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Modbus Card Quick Guide V.2.5

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

4.2 Communication Format Configuration

Function

Bit Setting

Meaning

Baud

rate

# 2

# 1

OFF

2400bps

OFF

4800bps

OFF

9600bps

19200bps(default)

Parity

check

# 4

# 3

OFF

Even parity

OFF

Odd parity

OFF

No parity check 1 stop bits

(Default)

No parity check 2 stop bits

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.

1 2 3 4 5 6 7 8 9 10

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