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User Manual MON20/20 Software for Gas Chromatographs
3-9000-745 SEPTEMBER 2010
4-80
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.
4.12 Communications
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).