64
Manual – MOVIDRIVE® MDX60B/61B Communication and Fieldbus Unit Profile
5
Other unit functions via CAN interfaces
CAN Interfaces of MOVIDRIVE® B
It is created in IPOS
plus®
using the
_SBusCommDef
command:
C The H variable (Hxxx) defined under 2 B is selected as setpoint source for the
position using
H430 MasterSource
.
D The filter time for the position setpoint (H446) must be set to a value greater than
or equal to the cycle time of the setpoint telegram (see 1 A "CycleTime").
3.
Slaves, which also act as master for other slaves
A The synchronization ID (P817 or P885/895 with MOVIDRIVE
®
B) must be
the
same
as the object number of the synchronization message of the master (see
1 B).
B The master position of the master is received and stored in an H variable. It is
created in IPOS
plus®
using the
_SBusCommDef
command:
C The H variable (Hxxx) defined under 2 B is selected as setpoint source for the
position using
H430 MasterSource
.
D The filter time for the position setpoint (H446) must be set to a value greater than
or equal to the cycle time of the setpoint telegram (see 1 A "CycleTime").
E Analogous to 1 A, a cyclic telegram is created for sending the master position of
this master to its slaves. The object number should be as small as possible (see
4 D) but greater than the object number chosen for 1 A.
4.
The following requirements must be fulfilled for successful internal
synchronization via SBus:
A The object number of the synchronization message must be the smallest object
number on the SBus
(e.g. "0")
.
B The time slice of the master must not be synchronized by other participants.
Therefore, P817 or P885/P895 (with MOVIDRIVE
®
B) for the master must be
different from all object numbers existing on the SBus
(e.g. "2047")
.
C Observe the sequence in which the sending of master position and synchroniza-
tion message is created in the master using the
_SBusCommDef
command.
Always the master position first and then the synchronization message.
D Following the synchronization message, the object number of the master position
should be the smallest object number on the SBus, e.g. "1". The smallest object
number on the SBus "8
×
SBus a 3" is defined via the MOVILINK
®
profile.
Sufficiently high prioritized telegrams for internal synchronization are achieved
with SBus addresses greater than or equal to 1.
Structure
Element
Setting
SCREC
ObjectNo
See 1A
Format
4 (4-byte, Motorola format)
DPointer
xxx
Structure
Element
Setting
SCREC
ObjectNo
See 1A
Format
4 (4-byte, Motorola format)
DPointer
xxx
Summary of Contents for MOVIDRIVE MDX60B
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