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232
Manual – IPOSplus®
17
Standard functions
Compiler – Functions
If objects defined via SCREC are received via SBus1 or SBus2, this is signaled in the
corresponding system variables H522 and H523, see System variable overview
(page 29).
Bit 24 of the ObjectNo defines whether the data are transmitted or received with the CAN
identifier (bit 0 ... 10) via SBus1 or SBus2:
Bit 24 = 0: SBus1 (.ObjectNo = SCD_SBUS1)
Bit 24 = 1: SBus2 (.ObjectNo = SCD_SBUS2); only MDX B with DFC11B
Unit-specific characteristics:
Number of data bytes and data formats:
Comparison of MOTOROLA and INTEL format:
Element
Unit-specific characteristics
MOVIDRIVE
®
B
MOVITRAC
®
B
CycleTime (H+1)
Valid cycle times
1)
:
- 1, 2 ... 9 ms, number of objects 15
- 10, 20, ... 65530 ms
1) The cycle time must always exceed the longest offset time.
Valid cycle times:
1 ... 255 ms, granularity 1 ms, number of
objects 16
Offset (H+2)
Valid offset times:
- 0, 1, 2 ... 8 ms for cycle times < 10
ms
- 0, 10, 20, ... 65530 ms for cycle
times
≥
10 ms
Valid offset times:
0 ... 255 ms, granularity 1 ms
The following must apply:
Offset time + cycle time
≤
255
Bit
Value
Function
0 ... 3
0 ... 8
Number of data bytes
4 ... 7
--
Reserved
8
0
MOTOROLA format
1
INTEL format
9 ... 31
--
Reserved
MOTOROLA format
INTEL format
CAN byte
3 2 1 0
3 2 1 0
0 1 2 3
0 1 2 3
Variable
H"+1
H"
H"
H"+1
Var. byte
3 2 1 0
3 2 1 0
0 1 2 3
0 1 2 3
P
i
f
kVA
Hz
n
P
i
f
kVA
Hz
n