Modbus card quick guide – PowerWalker Modbus Card 2 User Manual
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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
OFF
2400bps
OFF
ON
4800bps
ON
OFF
9600bps
ON
ON
19200bps(default)
Parity
check
# 4
# 3
OFF
OFF
Even parity
ON
OFF
Odd parity
OFF
ON
No parity check 1 stop bits
(Default)
ON
ON
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.