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Reference Manual
00809-0100-4052, Rev AA
Figure 3-2. Modbus Communications Page
Single Modbus Address: When this option is selected, this address is used by the Gateway for
Modbus RTU communications (not applicable to the 1552WU Gateway).
Multiple Modbus Addresses: When this option is selected, a new column for address will
appear on the Modbus mapping page.
Modbus TCP Port: This is the TCP/IP port the Gateway uses for Modbus TCP (Ethernet). To
change TCP/IP port settings, see the Internal Firewall section for more details.
Baud Rate: The data rate or speed of serial communications. This setting is only required for
Modbus RTU (not applicable to the 1552WU Gateway).
Parity: This setting determines parity (none, even, or odd) to use for error checking purposes.
This setting is only required for Modbus RTU (not applicable to the 1552WU Gateway).
Stop Bits: This setting determines the number (1 or 2) of stop bits to use when ending a
message. This setting is only required for Modbus RTU (not applicable to the 1552WU
Gateway).
Response delay time (ms): This setting determines how long (ms) the Gateway waits before
responding to a Modbus request. This setting is only required for Modbus RTU (not applicable to
the 1552WU Gateway).
Host Integration
Section 3: Host Integration
April 2015
15
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