Manual
Double Sheet Control System R1000 series L20
with integrated fieldbus interface
B0063191 / 1.3
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
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6.3.4 Program switching
Fig. 18: Timing diagram for program switching
1)
In case of “Function fault“ “Function result“ is not necessarily set.
Note
The measured timing periods were determined with12 Mbit/s Profibus.
These timing periods can vary with different transmission rates and bus
systems. The cycle time of the PLC has not been taken into account.
Program no.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0 0 0 0 0 0 0 0
2
0 0 0 0 0 0 0 1
…
… … … … … … … …
255
1 1 1 1 1 1 1 0
not
used
1 1 1 1 1 1 1 1
BIN8.6
Program switching
BIN9.0 - 7
Binary measurement program
BOUT9.0 - 7
Binary current measurement program
BOUT8.0
Function result
1)
BOUT8.2
Function fault
BOUT8.3
Ready
“1” if fault
0V if fault
< 10 ms
< 15 ms
