Omega Engineering #M3350/0101 manual Overview of Setup Tasks, Step Task Section This Manual

Introduction

1.3Overview of Setup Tasks

The following tasks must be performed in this sequence to use the CN8-SW application successfully with an RS-485 network. The same basic process applies to using the CN8- SW application to communicate with a single controller over an

RS-232 link. In the case of RS-232 links, the ÒnetworkÓ consists of only the controller and the PC.

Step	Task	Section in
		this Manual
1	Connect the controllers to the network.	2
		and controller
		manuals
2	Connect the personal computer to the network.	2
3	Install the CN8-SW software and log in.	3
4	Change the password on the default account ÒMULTIÓ (not required, but	3
	strongly recommended).
5	Set up operator accounts and assign passwords.	3
6	If any of the Omega Plus controllersÕ communication parameters have been	4
	changed from the factory defaults, use the front panel of each controller to	and controller
	set each controllerÕs configuration parameters to the defaults.	manuals
7	For controllers that support the original Omega Protocol, use each	4
	instrumentÕs front panel to set the controller to use 8 data bits, no parity,	and controller
	1 stop bit. Configure each controller to match the baud rate you plan to use	manuals
	for the network. If you plan to use the automatic Òfind controllersÓ option
	described in Step 11, set the Omega Protocol controllers to 9600 baud.
8	Use the front panel of all controllers (Omega Protocol and Omega Plus	4
	Protocol) to assign a unique address (between 1 and 254) to each controller.	and controller
		manuals
9	Configure the CN8-SW communication parameters and port selection. (The	4
	CN8-SW communication settings will override, but not change, the operating
	system settings for the selected port on your PC.)
10	Use the CN8-SW software to recognize each controller on the network	4
	automatically. In the process, the CN8-SW software will set the baud rate in
	all Omega Plus controllers to 9600. (By default, not all Omega controllers are
	set to the same baud rate.)3
11	Name the controllers (optional, but recommended). By default, each	4
	controllerÕs name will be its network address.
12	Save the .MCS (CN8-SW system) file so that the process of recognizing the	4
	controllers does not have to be repeated if CN8-SW is restarted.
13	Set up local alarms (optional).	5

At this point you are ready to configure new controllers, or to begin monitoring process variables with the CN8-SW computer.

To change setpoints, see Section 6.

To change controller mode, including use of Autotune, see Section 7.

3You had to use the controller front panel in Step 8 to set the baud rate of controllers that support the original Omega Protocol, because that protocol supports reading the baud rate, but not changing it.

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