5. Programming on the device5.2 Circuit diagram display5.2 Circuit diagram displayThe circuit diagram, i.e., the program with which the easyE4 works, can be displayed inthe main menu under Program.Programs/Circuit diagramFigure 69: Circuit diagram displayYou wire contacts and coils of relays in the easyE4 circuit diagram from left to right,from the contact to the coil.The circuit diagram is created on a hidden wiring grid containing contact fields, coilfields and rungs. It is then wired up with connections.l Insert contacts in the four contact fields. The first contact field on the left is auto-matically connected to the voltage.l The coil field can be used to enter the relay coil being driven together with the cor-responding coil identifier and coil function. The coil identifier consists of a coil name,coil number, and, in the case of function blocks, the function identifier. The coil func-tion defines the method of operation of the coil.The cursor buttons can be used to change the contact fields. The number of thecircuit connection and the contact are displayed in the lower status line.There are 256 rungs available in the circuit diagram, for wiring contacts and coils.For greater legibility the circuit diagram of the easyE4 device shows two contacts orone contact plus coil in a row on each rung. A total of 16 characters per circuit con-nection and five circuit connections plus the status line can be displayed sim-ultaneously.122 easyE4 11/18 MN050009 EN www.eaton.com
