Multi function meter looping
we have to design system for Energy monitoring system.
We have 70 Multifunction meter in a different-different location we have to take data over SCADA ,and all multifunction meter are equiped with RS485 protocol. distance between one meter to another is approx 90 meter.
my question is
1-how many meters will be looped in a single loop
2-is required PLC for every loop or we can use one plc for all meters
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