Com Ports; Com Port; Protocol - Omega RD8800 User Manual

Chapter 5 Programming
opening and for each switch closing. The default messages are OPEN and CLOSE. To turn Event messages
off set the message to "" (null) and it will not be displayed or logged.
NOTE: If the Event messages are changed after an Event file has been opened on the disk, it is necessary to
rename the Alarm file or use a new disk/card in order to reflect the new Event message in the file.
To program Event messages:
From the Digital I/O menu, use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Event msgs and press the ENTER
button. Use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to select the Event number (1, 2 or 3) and status (open or closed)
to be programmed and then press the ENTER button. You will be prompted with " XXXXXXXXXX ". Use the
alphanumeric keypad to enter your Event message and then press the ENTER button. The display will return
to the list of Event numbers/statuses. Repeat this process for each Event number/status that you want to
program. Once all Event numbers/statuses have been programmed, press the EXIT button to return to the
Digital I/O menu.

5.10 Com ports

The Com ports menu option allows the user to configure the serial port, set the Recorder Network ID, and setup the
modem attached to the RS232 port. The menu options are identical for any type of communication option, if any,
fitted to the Recorder. There are three choices of communication options: RS232, RS485 or Ethernet. Note that
the modem will only function with the RS232 option.
To program the Com ports options:
From the Program menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Com ports and then press the ENTER
button. The Com ports menu will be displayed with three options: Com Port, Network ID, and Modem Setup.
Use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to select the option you wish to program and then press the ENTER button. The
options are described in the following sections.

5.10.1 Com Port

The Com Port option allows the user to configure the serial port.
To program the Com Port:
From the Com ports menu, use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Com Port and press the ENTER
button. The Com Port Setup menu will have the following options: Protocol, Port setup, Network ID, Modem
Setup, and Ethernet. These options are described in the following sections.

5.10.1.1 Protocol

The Protocol option allows the user to assign the Protocol as Modbus RTU, Modbus ASCII, or Demand Data.
To set the Protocol option:
From the Com Port Setup menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Protocol and press the
ENTER button. The Protocol menu will be displayed with three options: Modbus rtu, Modbus asc and
Demand data. These options are mutually exclusive, and the highlighted option is active. The options
are described in the following sections.
5.10.1.1.1 Modbus RTU
Modbus RTU is a binary encoded output.
To select Modbus RTU:
From the Protocol menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to select Modbus rtu and press the
ENTER button to activate. Press the EXIT button to return to the Com Port Setup menu.
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