Chapter
10
Operating Instructions
CLV 490 Bar Code Scanner
10-34
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SICK AG · Division Auto Ident · Germany · All rights reserved
8 008 796/0000/25-06-2002
Appendix
10.3
Installing and operating the external parameter memory
The external parameter memory is available as an accessory. It is located in a connector
cover and comprises a permanent, rewriteable memory (EEPROM). The connector cover co-
vers the two connections of the CLV in the enclosure rating IP 65. The cover is shown in
Two connection cables that are secured by means of conduit thread connec-
tions supply the signals to the CLV.
The external parameter memory is available in different implementations:
10.3.1
Function
When it is started, the CLV is initialized with the data stored in its internal parameter set. If
this parameter set has been copied to an external memory, the device can be replaced ea-
sily. The replacement device, therefore, does not have to be configured manually. Instead, it
accesses the external parameter memory automatically (assuming that the correct start
option has been selected). It then imports the parameter set to its RAM. This option is set
by default. The "Device Ready" and "Read Result" LEDs indicate whether the external me-
mory was accessed successfully. The CLV also outputs plain-text messages for troubles-
hooting purposes on the terminal interface.
Fig. 10-32: External parameter memory, installed on the CLV
22
22
88.5
50
27
27
Order no.
Two Connection cables with
CLV
Length Connection
2 020 307
Two 15-pin D Sub HD plug connections
(pin assignment identical to device connec-
tions)
Without
heater
3 m
CLV to AMV/S 60
AMV 30-071 and BMV 10
2 020 981
Two open cable ends
Without
heater
3 m
CLV to non-Sick Power pack, free wiring
2 020 308
One 9-pin D Sub cable connector and one
open cable end
Without
heater
3 m
CLV to BMS 20
2 021 689
Two 15-pin D Sub HD plug connections,
(pin assignment identical to device connec-
tions)
With
heater
3 m
CLV to AMV 100/200
Table 10-4: External parameter memory