Leviton A8812, Инструкция по установке и эксплуатации

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10
4 INSTALLATION
4.4
Verify connected devices: To verify that the Modbus devices are installed and reporting correctly, use
the Modbus status utility on the DAS. To do this test, follow these steps:
4.4.1
Press and release the menu (top) button on the DAS. The following will appear on the
LCD display:
4.4.2
Press the menu (top) button several more times until the LCD display shows the
following message:
4.4.3
Press the select (bottom) button on the server and the unit will begin the diagnosis of the
Modbus loop. After the check is completed, the unit will display the following message:
4.4.4
Verify that the number of devices located by the server (the total of OK, fail and new) matches
the number of devices actually installed and connected. For a first time installation, all devices
should appear as “new”. The A8812 Internal IO (pulse and analog inputs) appear as one
device in this list.
(Note: A “device” is the Modbus connected device, not necessarily the sensor. For example, an A8332
module with 4 sensors connected is only one Modbus device, not 8.)
For further information on the LCD
console, please review the console section of this manual.
4.4.5
The DAS completes a background scan for new Modbus devices every 2-5 minutes.
Increasing the RS485 Modbus timeout may increase the time required to detect new devices.
If the Modbus devices are connected after the server is booted up, the devices may not appear
on the screen for several minutes. In the worst case, allow up to 5 minutes for the Energy
Monitoring Hub to locate all the connected devices.
4.4.6
If all devices are reporting properly, it is now time to connect the server to the network or
phone line for remote reporting and configuration.
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