4-1
SECTION 4.
Serial Communication
4.1 GENERAL
The DXp-10/15 is equipped with a variety of
standard and optional serial output formats that
are selected using a series of DIP switches
(Figure 4-1). DIP switch positions 1, 2, and 3
allow three format choices; Digi-System
network, continuous output, and
terminal/computer interface (Table 4-1). All three
types of DXp interfacing will be discussed in the
following paragraphs. Positions 4-7 designate
transmitter address for applications requiring
more than one DXp unit (Table 4-2). Switch
position 8 is unused and should be left in the '0'
(ON) position.
NOTE: If the MODBUS option is installed and
enabled, use the DIP switch selections
presented in Figure 4-
2• (Page 4-4).
4.1.1 LCp-40 Digi System Network.
Up to 16 DXp-10/1.5 transmitters can be
networked to the LCp-40 Network Controller.
The half duplex format used to run the network
is designed to provide remote operation of
gross, net, tare, zero, calibration/set-up, and
diagnostics, at high speed. This format is not
intended for direct interface with a terminal or
computer. The baud rate is selectable to
accommodate systems with very long (low baud)
or short (high baud) distances between DXp
units.
4.1.2 Standard Simplex Output
(Continuous Output).
The simplex output format is designed to
transmit gross weight data (ASCII coded) to a
remote terminal or computer. The accuracy of
this point to point, digital communication
interface is much greater than simple analog
current or voltage approximates. Simplex
outputs are transmitted in the format on page 4-
2, top left-hand column.
Table 4.1. Serial Interface and Band Rate
Selections
Switch
Positions
1 2 3
Baud
Rate
Interface
0 0 0
9600
Digi-System Network
1 0 0
28800 Digi-System Network
0 1 0
57600 Digi-System Network
1 1 0
1200
Continuous Output
0 0 1
9600
Continuous Output
1 0 1
1200
Terminal Interface
0 1 1
9600
Terminal Interface
1 1 1
-
Reserved Setting; used
for special protocol
interface options
Switch
Position
4 5 6 7
Address
0 0 0 0
16
1 0 0 0
1
0 1 0 0
2
1 1 0 0
3
0 0 1 0
4
1 0 1 0
5
0 1 1 0
6
1 1 1 0
7
0 0 0 1
8
1 0 0 1
9
0 1 0 1
10
1 1 0 1
11
0 0 1 1
12
1 0 1 1
13
0 1 1 1
14
1 1 1 1
15