Omega Engineering OMG-CONV-485-ISO 사용자 설명서
Contents
INTRODUCTION.......................................................................................................... 1
O
VERVIEW
...................................................................................................................1
W
HAT
’
S
I
NCLUDED
....................................................................................................1
F
ACTORY
D
EFAULT
S
ETTINGS
................................................................................1
CARD SETUP ................................................................................................................ 2
RS-485 E
NABLE
M
ODES
.............................................................................................2
L
INE
T
ERMINATION AND
R
ECEIVER
E
CHO
O
FF
/O
N
.............................................4
OPERATING SYSTEM INSTALLATION (FOR WINDOWS USERS).............. 6
RS-422/RS-485 Four Wire Master/RS-485 Two Wire Auto Mode
Installation ............................................................................................................ 6
Installation ............................................................................................................ 6
RS-485 Two-Wire and RS-485 Four-Wire Slave Installation ...................... 7
Other Operating Systems .................................................................................... 8
SYSTEM INSTALLATION ......................................................................................... 9
TECHNICAL DESCRIPTION...................................................................................10
C
ONNECTOR
P
IN
A
SSIGNMENTS
............................................................................10
RS-232 Signals (DB-25 Female) .....................................................................10
RS-422/485 Pin Assignments (6 Position Screw Terminal).......................10
SPECIFICATIONS......................................................................................................11
E
NVIRONMENTAL
S
PECIFICATIONS
......................................................................11
M
ANUFACTURING
....................................................................................................11
M
EAN
T
IME
B
ETWEEN
F
AILURES
(MTBF).........................................................11
P
HYSICAL
D
IMENSIONS
...........................................................................................11
APPENDIX A - TROUBLESHOOTING..................................................................12
APPENDIX B - HOW TO GET ASSISTANCE......................................................13
APPENDIX C - ELECTRICAL INTERFACE..........................................................14
RS-232.........................................................................................................................14
RS-422.........................................................................................................................14
RS-485.........................................................................................................................15
APPENDIX D - GROUND LOOP PHENOMENON ..............................................16
W
HAT IS
G
ROUND
L
OOP
? .......................................................................................16
C
ABLING
R
ECOMMENDATIONS
..............................................................................16
APPENDIX E - ASYNCHRONOUS COMMUNICATIONS.................................17