Modbus Card
Modbus Card

The Modbus card provides UPS and PV inverter systems with the functionality of communication with PCs through MODBUS protocol:  Implements MODBUS RTU protocol  Provides MODBUS functions including read Holding Registers and write Registers. 

Scudo 400VA/600VA Standby UPS
Scudo 400VA/600VA Standby UPS

• Real-time control and monitoring of multiple UPSs or inverters

  via RS-485 communication port

• Supports Modbus RTU protocol

• Provides MODBUS functions including read Holding Registers

  and write Registers

• Provides surge protection


Model

Modbus

Protocol Support

Modbus RTU

Power Input

12 V

Power Consumption

0.5 watt (max.)

Operating Temperature

0 ~ 40°C

Operating Humidity

0 ~ 95%

Network Connection

RS-485 and RS232/RS-485 through isolated RJ45 port

Baud Rate

2400 bps/4800 bps/9600 bps/19200 bps

Parity

Even/Odd/None

PHYSICAL

Dimension, D x W x H 

84 x 43 x 14mm

Net Weight (kgs)

34.7 

* Product specifications are subject to chan


                                          Modbus Card Quick Guide                                                                                                       Thank you for purchasing Modbus Card. This manual contains instructions and warnings that should be followed during the installation, operating and storage of the card. Please keep this manual for further reference.


Special Precautions

 1)If the card must be stored prior to installation; storage must be in a dry place

2) The admissible storage temperature range is from -10ºC to +70ºC.


1、Product Overview

 

1)RS-485 port

2)Golden finger

3)Address switch

4)Communication setting

5)Resistance switch


2. Product Introduction

The Modbus card provides UPS and PV inverter systems with the functionality of communication with PCs through MODBUS protocol:

1) Implements MODBUS RTU protocol

2) Provides MODBUS functions including read Holding Registers and write Registers.

3) Provides RS485 interface

4) Provides surge protection


3. Installation and Operation

Follow below steps to install and use this modbus card:

 1). Configure Modbus ID (Refer to section 4.1 for the details)

 2). Configure communication format (Refer to section 4.2 for the details)

 3). Insert this modbus card into intelligent slot

 4). Connect modbus card to computer with RJ45 cable, and it is not necessary to turn the UPS or PV inverter off. (Refer to section 4.5 for the details)


4. Configuration

  4.1 Machine ID Configuration

      There are eight bits to present ID of each card. Use SW1 to set machine ID. From left to right, it’s 8 to 1. As shown, when the switch is pushed down, the bit is set to “one”. Otherwise, the bit is set as zero. The ID of modbus card is set to 0x01 as chart. Please check appendix for detailed ID no. and SW1 setting


  4.2 Communication Format Configuration


4.3 RS-485 Resistance Configuration


4.4 Interface Configuration

RS-485 Pin Configuration

4.5 Connection

    First, please use one RS485 to RS 232 converter or RS-485 to Modbus/TCP converter as media converter between Modbus card and computer. Please follow below chart for wiring connection between RJ45 and media converter:


Wiring connection between RJ45 and media converter


Then, follow below diagram to connect personal computer:

            

Using RS-485 to RS-232 converter     Use RS-485 to Modbus/TCP converter


5. Multiple Monitoring

One modbus card only can be used in one UPS at the same time. When each UPS installed with one modbus card, up to 31 UPSs can be monitored from one computer.


APPENDIX: Machine ID Configuration Table (SW1) √=ON ×=OFF