SmartGen SG485-2CAN Communication Interface Conversion Module User Manual

June 3, 2024
SmartGen

Communication Interface Conversion Module
User Manual 

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Table 1 Software Version

Date Version Note
2021-08-18 1.0 Original release.
2021-11-06 1.1 Modify some descriptions.
2021-01-24 1.2 Modify the error in Fig.2.

OVERVIEW

SG485-2CAN is a communication interface conversion module, which has 4 interfaces, namely RS485 host interface, RS485 slave interface and two CANBUS interfaces. It is used to convert 1# RS485 interface to 2# CANBUS interfaces and 1# RS485 interface by DIP switch to set address, providing convenience for customers to monitor and collect data.

PERFORMANCE AND CHARACTERISTICS
Its main characteristics are as follows:
─ With 32-bit ARM SCM, high hardware integration, and improved reliability;
─ 35mm guide rail installation method;
─ Modular design and pluggable connection terminals; compact structure with easy mounting.

SPECIFICATION

Table 2 Performance Parameters

Items Contents
Working Voltage DC8V~DC35V
**** RS485 Interface Baud rate: 9600bps Stop bit: 2-bit Parity bit: None
CANBUS Interface 250kbps
Case Dimension 107.6mmx93.0mmx60.7mm (LxWxH)
Working Temperature (-40~+70)°C
Working Humidity (20~93)%RH
Storage Temperature (-40~+80)°C
Protection Level IP20
Weight 0.2kg

WIRING

SmartGen SG485-2CAN Communication Interface Conversion Module
-Diagram

Fig.1 Mask Diagram
Table 3 Indicators Description

No. Indicator Description
1. POWER Power indicator, always on when powered on.
2. TX RS485/CANBUS interface TX indicator, it flashes 100ms when sending

data.
3.| RX| RS485/CANBUS interface RX indicator, it flashes 100ms when receiving data.

Table 4 Wiring Terminals Description

No. Function Cable Size Remark
1. B- 1.0mm2 DC power negative.
2. B+ 1.0mm2 DC power positive.
3. **** RS485(1) B(-) **** 0.5mm2

controller, TR can be short connected with A(+), which is equivalent to connecting 120Ω matching resistance between A(+) and B(-).
4.| A(+)
5.| TR
6.| RS485(2)| B(-)| 0.5mm2| RS485 slave interface communicates with PC monitoring interface, TR can be short connected with A(+), which is equivalent to connecting 120Ω

matching resistance between A(+) and B(-).

7.| A(+)
8.| TR
9.| CAN(1)| TR| 0.5mm2| CANBUS interface, TR can be short connected with CANH, which is equivalent to connecting 120Ω matching resistance between CANL and CANH.
10.| CANCEL
11.| CANH
12.| CAN(2)| TR| 0.5mm2| CANBUS interface, TR can be short connected with CANH, which is equivalent to connecting 120Ω matching resistance between CANL and CANH.
13.| CANAL
14.| CANH
/| USB| Software download and upgrade interface| ****

/

| **** /

Table 5 Communication Address Setting

Communication Address Setting


Address| RS485(2)| Reserved
DIP Switch No.| 1| 2| 3| 4| 5| 6| 7| 8
the corresponding relation between dial switch combination and communication address| 000: 1| **** Keep the DIP address, it has no effect on communication no matter how it is set.
001: 2
010: 3
011: 4
100: 5
101: 6
110: 7
111: 8

ELECTRICAL CONNECTION DIAGRAM

SmartGen SG485-2CAN Communication Interface Conversion Module
-Diagram1

OVERALL DIMENSION AND INSTALLATION

SmartGen SG485-2CAN Communication Interface Conversion Module
-Diagram2

SmartGen — make your generator smart
SmartGen Technology Co., Ltd.
No.28 Jinsuo Road
Zhengzhou
Henan Province
P. R. China
Tel: +86-371-67988888/67981888/67992951
+86-371-67981000(overseas)
Fax: +86-371-67992952
Web: www.smartgen.com.cn/
www.smartgen.cn/
Email: sales@smartgen.cn

References

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