ICP DAS USA ET-2200 Series, User Manual

Page: 4 / 125

ET-2200 Series Ethernet I/O Modules
Copyright © 2020 ICP DAS CO., Ltd. All Rights Reserved. -4 -
5. I/O PAIR CONNECTION APPLICATIONS ............................................................................................................... 82
5.1 O
NE
M
ODULE
P
OLLING THE
R
EMOTE
DI/DO (1-
TO
-1, P
ULL
/ P
USH
M
ODE
) ................................................................... 82
Pull Mode .................................................................................................................................................................. 84
Push Mode ................................................................................................................................................................. 85
5.2 T
WO
M
ODULES
P
USHING THE
L
OCAL
DI
TO EACH OTHER
(1-
TO
-1, P
USH
M
ODE
) .............................................................. 86
5.3 S
EVERAL
M
ODULES
P
ULLING THE
R
EMOTE
DI (M-
TO
-1) (P
ULL
M
ODE
) .......................................................................... 89
5.4 S
EVERAL
M
ODULES
P
USHING THE
L
OCAL
DI (M-
TO
-1) (P
USH
M
ODE
) ............................................................................ 92
6. MODBUS INFORMATION ................................................................................................................................... 95
6.1 W
HAT IS
M
ODBUS
TCP/IP? ................................................................................................................................... 95
6.2 M
ODBUS
M
ESSAGE
S
TRUCTURE
.............................................................................................................................. 96
01(0x01) Read the Status of the Coils (Read DO Readback vaslues) ......................................................................... 99
02(0x02) Read the Status of the Input (Read DI values) .......................................................................................... 101
03(0x03) Read the Holding Registers (Read AO Readback values ) ......................................................................... 103
04(0x04) Read the Input Registers (Read AI values) ................................................................................................ 105
05(0x05) Force a Single Coil (Write DO value) ......................................................................................................... 107
06(0x06) Set a Single Register (Write AO value) ...................................................................................................... 109
15(0x0F) Force Multiple Coils (Write DO values) ..................................................................................................... 111
16(0x10) Set Multiple Registers (Write AO values) .................................................................................................. 113
6.3 M
ODBUS
R
EGISTER
T
ABLE
.................................................................................................................................... 115
6.3.1 Common Functions ......................................................................................................................................... 115
6.3.2Specific Functions ............................................................................................................................................ 117
APPENDIX A:
TROUBLESHOOTING
.........................................................................................................................123
H
OW DO
I
RESTORE THE WEB PASSWORD FOR THE MODULE TO THE FACTORY DEFAULT PASSWORD
? ................................................... 123
APPENDIX B: REVISION HISTORY................................................................................................................................125