Beckhoff C1220 Bedienungsanleitung PDF herunterladen (Seite 13)

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149

13 Software description of functions

Beckhoff Lightbus - PC interface card C1220

Fibre-optic attenuation test

The attenuation reserve of the fibre-optic ring can be tested with this

function. In this test, all leaks of the fibre-optic ring are partially operated

with approximately 80% of the normal transmission intensity and extreme

test telegrams. This test can be run for all modules or for only one selected

module (see table). The C1220 can be tested separately via the module

address 0.

The table shows the function requests and the possible

acknowledgements.

ArgumentChannel Length Function

0 1 2

Comment

Request

04 0x05 00 00 Test all modules

04 0x05 01 nn Test module nn

04 0x05 00 00 Ring has adequate attenuation reserve

04 0x05 02 00 Error with high intensity

04 0x05 03 nn Switch error with low intensity (module nn)

04 0x05 04 nn Error with data pattern 1

(pattern 00)(module nn)

04 0x05 05 nn Error with data pattern 2

(pattern FF)(module nn)

04 0x05 06 nn Error with data pattern 3

(Pattern AA)(module nn)

04 0x05 07 nn Switch error with high intensity (module nn)

04 0x05 09 00 Continuous sending function active

"Error with high intensity" means that the ring already has an excessive

attenuation during normal operation or that there may be a fracture point.

"Switch error with low intensity" means that the transwhere intensity of the

module concerned cannot be reduced.

"Error with data pattern xx" indicates that the fibre-optic ring after the

specified module has an excessive attenuation. It is nevertheless possible

to operate the system, with the result that this malfunction can be remedied

at a suitable point in time.

"Switch error with high intensity" means that the specified module can no

longer be switched back to the full transwhere power.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 29 30

Keine Kommentare

Beckhoff C1220 Bedienungsanleitung Seite 13