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106
SI-Ethernet User Guide
Issue: 3
This is the time between getting the input value from the master and it being sent successfully to
the drive.
This is the time between getting the output value from the drive and it being sent successfully to the
master.
This parameter allows for enabling and disabling input assembly object consistency.
Under normal conditions, cyclic data is sampled and transmitted at the Requested Packet Interval
(RPI). However, if an option module was in the process of modifying the mapped parameters while
these parameters were being sampled, then the data transmitted across the network may not be
consistent across the entire assembly object. If read consistency is enabled (and a trigger
parameter specified in
In Consistency Trigger Param
(
S.20.027
)) then data will only be sampled
and transmitted to the PLC or EtherNet/IP master when the trigger parameter contains a non-zero
value. This trigger parameter will then be set to zero after the data has been transmitted.
It is therefore possible, by controlling the trigger parameters, that a user program in the drive or
option module can ensure that the values in the cyclic data parameters are not sampled until all
values are updated.
Whether consistency is enabled or not, data will always be consistent for an individual parameter,
i.e. all 4 bytes of a 32 bit value will be consistent.
S.20.024
Input Assembly Object Process Time
Minimum
0
Maximum
65535
Default
None
Units
ms
Type
16 Bit Volatile
Update Rate
Background
Display Format
None
Decimal Places
0
Coding
RO, ND, NC, PT, BU
S.20.025
Output Assembly Object Process Time
Minimum
0
Maximum
65535
Default
None
Units
ms
Type
16 Bit Volatile
Update Rate
Background
Display Format
None
Decimal Places
0
Coding
RO, ND, NC, PT, BU
S.20.026
In Consistency Enable
Minimum
0
(Display: Off)
Maximum
1
(Display: On)
Default
0
(Display: Off)
Units
None
Type
1 Bit User Save
Update Rate
Module reset, EtherNet/IP
interface reset or EtherNet/IP
interface enable
Display Format
None
Decimal Places
0
Coding
RW
If read consistency is enabled, then at reset or at power-up, the value in the trigger
parameter is set to zero.
NOTE