Schneider Electric Modbus Plus Network Bridge Multiplexer none - Manual (Page 68)

Configuring the Programmable Models 31007492 58
4.1 Before You Start
4.1.1 Models Covered in This Chapter
This chapter covers the configuration process for the following models:
Part Number
Mounting
Method
Operating
Power
(Nominal) Modbus Plus
Network
Cable
Serial
Ports Serial
Protocol
NW–BM85E232 Panel or Shelf 115/230 Vac or
24 Vdc Single or Dual RS232 Programmable,
User Defined
NW–BM85D002 19 in Rack 125 Vdc or
24 Vdc Single or Dual RS232 Programmable,
User Defined
NW–BM85E485 Panel or Shelf 115/230 Vac or
24 Vdc Single or Dual RS485 Programmable,
User Defined
NW–BM85S232 Panel or Shelf 115/230 Vac or
24 Vdc Single or Dual RS232 Programmable,
User Defined
NW–BM85S485 Panel or Shelf 115/230 Vac or
24 Vdc Single or Dual RS485 Programmable,
User Defined
4.1.2 An Overview of the Configuration Process
The BM85 requires an internal program for controlling its operation,
with parameters for each serial port you will use in your application.
The unit contains a nonĆvolatile memory that stores your program and
port configurations, even when operating power is removed.
You must create your BM85 application program and download it across
the Modbus Plus network to the BM85. A switch is provided on the
BM85 to enable the unit to accept the download. If the unit is already
installed at its site and connected to the network, you can download your
program to it. You can also download your program at a spare network
connection near your download host, then transport the configured
BM85 to the site and install it.
Caution:ąYou must complete the internal configuration of the
BM85 before making the unit active in your application, both
on the Modbus Plus network and at its serial ports.
If you are installing a BM85 that was previously configured for
another application, another network, or different node, the
unit will still be retaining its previous configuration setup.
You must not connect the unit into the current application and
apply operating power to the unit until you have reconfigured
it for the current application.