Справочник Пользователя для B&B Electronics 485DSS
485DSS3298 Manual
Table of Contents
i
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 434-7094
TABLE OF CONTENTS
CHAPTER 1: HARDWARE ...................................................................1
I
NTRODUCTION
.........................................................................................1
Figure 1. Example of an RS-485/422 Multi-Node Network.......................1
C
HECKLIST
...............................................................................................1
S
PECIFICATIONS
........................................................................................2
Figure 2. Top View of Circuit Board...........................................................2
P
ORT
C
ONFIGURATION
..............................................................................2
RS-485/422 Port ..................................................................................2
Table 1. RS-422/485 Port ......................................................................3
RS-232 Port .........................................................................................3
Table 2. RS-232 DTE DB25P Connector Chart.....................................4
RS-422/485 Wiring ..............................................................................4
2-Wire Mode ........................................................................................4
2-Wire Mode ........................................................................................4
Table 3. Component Values For Send Data Timing...............................5
Figure 3. RS-485 Wiring Diagram .............................................................6
4-Wire Mode ........................................................................................6
Figure 4. RS-422 Wiring Diagram .............................................................7
RS-485
AND
RS-422 T
ERMINATION
.........................................................7
P
OWER
S
UPPLY
.........................................................................................7
O
PERATION
...............................................................................................8
Figure 5. Simplified Functional Diagram ...................................................9
C
OMMUNICATION
C
ONFIGURATION
..........................................................9
D
ISTRIBUTED
S
MART
S
WITCH
C
OMMANDS
...............................................9
The Command String .........................................................................10
ON Command ....................................................................................10
OFF Command ..................................................................................11
STATUS REQUEST Command ..........................................................11
ON Command ....................................................................................10
OFF Command ..................................................................................11
STATUS REQUEST Command ..........................................................11
S
ETTING THE
485DSS A
DDRESS
.............................................................14
Table 4. Address Switch.......................................................................14
B
INARY
F
ILE
T
RANSFER
.........................................................................15
CHAPTER 2: SOFTWARE...................................................................16
D
ESCRIPTION
.........................................................................................16
H
ARD
D
RIVE
I
NSTALLATION
...................................................................16
R
UNNING
D
EMONSTRATION
P
ROGRAM
.................................................17
APPENDIX A: ASCII CHARACTER CODES .................................A-1
APPENDIX B: DECIMAL/HEXADECIMAL CONVERSIONS......B-1
Table 5. Hex/Dec Conversions ................................................................B-1