EMA-D9 - USER MANUAL
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•
V Unbalance
, allows to calculate the voltage unbalance between
the line voltage or phase voltage.
•
Password
,
it’s possible to set a numeric password to modify the
SETUP. The default password is 0000: the setup can be always
opened and it’s always possible to change any parameter. If the
password is different by 0000 (from 0001 to 9999), at the entrance
of setup, the password will be request. if the password is ignored,
it will be possible to see every parameter but it will be impossible
to modify it. Only with the correct password it’s possible to change every parameter. To set the new
password as 0000, the instrument come back at default status. Call the constructor to have an
emergency password if you lose the password.
10.3) SERIAL
COMM
The setup SERIAL COMM allows to set the communication protocol,
the communication parameters of serial output and the number of
node or logical address of instrument.
To set the parameters of the RS232-RS485 standard it’s necessary to see the submenu COM1 while,
the submenu COM2 is used to program the RS485 optional. The parameters programmable are:
•
Protocol
, can be chosen between ASCII and MODBUS.
•
Address
, is the address, node or logic number from 01 to 255 in
MODBUS or from 01 to 128 in ASCII. This number identifies the
node in a network and consequently the instrument or the
peripheral of a serial multidrop network.
This parameter is set freely. This parameter is set automatically
using NRG software with ASCII protocol while with MODBUS
protocol it must be set.
•
COM1/COM2
, are configured by the following submenus:
- Baud (B)
, transmission speed, programmable from 1200 to
19200 bps.
- Parity (P)
, parity sequence, programmable NONE-EVEN and
ODD.
- DataBit (D)
, number of data bits, programmable 7 or 8 bit.
Warning. Use only one of the standard serial outputs to communicate with a PC: the
RS232 or the RS485.
!
