Rockwell Automation 1395 Node Adapter Board - Manual (Page 9)

2 Chapter
2-1
Introduction and Product Description
Chapter Objective This chapter contains a description of the major hardware components of
the Node Adapter board. It is not intended to be an all encompassing
technical description of each hardware component. This chapter provides
information to aid service personnel in:
❏ Identifing the Node Adapter board.
❏ Understanding the hardware content of the board.
❏ Understanding the hardware requirements necessary to interface the
Node Adapter board with external devices.
General Board Description The Node Adapter Board (Figure 2.3) contains a smaller surface mounted
board. This smaller board contains the hardware which performs the Node
Adapter functions related to communication with a PLC Controller and
allows for discrete type PLC Controller I/O and block transfer. Additional
hardware on the board allows selection of the baud rate, the rack number
and also provide an interface to the Bulletin 1395 Main Control Board.
DIP switches U5 and U6 on the Node Adapter are used to select
communication type, baud rate, and rack address in octal.
U5
1 2 3 4 5 6 7 8 1 2 3 4
U6
Termination Resistor Setup
Baud Rate
Rack Type
Rack No. Octal
Switches SW1 through SW5 on U5 determine the rack address in Octal,
while switches SW7 and SW8 determine the rack type.
Switch SW1 on U6 determines the baud rate of the communication
between the PLC Controller and the Node Adapter Board. Switch SW4 on
U6 determines whether a terminating resistor is used. Switches SW2 and
SW3 are not used. Refer to the Installation chapter for switch settings.