
Command:
Response:
The command PSsets the password, which the R/W head communicates to the data carrier in
password mode.
Operating mode "Default Read"
In "default read" operating mode, 1 or 2 words are read extremely quickly. The area of memory
earmarked for reading is already specified on the tag. The R/W head does not have to identify
the memory area for the tag.
The start and end of the read range are stored in the bytes 0 and 1 of the control word. As soon
as power is supplied to the tag, it sends data from the data range defined by the start and end
of the read range. The data range between read range start and end is read with the read
commands SR (Single read words) and ER (enhanced buffered read words) when
<WordAddr> is set to 0000h and <WordNum> to 00h.
The advantage of "default read" operating mode is the readout speed. The readout of one data
word (4 bytes) is twice as fast in this mode as the other modes. The readout of two words takes
approx. 1/3 less time. No more time advantages can be gained after three data words because
"default read" mode is designed to read a maximum of two words (= 8 bytes). Reading larger
data ranges can lead to error messages if the reading head does not respond within the
planned reaction time.
Setting "Default Read"
1. Activate the password mode.
2. Write the read range start and end into the "Control Word".
3. Deactivate the password mode.
4. Read the data range with address designation 0000h and word count 0h.
IPC03 configuration
Single get configuration (SG):
Command:
Response:
The R/W head makes exactly one attempt to read a word in the configuration range
("Protection Word" or "Control Word") from the address <ConfAddr>.
Enhanced buffered get configuration (EG):
Command:
Response:
The R/W head attempts to read a word in the configuration range from the address
<ConfAddr> until successful. Only data that changes is transferred via the interface, i.e. the
R/W head transfers data whenever it reads a new data carrier or whenever it reads a data
carrier where there was previously no R/W head within the detection range.
The status '05h' (read/write command) is output when the data carrier leaves the detection
range or if the data carrier is not yet within the detection range when the command is executed.
If two data carriers enter the read range one immediately after the other, the status '05h' is not
issued between the two readings.
PS <Ident channel><PW><CHCK><ETX>
<Status><Ident channel><CHCK><ETX>
SG <Ident channel><ConfAddr><CHCK><ETX>
<Status><Ident channel><Data><CHCK><ETX>
EG <Ident channel><ConfAddr><CHCK><ETX>
<Status><Ident channel><Data><CHCK><ETX>
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