Allen Bradley Modules 1794-OB8EP 1794 OB8EP Digital Flex Output Module

Product Specification

Allen Bradley Modules 1794-OB8EP 1794 OB8EP Digital Flex Output Module

Product Description:

The name of the tag will reflect the name you assigned the earlier. The "C" sub-group contains the contents of the configuration assembly, which is not currently used in the 1203-CN1. The "O" subgroup contains one entry for each word of output data you configured, and the "I" sub-group contains one entry for each word of input data you configured. The "O" sub-group corresponds directly to output data for a PLC-5 described on page 5-2 of the 1203-CN1 user manual (i.e., for most common configurations, word 0 is the logic command, word 1 is the speed reference, words 2 and 3 are the first pair of data links, etc.). The "I" sub-group is similar to the input data for a PLC-5, except that it is shifted by two words (i.e., word 2 is the logic status, word 3 is the speed feedback, etc.). Words 0 and 1 of the "I" sub-group represent network status data sent by the 1203-CN1 but not processed directly by the ControlLogix processor. At this point, I/O between the ControlLogix processor and the 1203-CN1 should be configured and running, and the meaning of the various I/O words should be understood. If you need further assistance in configuring I/O, please contact technical support.

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Product's Character:

For the requested packet interval, enter the number of milliseconds desired between each I/O message
between the ControlLogix processor and the 1203-CN1. The 1203-CN1 can handle a packet interval as
low as 5 milliseconds; therefore, make sure that this value is set to at least Click the "Finish" button to
complete the configuration of the I/O connection in RSLogix 5000. At this point, download your configuration to the ControlLogix processor, then exit RSLogix 5000. To actually schedule the I/O, you will need to start RSNetWorx for ControlNet. Once RSNetWorx starts, go online to the ControlNet network
containing the ControlLogix chassis and 1203-CN1 being configured. Turn on the "Enable Edits" check box, then save the network. This causes the I/O connection created in RSLogix 5000 to be scheduled in the ControlLogix processor. After a few seconds, the I/O LED on the ControlLogix processor and the module LED on the 1203-CN1 should stop blinking and remain green. If they do not, it could indicate a number of I/O-related problems

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