| Experion HS R530.1 User Assistance

# RS-485 devices

Before using your Control Products controllers, ensure that all communication parameters are configured correctly for each controller Also known as remote terminal unit, RTU. A generic term for a device that is used to control and monitor one or more processes in field equipment. The most common control and monitoring device in an access control and security system is an access control panel. Other devices include security monitoring panels, elevator controllers, and fire monitoring devices. Controllers include programmable logic controllers (PLCs), loop controllers, bar code readers, and scientific analyzers. See also: C200 controller, control processor, CPM, hybrid controller, network node controller, PLC.. Configure each controller to use the following communication parameters.

Parameter Also known as point parameter. A unit of information about a point. For example, an analog point includes parameters such as process variable parameter (PV), output parameter (OP) and setpoint parameter (SP). See also: analog point, output parameter, point, process variable, setpoint parameter. | Value
--- | ---
Number of Start Bits | 1
Number of Data Bits | 8
Number of Parity Bits | 0
Number of Stop Bits | 1

Make sure that each controller on the RS-485 network is configured for the same baud. When you are ready to configure the server The computer on which the Experion database software and server utilities run. See also: Experion server TPS., you will need to know at what baud each RS-485 network is using.

Every controller using the same connection to the server (RS-232 or RS-485) should have a unique Universal Modbus device identification number. Make a list showing what number has been associated with each of your controllers. You will need this information when using Quick Builder The Experion tool used to configure system components, such as standard points, Flex Stations, controllers (other than process controllers), electronic flow measurement (EFM), and printers. See also: controller, electronic flow measurement (EFM), Flex Station, process controller, standard point. to configure the server to use your Control Products controllers.