Connecting A Modbus Master Device - Accusonic 8510+ series Reference Manual

4-10 Accusonic Model 8510+ Series Flowmeter

Connecting a ModBus Master Device

For remote access to the flowmeter from a ModBus Master Device, there are three ports that can be utilized
for this connection. Inside the swing panel, there are 4 external connection ports that are located veritically
to the right of the DSP board. RS-232, RS-485, or Ethernet (TCP/IP) can be used with a ModBus Master
Device.
RS232
The Device ID parameter must be set by the user in order for the Modbus Master Device to communicate
with the flowmeter. The Device ID parameter can be found by accessing the System icon on the HOME
page, then pressing Page 1. Additionally, the baud rate should be verified or selected by pressing Page 2 in
the same menu. The unit comes factory set for 9600 baud rate.
RS-485
The Device ID parameter must be set by the user in order for the Modbus Master Device to communicate
with the flowmeter. The Device ID parameter can be found by accessing the System icon on the HOME
page, then pressing Page 1. Additionally, the baud rate should be verified or selected by pressing Page 2 in
the same menu. The unit comes factory set for 9600 baud rate.
Ethernet (TCP/IP)
The Device ID parameter must be set to 1 by the user in order for the Modbus Master Device to
communicate with the flowmeter over TCP/IP. Additionally, the TCP/IP connection values must be set
appropriately (IP Address, Subnet Mask, and Gate Way). The Device ID and TCP/IP parameters can be
found by accessing the System icon on the HOME page, then pressing Page 1.