Pepperl+Fuchs IDENTControl IC-KP2-2HB18-2V1 Manual page 66

IC-KP2-2HB18-2V1
Commands
Set password (PS --> 42h)
Master -> Slave
Address
CH1
RWw n
RWw n+1
RWw n+2
RWw n+3
Slave -> Master
Address
CH1
RWr n
RWr n+1
n:
*:
The PS command sets the password, which the R/W head transmits to the
read/write tag 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.
66
Bit no.
CH2* 15
RWw n+8
RWw n+9
RWw n+A <PSW> byte 2
RWw n+B <PSW> byte 0
Bit no.
CH2* 15
RWr n+8
RWr n+9 <ReplyCounter>
Address in master module, specified by the assignment of the stations
2 channel mode
8 7
0 1
-
8 7
0 1
0
0 0 0 0 1 0
-
<PSW> byte 3
<PSW> byte 1
0
0 0 0 0 1 0
<Status>