Operating manual Fx9x
.
„ISB“
input stand-by
“0“, “1“,
ACK
“0“ = operation, “1“ = stand-by
„ESM“ trigger
single
measurement /
Execute sing. m.
-
<meas. value>
Request for measured value with
single measurement output
„EPW“
write parameter
page /
execute parameter
write
-
ACK
Parameters are stored
Timing SSI compatible interface
4
T = Duration of clock signal, minimum 2 µSec = 500 kHz, max. 13 µSec = 77kHz
Tv = Delay time max. 360 ns
Tm = Minimum time between last rising edge and reloading of SSI approx. 24 µSec.
Gn = MSB (here Gray Code)
24bit transmission: G1 = second LSB, G0 = LSB
24+E transmission: G1 = LSB. G0 = Error bit
25bit transmission: G1 second LSB, G0 = LSB
Attention:
With SSI compatible transmission, data is updated in synchronization with the readout cycle. The data is as up-
to-date as the time interval between two readouts. An intermittent readout is therefore recommended. After a
longer readout interval, the data contents of the first readout can be “out-of-date” and should be ignored.
V. Error messages
In the event of errors, corresponding error messages appear on the display and the error outputs Qs and Qp
(active low) are set according to the following table. The error status can be questioned via the “GSI” command.
In principle, a combination of several errors can exist. e.g. too low a supply voltage can cause a counter error. In
this case the “GSI” command would report “00000110“ (via RS422)
Error message
on LCD
Output (active
low)
QS QP
Answer to
“GSI“
command
(get error
status)
Meaning
„BLINDING“
active
“01000000“ External light too strong or internal error
„LAS.ERR.“
active
active
“10000000“ Measurement laser faulty
„LOW VOLT“
active
active
“00000100“ Error in supply voltage: voltage too low (or error
in measurement of supply voltage)
„NO VALUE“
“00000000“ First measurement after switching-on not yet
ready. This message disappears after a short
time.
„SEARCH
BUS...“
Not possible Connection to the external bus adapter lost. The
sensor automatically tries to restore the
connection. This message disappears should
connection be restored.
„PLL
UNLOCKED“
active
active
“00000010“ Counter error
active
“00100000“ Temperature warning
(below -10
°
C or above 70
°
C)
„OVERTEMP“
active
(Laser
off!)
active
(Laser
off!)
“00101000“ Temperature too high (above 85
°
C inside);
Measurement switched off!
„Dist (mm)
>Maximum“
active
“00010000“ No target in range or sensor badly aligned
SensoPart Industriesensorik GmbH, D-79695 Wieden, Tel. +49 (0)7673 821-0 Fax +49 (0)7673 821-30 www.sensopart.de
Page 12
Status 21.10.2004 Software 1.51 and higher 068-13621
