4 Setting Up the MJ-5 Control Panel
Siemens Industry, Inc. 33
4.7 Communications Definition—
The <COMMUNICATIONS> Menu
The <COMMUNICATIONS> menu provides data items
for setting up local communications and remote
communications via the Communications Module. These
data items are described in the following sections.
4.7.1 Setting Up the Local Data Port
The Local Data Port must be set up for proper operation.
The <COMMUNICATIONS> menu contains the Data
Port setup items described in Table 4.8:
Table 4.8 <COMMUNICATIONS> Menu Setup Data
Items
Note: Default values shown in bold type.
Note: Data Port Address is always disabled in MJ-5.
To change the baud rate for the data port, view DatPort-
Baud under the <COMMUNICATIONS> menu and select
one of the options (300, 600, 1200, 4800, 9600, or
19,200).
To change the parity for the data port, view Data Parity
under the <COMMUNICATIONS> menu and select one
of the options (EVEN or NONE).
To enable or disable addressing for the data port, view
DataPortAddr under the <COMMUNICATIONS> menu.
Then, select one of the options (OFF or ON.) Disable
addressing for local communications with MJXplorer or a
Data Reader.
To change the Regulator Identification, view Reg Id under
the <COMMUNICATIONS> menu and set the desired
Reg Id value. For extracting data and generating reports
using the MJXplorer software, the Reg Id value appears
prominently at the top of the reports. If collecting data from
multiple controls, select a different value of Reg Id for each
MJ-5 unit.
To set the Communications unit address, view Comm Addr
under the <COMMUNICATIONS> menu. Enter the
desired address.
The “Comm Addr” screen shows the communications
address for the MJ-5 unit. For the Data Port, the usable
address ranges are listed in Table 4.9 below. Note that the
MJ-5 is device type “1”, and its group address is 254.
Table 4.9 Data Port Addresses
To enable or disable IP address selection, Networkmask, or
Default Gateway; view IP config under <COMMUNI-
CATIONS> menu and select one of the options (Static or
DHCP).(Static allows selection while DHCP will assign a
random address and will not allow the user to select them.)
To set the IP address, make sure IP config is set to Static
and view IP under <COMMUNICATIONS> menu. Enter
the desired address.
To set the Network Mask, make sure IP config is set to
Static and view NM under <COMMUNICATIONS>
menu. Enter the desired address.
To set DNP TCP port, view DNP TCP port under the
<COMMUNICATIONS> menu and input the desired port
number.
Currently IEC 61850 is configured to use port number 102.
4.7.2 Using the Communications Module
The Communications Module provides remote
communications capability for the MJ-5 Control Panel. The
Communications Module is a plug-in option offering
choices of communications protocols and physical
interfaces. Since the Communications Module Installation
Manual describes the configuration items in detail, they are
listed only for reference in Table 4.10
Note: Default values shown in bold type.
All controls on system respond
When an address in this range
is sent, only the control that has
that unique address responds.
Any control with the correspond-
ing group address, which is
determined by the control's
device type, receives and
executes commands with no
All controls on the system
receive and execute commands,