Publication 1769-UM001B-EN-P - October 2002
Configuring Your Compact I/O Series B DeviceNet Adapter
4-29
Comparison Feature
The comparison feature regards
matching
. A
match
or
mismatch
is
determined based on a comparison of the programmed devices (the
devices stored in the adapter’s non-volatile memory) and the actual
devices present on the 1769 bus. The electronic keying options
(below) are applied on a position-by-position basis.
Each desired device and its location, modified by its electronic key
option (if settable), must match the corresponding actual device. If the
electronic key option for a device is set to
Exact Match
, then the
desired device’s type (vendor id, product type, and product code),
major revision, and minor revision must exactly match its
corresponding actual device to consider this entry a match.
If the electronic key option is set to
Disable Keying
, then the device
can be any type and revision and will be considered a match to its
corresponding actual device.
If the electronic key option for a device is set to
Compatible Module
,
then the desired device’s type must exactly match and its major/minor
revision must be equal to or less than the corresponding actual
device’s type. A major/minor revision of 2.3 is considered greater than
a major/minor revision of 1.9.
Remember, in order for the system keying configuration to be valid,
all of the desired devices (modified by their keying option) must
match.
IMPORTANT
Disable keying is not recommended because it will
allow an improper 1769 system configuration.
Allen-Bradley
Содержание Compact I/O 1769-ADN DeviceNet
Страница 1: ...Compact I O 1769 ADN DeviceNet Adapter 1769 ADN User Manual Allen Bradley...
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Страница 10: ...Publication 1769 UM001B EN P October 2002 vi Notes...
Страница 24: ...Publication 1769 UM001B EN P October 2002 1 10 Installing Your DeviceNet Adapter Module Notes...
Страница 50: ...Publication 1769 UM001B EN P October 2002 2 26 How Communication Takes Place and I O Image Table Mapping Notes...
Страница 76: ...Publication 1769 UM001B EN P October 2002 3 26 Configuring Your Compact I O Series A DeviceNet Adapter Notes...
Страница 110: ...Publication 1769 UM001B EN P October 2002 4 34 Configuring Your Compact I O Series B DeviceNet Adapter Notes...
Страница 152: ...Publication 1769 UM001B EN P October 2002 6 40 Application Examples Notes...
Страница 158: ...Publication 1769 UM001B EN P October 2002 A 6 Specifications Notes...
Страница 190: ...Publication 1769 UM001B EN P October 2002 B 32 Explicit Messaging Application Examples Notes...
Страница 196: ...Publication 1769 UM001B EN P October 2002 D 2 Differences Between Series A and B DeviceNet Adapters Notes...
Страница 202: ...Publication 1769 UM001B EN P October 2002 4 W Wiring DeviceNet 1 7 field connections 1 7 Word input status 2 2...
Страница 203: ...Publication 1769 UM001B EN P October 2002 5 Allen Bradley...