Connecting the SmartLogger to the SUN2000
This topic describes how to connect the SmartLogger to the SUN2000 using an RS485 communications cable.
Context
Port |
Identifier |
Function |
|---|---|---|
COM1 port |
NC |
Reserved |
NC |
Reserved |
|
- |
RS485B, for RS485 negative differential signaling |
|
+ |
RS485A, for RS485 positive differential signaling |
|
COM2 port |
- |
RS485B, for RS485 negative differential signaling |
+ |
RS485A, for RS485 positive differential signaling |
|
COM3 port |
- |
RS485B, for RS485 negative differential signaling |
+ |
RS485A, for RS485 positive differential signaling |
The RS485 terminal block or RJ45 port on the SUN2000 is used for RS485 communication. There are two types of RS485 terminal blocks (1 and 2) located in different models of SUN2000s. All the SUN2000s have RJ45 ports. You are advised to use terminal blocks for connection.
- Terminal block connection
- Terminal block 1
Figure 4-9 shows the position of the terminal block in the SUN2000-50KTL/50KTL-C1. Table 4-3 describes the functions of the terminal block.
Table 4-3 Functions of the RS485 terminal blockNo.
Port Definition Function 1 RS485A IN RS485A, for RS485 positive differential signaling 2 RS485A OUT RS485A, for RS485 positive differential signaling 3 RS485B IN RS485B, for RS485 negative differential signaling 4 RS485B OUT RS485B, for RS485 negative differential signaling - Terminal block 2
Figure 4-10 shows the position of the terminal block in the SUN2000-33KTL/40KTL. Figure 4-11 describes the functions of the terminal block.
Table 4-4 Functions of the RS485 terminal blockNo.
Port Definition Function 5 RS485A IN RS485A, for RS485 positive differential signaling 6 RS485A OUT RS485A, for RS485 positive differential signaling 7 RS485B IN RS485B, for RS485 negative differential signaling 8 RS485B OUT RS485B, for RS485 negative differential signaling
- Terminal block 1
- RJ45 network port connectionThe RJ45 port needs to be connected using an RJ45 connector, as shown in Figure 4-12.
Table 4-5 lists the wire colors and functions.
Table 4-5 Cable colors and functionsCategory
Color
Function
1
White and orange
RS485A, for RS485 positive differential signaling
2
Orange
RS485B, for RS485 negative differential signaling
3
White and green
N/A
4
Blue
RS485A, for RS485 positive differential signaling
5
White and blue
RS485B, for RS485 negative differential signaling
6
Green
N/A
7
White and brown
N/A
8
Brown
N/A
Figure 4-13 shows how to connect the SmartLogger to the SUN2000 through an RS485 signal SPD. This section describes how to connect the SUN2000-33KTL/40KTL to the SmartLogger through a terminal block.
Procedure
- Prepare a cable with an appropriate length, strip a proper
part of the insulation layer from one end, and connect the end to
the SUN2000 terminal block.
- The DJYP2VP2-22 2x2x1 network cable or a communications cable with a cross sectional area of 1 mm2 and outer diameter of 14–18 mm is recommended.
- For details about how to strip and connect the cable, see the SUN2000 user manual.
- Strip an appropriate length from the other end of the cable using a wire stripper, as shown in Figure 4-14.
- Insert the bare core wires into the surge port of the RS485
signal SPD, as shown by (1) in Figure 4-15.
- The RS485 IN and RS485 OUT ports on the SUN2000 can both connect to the SmartLogger. This document uses the RS485 OUT port as an example to describe the connection between the SUN2000 and the SmartLogger.
- Verify that the RS485A (OUT) port on the SUN2000 connects to surge port 1 or 7 on the RS485 signal SPD, and that the RS485B (OUT) port on the SUN2000 connects to surge port 5 or 11 on the RS485 signal SPD.
- After connecting cables, wrap the part without an insulation layer using PVC insulation tape.
- Use a flat-head screwdriver to tighten the screws on the surge ports, as shown by (2) in Figure 4-15.
- Set Baud Rate to the same value for
the SUN2000 and SmartLogger.
- SmartLogger communications parameters can be set on the LCD or WebUI. For details, see Setting Communications Parameters or Setting RS485 Parameters.
- For details about the communications parameter configurations for the SUN2000, see SUN2000 APP User Manual.
