Working With Function Blocks; Adding Function Blocks To The Circuit Diagram For The First Time - Eaton easy800 Manual

4.7 Working with function blocks

4.7.1 Adding function blocks to the circuit diagram for the first time

L: 1 C:1 B:7520
T 01Q1
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Program exchange between devices with memory card
Programs can be loaded and run on devices with the same device version
within the easy800 standard device family or devices with the same device
version within the MFD-Titan device family, even if the target device does
not have the necessary hardware requirements, see example.
Example: A program with NET operands (e.g. 3RN01) that was created for a
network-enabled MFD-Titan is loaded on an MFD-Titan without an easyNet
connection. On the MFD without the easyNet connection, all NET operands
supply the value zero.
This chapter explains the basic operating principles involved in working with
function blocks. A detailed description of all available function blocks can be
referred to in ￫ Section 5, "Function blocks" from Page 135. The function
blocks are used to simulate some of the devices used in conventional open-
loop and closed-loop control systems. You can first use the function block in
the circuit diagram and then define the actual and setpoint parameters for
the function block inputs and outputs in the function block editor. Or vice
versa: you create the function block in the function block editor, define the
parameters and use it then in the circuit diagram. With easy800 standard you
can insert up to 255 function blocks in the function block list and with
easy800-SWD 256 function blocks.
￫
There is no entry limit on easy800 standard. You must check the
maximum number of function blocks yourself otherwise a
function block error may occur.
Add a function block to the circuit diagram for the first time in the following
way:
▶ Press OK -> PROGRAM->PROGRAM>CIRCUIT DIAGRAM to enter the
circuit diagram display from the Status display.
▶ Use the
Í Ú ú í
buttons to move the cursor to a free contact or coil field.
▶ Press OK so that the easy800 device switches to entry mode.
▶ Then use cursor buttons
e.g. timing relay using the T identifier.
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
4.7 Working with function blocks
Í Ú
to select the required function block,
4 Wiring with 800
127