Multiple-System Configuration - Omron KE1 User Manual

 Multiple-system configuration
Model KE1 is a system containing a maximum of six units. Multiple-system configuration can be
made via RS-485 communication.
The diagram below shows an example of the configuration consisting of the following multiple
systems where masters are connected with the wire for RS-485 communication. The three
systems are the configuration of the connection between power measurement and leakage
detection in Model KE1, single unit configuration for voltage sag detection, and the configuration
of the connection between energy classification and power measurement in Model KM1 series.
 Example of multiple-system configuration
Purpose of use : Classification of energy by equipment of single-phase 3-wire system line.
Power measurements by single phase 3-wire system, 3-phase 3-wire
system, and 3-phase 4-wire system
3-phase 3-wire system earth leakage and instantaneous voltage drop
RS-485
PGR1C
(Electric
power
/leakage)
Unit No.: 01
VSU1B
(Voltage
sag)
Slave ID: 3
Unit No.: 04
2 System
PMU2A
(Power-two
system)
Unit No.: 06
*. Set slave IDs in a way to avoid duplicates within the same system.
*. Make sure the communication protocol matches across the entire systems.
*. Set unit numbers in a way to avoid duplicates across the entire systems.
*. Within a system where multiple units are connected, do not use RS-485 wiring for multiple
connections.
monitoring.
CTD8E CTD8E
(CT (CT
extension) extension)
Slave ID: 1 Slave ID: 2
Unit No.: 02 Unit No.: 03
* If it is included in the system above, inter-unit
communication is carried out. This makes
communication slow.
This means that using it as a different system makes
communication faster.
CTD8E EMU8A
(CT (Pulse/
expansion) temperature)
Slave ID: 1 Slave ID: 5
Unit No.: 07 Unit No.: 08
3 System
1.3 System configuration
VSU1B ZCT8E
(Voltage (ZCT
sag) extension)
Slave ID: 3 Slave ID: 4
Unit No.: 04 Unit No.: 05
1 System
1-11