Wrong Connection Warning; Energy Flow Direction; Ct Connection; Communication - Iskra MC320 User Manual

Wrong connection warning
If all phase currents (active powers) do not have same sign (some are positive and some negative) and/or if phase
voltages and phase currents are mixed, the warning will be activated if this setting is set to YES. This warning is
seen only on remote display.
Energy flow direction
This setting allows manual change of energy flow direction (IMPORT to EXPORT or vice versa) in readings tab. It
has no influence on readings sent to communication or to memory.
CT connection
If this setting is set to REVERSED it has the same influence as if CT's would be reversely connected. All power
readings will also change its sign.
Communication
Serial Communication
They define parameters that are important for the operation in RS485 network or connections with PC via RS232
communication. Factory settings of communication are #33\115200,n,8,2 (address 1 to 247\rate 2400 to 115200
b/s, parity, data bits, stop bit).
Main menu  Settings  Communication 
USB Communication
Has no setting. Device is automatically recognized in Windows environment if device driver has been correctly
installed. For more detailed information how to handle device with USB communication use Help section in
MiQen software.
Service USB Communication (MC330 and MC320 only)
Has no setting. Device is automatically recognized in Windows environment if device driver has been correctly
installed. For more detailed information how to handle device with USB communication use Help section in
MiQen software
PLEASE NOTE
Service USB is intended only for parameterisation of the meter and is not galvanic separated.
Advantage is that in this case meter does not need a power supply to communicate.
Communication via service port is time limited.
WARNING!
Service USB communication is not galvanic separated!
When using service USB communication, power supply and measuring voltages need to be
disconnected!
PROFIBUS Communication
To set Profibus communication please see Appendix C.
M‐Bus Communication
To set M‐Bus communication please see Appendix D.
28 Measuring centres – MC320, MC330, MC350 & MC350H ‐ User's Manual
SETTINGS