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D
D
I
I
M
M
o
o
d
d
b
b
u
u
s
s
A
A
d
d
d
d
r
r
e
e
s
s
s
s
e
e
s
s
The nDI parameters in the following Modbus Address Tables are as follows:
Model Name
Universal DIO
Number of DO channels
(nDO)
Number of DI channels(nDI)
ET-2251
-
-
16
(0xxxx) DO Address:
Starting
Address
Points
Description
Bits Per
Point
Range
Access
Type
32
(0x20)
1
Clears the status of all high latched DI
Channels
1
1 = Clear
W
33
(0x21)
1
Clears the status of all low latched DI
Channels
1
1 = Clear
W
34
(0x22)
1 ~ nDI
Clears the
high speed digital counter for all
DI Channels
1
1 = Clear
W
150
(0x96)
1
Enables the high and low latches for all DI
Channels
1
0 = Disable
1 = Enable
(Default= 0)
R/W/F
151
(0x97)
1 ~ nDI
Enables the high speed digital counter for
all DI Channels
1
0 = Disable
1 = Enable
(Default= 0)
R/W/F
190
(0xBE)
1 ~ nDI
Enables frequency measurement for all DI
Channels
1
0 = Disable
1 = Enable
(Default= 0)
R/W/F
“
R
”: Read, “
W
”: Write, “
F
”: Settings are recorded in flash by default
(1xxxx) DI Address:
Starting
Address
Points
Description
Bits Per
Point
Range
Access
Type
0 (0x0)
1 ~ nDI
Digital Input
1
0: OFF, 1: ON
R
32 (0x20)
1 ~ nDI
Digital Latched Status (High)
1
0: NO
1: Latched
R
64 (0x40)
1 ~ nDI
Digital Latched Status (Low)
1
0: NO
1: Latched
R
“R”
: Read
For detailed information related to DI Modbus Addresses, refer to Section 6.3 "Modbus
Register Table" in the ET-2200 User Manual, which can be found at:
CD:\NAPDOS\ET2200\document\
http://ftp.icpdas.com/pub/cd/6000cd/napdos/et2200/document/
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