HRT-710 User Manual (Version 1.24, June/2015) PAGE: 9
[ Table 3: Screw terminal block ]
Pin
Name
Description
1
HART+
Positive of HART
2
HART-
Negative of HART
3
-
N/A
4
-
N/A
5
-
N/A
6
-
N/A
7
-
N/A
8
-
N/A
9
+VS
V+ of Power 10 ~ +30 V
DC
)
10
GND
GND of Power Supply
11
RXD
Receive Data of RS-232
12
TXD
Transmit Data of RS-232
13
GND
GND of RS-232
14
RX+
Receive Data+ of RS-422
15
RX-
Receive Data- of RS-422
16
TX+
Transmit Data+ of RS-422
17
TX-
Transmit Data- of RS-422
18
-
N/A
19
D+
Data+ of RS-485
20
D-
Data- of RS-485
2.3 Wiring
It is recommended to use only one serial port interface (RS232,
RS422 or RS485) of the HRT-710 module at the same time. The following
section describes the necessary steps to connect one of the three COM
port types to a Modbus network.
2.3.1 RS-232 Wiring
The RS-232 port of the HRT-710 has only three pins. The wiring of
the RS-232 device with the RS-232 port of the HRT-710 is shown as
Figure 4.
Содержание HRT-710
Страница 1: ...HRT 710 User Manual Version 1 24 June 2015 PAGE 1 TM H R T 7 1 0 User s Manual Version 1 24...
Страница 32: ...HRT 710 User Manual Version 1 24 June 2015 PAGE 32 Figure 23 MBRTU send and receive data...
Страница 96: ...HRT 710 User Manual Version 1 24 June 2015 PAGE 96 8 Dimensions...
Страница 97: ...HRT 710 User Manual Version 1 24 June 2015 PAGE 97...