90
SI-EtherCAT User Guide
Issue Number: 2
The SI-EtherCAT module provides an input consistency feature for the non-synchronized cyclic
data which ensures that the data in the input mappings is only updated when the mapped
parameters are ready. This prevents data skew between parameters in the input mappings.
When the input consistency is enabled (
S.00.042
= On), the input consistency trigger parameter
(
S.00.043
) is used to control the TxPDO data exchange, ensuring skew does not occur; a user
program, for example, must check the trigger parameter is 0 before writing to the mapped
parameters, and it should set the parameter to 1 after all the data has been written. The SI-
EtherCAT module will check that the trigger parameter is 1 before reading the TxPDO sources and
will set the trigger parameter to 0 after the TxPDO sources have been read.
9.4.2
Menu 1 (EtherCAT Status)
This menu provides status information on the EtherCAT network.
This parameter displays the EtherCAT Run state, as required by the EtherCAT Indicator and
Marking Specification. It will contain one of the following values:
All other values will correspond to “Unknown State.
S.00.042
Non-sync IN Consistency Enable
Minimum
0 (Display: Off)
Maximum
1 (Display: On)
Default
0 (Display: Off)
Units
None
Type
1 bit User Save
Update Rate
EtherCAT state transition
Display Format
Bit
Decimal Places
0
Coding
RW, Bit
S.00.043
Non-sync IN Consistency Trigger Parameter
Minimum
0 (Display: 0.00.000)
Maximum
1 (Display: 9.99.999)
Default
0 (Display: 0.00.000)
Units
None
Type
32 bit User Save
Update Rate
EtherCAT state transition
Display Format
SMP
Decimal Places
0
Coding
RW, DE
S.01.001
EtherCAT RUN Indicator
Minimum
0
Maximum
8
Default
0
Units
Type
8 bit volatile
Update Rate
Background
Display Format
Text
Decimal Places
0
Coding
RO, Txt, ND, NC, PT, BU
Value
Display String
Corresponding ESM State
1
"Init"
INIT
2
"PreOp"
PRE-OPERATIONAL
4
"SafeOp"
SAFE-OPERATIONAL
8
"Op"
OPERATIONAL
Содержание SI-EtherCAT
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