Port Setup - Omega RD8800 User Manual

Chapter 5 Programming
5.10.1.1.2 Modbus ASCII
Modbus ASCII is an ASCII output.
To select Modbus ASCII:
From the Protocol menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to select Modbus asc and press the
ENTER button to activate. Press the EXIT button to return to the Com Port Setup menu.
5.10.1.1.3 Demand Data
This option allows the user to configure the unit to send a time stamp and the current value of any
selected data points to an ASCII serial printer. The data is sent when a selected event occurs. No
header is printed, and each event will have a separate line with the time stamp and each channel
separated with a semi-colon (;). For example, with channels 1 through 4 turned on to print, when 4
separate events occur, you will get an output similar to the following:
;;10:55:39;00001;00006;00011;00016
;;10:56:01;00001;00006;00011;00016
;;10:56:05;00006;00011;00016;00021
;;10:56:07;00007;00012;00017;00022
To set up Demand Data:
From the Protocol menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Demand data and press the
ENTER button. The Demand data menu will be displayed with two options: Points and Demand evnt #.
a. Points
The user may select which of the fifteen available points are to be sent to the printer. Ensure that
points you do not wish to send to the printer, or that have no data attached, are not turned on to send.
To turn the points on or off:
From the Demand data menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Points and press the
ENTER button. A pop up window will display "point 1=yes" or "point 1=no". Use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN
(↓ ↓ ↓ ↓ ↓ ) button to select the point you wish to turn on or off, and then press the YES button to turn it on or
the NO button to turn it off. The next point number will be displayed. Repeat until all points have been
set as desired and then press the ENTER button to return to the Demand data menu.
b. Demand Event (evnt) #
Demand Event allows the user to select which Event will trigger the unit to print. The Event
number is the digital input number for the external event (1, 2, or 3). Selecting 0 disables the
Demand Event option.
To program Demand Event:
From the Demand data menu use the UP (↑ ↑ ↑ ↑ ↑ ) or DOWN (↓ ↓ ↓ ↓ ↓ ) button to highlight Demand evnt # and
press the ENTER button. You will be prompted with "Demand evnt #? X". Use the UP (↑ ↑ ↑ ↑ ↑ ) or
DOWN (↓ ↓ ↓ ↓ ↓ ) button to select the desired Demand Event input number and press the ENTER button.

5.10.1.2 Port setup

The Port setup option allows the user to select a baud rate of 300, 1200, 2400, 4800, 9600, 19200, 38400,
57600 or 115200 and assign the bits per character, parity, and stop bits.
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