320
Manual – IPOSplus®
23
Communication commands
Assembler – Commands
Object structure
Example 1
Cyclical transmission of two variable values (H008 and H009) with the SCOM command
from the sender to the receiver to variables H005 and H006.
Sender settings
H+0
Object number:
The object number is used for addressing the data object. The object num-
bers of the sender (TRANSMIT) and receiver (RECEIVE) must be the same for the data
exchange.
H+1
Number of data bytes and data format
Bit
Value
Function
0...3
0...8
Number of data bytes
4...7
0
Reserved
8
0...1
0 = MOTOROLA format
1 = INTEL format
The format of the sender and receiver must be
the same!
9...31
0
Reserved
H+2
Number of the variable H" from which point the received data is stored
Differences in user data formats MOTOROLA and INTEL:
MOTOROLA format
INTEL format
CAN Data Byte
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Variable
H"+1
H"
H"
H"+1
Variables byte
3
2
1
0
3
2
1
0
0
1
2
3
0
1
2
3
INFORMATION
In order to send or receive the data via SBus2, you have to add 0x1000000 to the ob-
ject number (OR operation).
With the SCOM command, even the variables that can be stored in the non-volatile
memory (H0 – H127) and all the parameters are only written in the volatile memory.
514587147
H0 Objectno.
1025 = user-defined
H1 Cycletime
10
= 10 ms
H2 Timeoffset
0
= no Offset
H3 Len
8
= Variable length 8 bytes
H4 D-Pointer
8
= Data pointer value at H8
H5 Returncode
96
H8
11111 = sent value
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