13. Communication setup
13.1 General Modbus communication
13.1.1 Modbus master, Serial 2
The ASC can read the power (active and reactive) from various digital power meters or Modbus devices. The Modbus serial
communication connections are located in slot #8 in the ASC as shown:
Terminal Function Associated menus
131 Modbus communication B
7720, DPM protocol type (for example DEIF MIB 7000C) and number of nodes
7730-7750, action at DPM Communication error (Modbus master)
7700 Comm ID and baud rate
7710, action at communication error
133 Modbus communication A
Note that the meters have their own Modbus parameters (ID and baud rate). Adjust these on the meters directly, typically on the
front display of the DPM.
Note that when using the Modbus master, serial 2 for measuring the mains, generator and/or PV power, it is not necessary to use
the transducers for measuring the power sources.
Breaker feedback on DPM
MIC 4002 and MIC 4224 include inputs that can be used as various breaker feedbacks. This is practical if the DPM is installed near
the generator so additional feedback wiring over a large distance is avoided.
In DEIF M-Logic, the feedbacks are configured. This example includes 3 generators and 1 mains incomer.
COMMISSIONING GUIDELINES 4189341077D EN Page 38 of 58
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