Invensys 3503EN control module

Invensys 3503EN control module

Technical data of product parameters

In the 3503ENCIP system, input modules are not polled by a controller. Instead, they produce their data either upon a change of state or periodically. The frequency of update depends upon the options chosen during configuration and where on the network the input module resides. The input module, therefore, is a producer of input data and the controller is a consumer of the data. The controller can also produce data for other controllers to consume. The 3503EN produced and consumed data is accessible by multiple controllers and other devices over the EtherNet/IP network. This data exchange conforms to the producer/consumer model. .The requested packet interval (RPI) is the update rate specified for a particular piece of data on the network. This value specifies how often to produce the data for that device. For example, if you specify an RPI of 50 ms, it means that every 50 ms the device sends its data to the controller or the controller sends its data to the device. RPIs are only used for devices that exchange data. For example, a ControlLogix EtherNet/IP bridge module in the same chassis as the controller does not require an RPI because it is not a data-producing member of the system 3503EN; it is used only as a bridge to remote modulesThe endless-shaft feature is not supported for the single-turn encoder. This functionality is applicable only for the multi-turn Ethernet encoders. The round axis functionality or endless shaft functionality removes the restriction that the total resolution must be 2H times the steps per revolution. The shaft is considered an endless shaft. The steps per revolution are not configured directly. Instead the nominator and divisor for the number of revolutions are defined. The 3503EN total measuring range can be scaled from 1…1,073,741,824 as an integer. The encoder supports the function for round axes. During this process, the steps per revolution are set as a fraction. As a result, the total resolution does not have to be configured to 2H times the steps per revolution and can also be a decimal number.

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