How to Use Y Register Port through Wecon PLC Editor
1.General
The output relay Y represents physical outputs from PLC. OFF=0 is for open circuit, ON=1 is for closed circuit.
Depending on the output element can be divided into relay type, transistor type etc.
If connected IO expansion module, the port starts from the main module, according to the order of the numbers. But DO(digital output) is named in groups of eight. For example main module is Y0~Y7, Y10~Y14. The Y0 in DO expansion module corresponds to Y20, not Y15.
Devices numbered in: Octal, i.e. Y0 to Y7, Y10 to Y17.
2.Y list
If user want to use more Y port.User need to add LX3V-EY module.If user want to use many LX3V-EX module in one PLC.Please note some points below.
1.Different size PLC has different power limit.If LX3V-EY module works in PLC.it will occupy PLC power.So one PLC can not support too many LX3V-EY modules.
2.User can not use too many X ports in one PLC.PLC Editor limits X port number in PLC editor.LX3V only support Y0--Y255(octal). LX3VP PLC could support Y0------Y377(octal).
How to calculate the module.Please refer to the demo in the link below.
http://wecon.freeforums.net/thread/17...
3.Default transistor output PLC supports high speed pulses output at Y0 and Y1. PLC most support four channels’ high speed pulse output(Y0---Y3).
LX3V-4H PLC support Max 200KHZ at Y0 and Y1,and Y Max support 100KHZ at Y2 and Y3.But Y0+Y1+Y2+Y3 total pulse’s frequency can not more than 400KHZ. (4H:4*channels high speed pulses output)
LX3VP-4H PLC support 200KHZ at Y0--Y3.
4.If user want to use Y port to control other contactor.Transistor output’s PLC must use NPN wiring,just like picture below.Relay output can support both wiring.
3.Program
This is a simple demo for X port in LX3V PLC. In this demo.X0 will drive by a DC24V signal.If X0 is ON,Y1 will be ON.If X0 is OFF,Y1 will be OFF.