6712FR Refrigerated Sampler Section 5 Extended Programming

5.18.6 Serial Output

Programming the serial

output

PERIODIC

SERIAL OUTPUT?

YES NO

Serial ASCII data can be output through the controller’s interro- gator port. The output frequency is user-selectable: every 15 seconds, every minute, every 5 minutes, every 15 minutes, or by command.

To receive serial data as a periodic output:

1.Select YES at screen asking if you want periodic serial out- put.

PORT SETTINGS: 9600N81 4800N81 2400N81 1200N81

2.Select the appropriate baud rate setting in screen . Note that at all baud rates the data is sent with no parity, eight data bits, and one stop bit. If you have difficulty with the connection, try a slower baud rate.

SERIAL OUTPUT EVERY:

15 SEC 1 MIN

5 MIN 15 MIN

3.Select the desired output interval in screen.

4.Connect to the 6712 controller’s interrogator connector using a standard interrogator cable.

To receive serial data by command:

1.Select NO at the screen asking for periodic serial output .

2.Connect your computer to the 6712 controller’s interroga- tor connector with a standard interrogator cable, P/N 60-2544-040 (25 pin) or 60-2544-044 (9 pin).

3.Configure your communications software for a baud rate no higher than 19,200 kb, no parity, 8 data bits, and 1 stop bit.

4.From the computer’s keyboard, type “?” repeatedly until the 6712 controller determines the baud rate. Once the baud rate is known, the 6712 returns an identification ban- ner. This banner indicates that the connection is working properly.

5.Type DATA<CR> each time the data string is desired.

The serial data is in comma-separated-value format. Only the values that the sampler is set up to measure will be output in the data string. The string is terminated with a <CR><LF>. To read the data in the string, refer to Table 5-5.This serial data can also be accessed from a remote location using the optional dial-out modem (see Section 7).

Note

The internal modem is disabled when an interrogator cable is connected to the sampler’s Interrogator port. It cannot receive incoming calls, and the alarm dialout is rendered inoperative, while this cable is connected. Disconnect the interrogator cable in order to use the 4200T modem.

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Teledyne 6712FR manual Serial Output Programming the serial