Manual
Weld Seam Detection System R4000 SND40
for Tubes, Cans and Drums
B0059001 / Rev. 2.3
Communication with the PLC
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
53
Fault reporting table
Fault number via bus
Description
10
XY operation interrupted, since the data transfer for display is too slow
11
24 V PLC voltage is missing
12
Flat specimen operation is interrupted, since the data for the display is too slow.
13
Sensor cable broken
14
PLC program number is incorrect e.g. 0
17
Speed measurement not possible
18
Sensor short circuit
19
Leak flux module defect
20
PLC program not implemented
21
Fan defect
80 - 89
Timing problems to the Fieldbus modul (only display no faulty bit)
95
Internal data communication problems RS232
96
Internal problem (incorrect internal instruction)
97
System file not correct
98
Bus module defective
5.1.2 Input "Measurement start / Test job start"
This PLC command causes the SND40 to start a measurement. This function is available via the
Fieldbus and the parallel interface. The measurement can be made in the program / operating
status
Automatic / Ready
and
Set-up /
Edit
.
5.1.3 Input "Program selection"
Via the PLC interface the programs 1 to 31 can be selected binary coded. In addition, the signals
M1 to M16 are used.
Pattern for the binary coding
Program 0
=
Signals M1… M16 not set (this combination is not permitted)
Program 1
=
M1 set
Program 2
=
M2 set
Program 3
=
M1 + M2 set
…
… …
Program 31
=
M1 + M2 + M4 + M8 + M16 set (control of 1 + 2 + 4 + 8 + 16 = 31)
The program is taken over with the signal “
program selection
”. The program selection fails, if
a)
program No.0 is selected
b)
the selected program is missing
c)
or the selected program contains inadmissible parameters.
Case a)
the failure message "
selected program No. is 0 (invalid)
" is shown, the program will not be switched. Via the bus
the fault code 14 is set.
Case b)
the failure message "
program parameter index 1 invalid
" is shown, or fault code 20 via the bus. The program
switch to the desired program is not executed. The currently active program becomes deactivated. The program number via
bus is not changed.
Case c)
the failure message "
program parameter index xxx
" is displayed or fault code 20 via the bus. The program switch
to the desired program is executed.
Note:
The SND40 has 32 programs in the program memory.
Program 32 cannot be selected, but it can be used as backup memory.