Input, output and communication
Digital input
The digital input can perform four functions:
Function
Description
Parameters
Tariff management
Digital input used to manage the tariff
Digital input status
Tariff
Open
Tariff 1
Closed
Tariff 2
-
Remote status
Digital input is used to check the status via Modbus or M-Bus.
Digital input status
Register 300h
Open
0
Closed
1
-
Partial meters start/stop
Digital input is used to enable/disable the reset of partial meters
Digital input status
Partial meter
Open
Disabled (in pause)
Closed
Enabled
-
Partial meter reset
Digital input is used to enable/disable the increasing of partial meters
Digital input status
Action
Open
No action
Closed
After 3 seconds, reset partial meters
-
Digital output (version O1)
The digital output can perform two functions:
Function
Description
Parameters
Alarm
Output associated with the alarm
Output state when no alarm is active
Pulse output
Pulse transmission output for imported active energy consumptions.
l
Linked energy (kWh+, kWh-)
l
Pulse weight
l
Pulse duration
Modbus RTU port (version S1)
Modbus RTU communication port is used to transmit data to a Modbus master (Carlo Gavazzi UWP3.0 or any SCADA, PLC, BMS,
etc).
For further information about Modbus RTU communication refer to the communication protocol.
M-Bus port (version M1)
M-Bus communication port is used to transmit data to a M-Bus master (Carlo Gavazzi SIU-MBM or any third party M-Bus master).
For further information about M-Bus communication refer to the communication protocol.
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EM530/EM540 - User manual |23/11/2022 | CARLO GAVAZZI Controls SpA
