Emerson Process Management 3-9000-745 manual Communications

User Manual	MON20/20 Software for Gas Chromatographs
3-9000-745	SEPTEMBER 2010

Note

No two sequences can be activated by the same discrete input.

7.Select the type of analysis the detector should perform when following the sequence. There are two options:

•Analysis - The detector performs a real analysis of the streams.

•Validation - The detector performs a test analysis to verify that it is working properly.

8.To save the changes without closing the window, click Save. To save the changes and close the window, click OK.

4.12Communications

Use this function to configure and manipulate the communication settings the GC uses to connect with a Data Collection System (DCS).

To add a new communications port setting to the Communication window, click Insert before. A new row will be added to the Communication table.

The following table lists the parameters that can be edited for the communications port setting:

Name	Description
Label	The name of the group of settings.
ModBus Id	Identification number of the ModBus device.
Baud Rate	The baud rate setting. Options are: 1200, 2400, 9600, 19200, 38400, and 57600.
	For high performing PCs, set the baud rate to 38400. If you experience a
	communications failure at this rate, set the baud rate to 9600. Baud rate settings
	less than 9600 may result in real-time delivery that is unacceptably slow.
Data Bits	The number of data bits. Options are 7 and 8 (default).
Stop Bit	The number of stop bits. Options are 1 (default) and 2.
Parity	The parity check method. Options are None (default), Even and Odd.
HW Flow Cntrl	Allows you to enable or disable hardware handshaking signals (RTS/CTS).

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