Siemens MindConnect Nano System Manual page 67

Pin RS 485
Pin RS 485
Data- Transmit / receive data - (I/O) for
1
half-duplex mode
Data+ Transmit / receive data+ (I/O) for
2
half-duplex mode
3 -
4 -
5 M Signal ground
6 -
7 -
8 -
9 -
Modbus RTU data point parameter
In order to collect the data of your Modbus RTU device, you must add new data points.
The following picture shows the data point parameter window:
The following table shows the parameter of the Modbus RTU data point window:
Parameter
Data Type
67
Description
Data type supported by backend (e.g. INT).
4.5 Overview of Modbus RTU protocol for MindConnect Nano
RS 422
RS 422
TX- Transmitted data - (O) for full-
duplex mode
TX+ Transmitted data + (O) for full-
duplex mode
RX+ Receive data + (I) for full-
duplex mode
RX- Receive data - (I) for full-duplex
mode
M Signal ground
-
-
-
-
Configuring protocols
RS 232
RS 232
Not supported
RxD Received data
(I)
TxD Transmitted
data (O)
Not supported
M Ground
Not supported
Not supported
Not supported
Not supported
MindConnect Nano
System Manual 7/2023