AKO DP Series, Instruction Manual, Page: 2 / 2

Modbus communication address
Modbus communication
Comm. protocol Modbus RTU
Comm. type
Rs485
Max.connection
255unit(address:01up255)
for use max 31 devices, must use Repeater
Comm. method Two-wire half duplex
Comm. distance
Max. 500m
for max 150m, must use Repeater
Comm. speed
9.6 and 19.2kbps(selectable)
Start bit
1-bit (fixed)
Data bit
8-bit (fixed)
Parity bit None (fixed)
Stop bit 1-bit (fixed)
Interface
Master
device
B (+)
A (-)
TH
#1
B (+) A (-)
TH
#2
B (+) A (-)
TH
#30
B (+) A (-)
TH
#31
B (+)
A (-)
Enable
terminating
resistance
Modbus network connection
Modbus Mapping Table
Address Item Remark
40002 (0001)
40003 (0002)
Temperature value
Humidity value
Temperature value x 0.01
Humidity value x 0.01
Modbus communication setting
8 Dip switches for
Set communication address
TH -
- - M
ON DIP
1 2 3 4 5 6 7 8
sw1
j1
Enable or Disable
Terminating resistance
ON
1 2
sw2
2 Dip switches for
Set Communication Speed
Sw1
Address
S5 S4 S3 S2 S1
1 0 0 0 0
0 1 0 0 0
1
1 0 0 0
0 0 1 0 0
1 0 1 0 0
0
1 1 0 0
1 1 1 0 0
0
0 0 1 0
1 0 0 1 0
0
1 0 1 0
1 1 0 1 0
0
0 1 1 0
1 0 1 1 0
0 1 1 1 0
1 1 1 1 0
0
0 0 0 1
1 0 0 0 1
0 1 0 0 1
1 1 0 0 1
0 0 1 0 1
1 0 1 0 1
0
1 1 0 1
1 1 1 0 1
0
0 0 1 1
1 0 0 1 1
. . .
.
.
1 0 1 1 1
0 1 1 1 1
1 1 1 1 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
.
253
254
255
S1 S6 S7 S8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1 1 1
1 1 1
1 1 1
.
.
.
. . . . .
.
. . .
. . . . .
.
. . .
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Modbus communication speed
Sw2
Baud
rate
9.6 kbps
19.2 kbps
-
-
0 0
1
0
0
1
1 1
S7 S6
Dimensions
Accessories :
AKO
Corporation
www.ako-auto.com
Tel&Fax: +98 41 35 59 53 48
Email: sales@ako-auto.com