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1.
Overview of the unit
1.6 Multi-address system
This product is a multi-address system where different communications addresses (numbered in order) are allocated
to each circuit.The communications addresses correspond to each measuring point, so data transmission
management from the host device is simplified.
The following diagram is an overview of the multi-address system.
The measurement values and setting values for individual circuits are accessed via communications addresses for
each of the circuits. The common settings are common to all of the circuits, so they can be accessed using any of the
communications addresses, which allows changes to settings for all of the circuits at once.
Refer to "6.Detailed settings for communications (
69)" for details about commands, responses, and address maps.
Caution
• Each circuit on this product needs to be allocated different communications addresses (numbered in order).
Even if you connect several of these products on the same RS-485 line, all of the circuits need to be allocated
different communications addresses.
Circuit D
Measured
value
Setting
value
Communi
cation
address
For 1-phase 2-wire (maximum of 4 circuits)
For 1-phase 3-wire, 3-phase 3-wire
(maximum of 2 circuits)
Model KM-N3
Model KM-N3
Circuit C
Measured
value
Setting
value
Circuit B
Measured
value
Setting
value
Circuit A
Measured
value
Setting
value
Communi
cation
address
Communi
cation
address
Communi
cation
address
Circuit A
Measured
value
Setting
value
Communi
cation
address
Circuit C
Measured
value
Setting
value
Communi
cation
address
