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Wiki source code of LX3V-8EX/16EX

Last modified by Wecon on 2025/09/03 21:02
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Wecon 1.1 1 This manual is applied to LX3V-8EX and LX3V-16EX digital input expansion modules.
2
3 = **1 Naming rule** =
4
5 Naming rule of LX3V I/O input expansion module:
6
7 (% style="text-align:center" %)
8 [[image:image-20220704140755-1.png]]
9
10 1. WECON PLC;
11 1. Main module;
12 1. The number of input points
13 1. Product type: E means expansion;
14 1. Expansion input(X)
15
16 = **2 Dimensions ** =
17
18 [[image:image-20220704141033-9.png||height="404" width="358" class="img-thumbnail"]] [[image:image-20220704141040-10.png||height="375" width="370" class="img-thumbnail"]]
19
20 (% style="text-align:center" %)
21 [[image:image-20220704141048-11.png||height="729" width="859" class="img-thumbnail"]]
22
23 1. Extension cable
24 1. Input indicator light of each channel
25 1. LINK: Communication indicator between PLC and expansion module
26 1. Expansion module name
27 1. Digital signal output terminal
28 1. Extension module interface
29 1. DIN rail mounting slot
30 1. DIN rail hook
31 1. Mounting holes (φ4.5)
32
33 |=(% scope="row" style="width: 72px;" %)Name|=(% style="width: 437px;" %)Description|=(% style="width: 151px;" %)Status|=(% style="width: 419px;" %)Event status
34 |=(% rowspan="3" style="width: 72px;" %)LINK|(% rowspan="3" style="width:437px" %)Communication indicator between PLC and expansion module|(% style="width:151px" %)Flashes|(% style="width:419px" %)Normal data transmission(normal communication)
35 |=(% style="width: 151px;" %)OFF|(% style="width:419px" %)Data transmission is abnormal, stopped, or failed
36 |=(% style="width: 151px;" %)ON|(% style="width:419px" %)Software is abnormal or hardware is faulty
37
38 (% class="box infomessage" %)
39 (((
40 **✎Note:** Except different I/O input points, LX3V-8EX and LX3V-16EX have the same dimensions and the same other functions.
41 )))
42
43 == Crimp terminals ==
44
45 (% style="text-align:center" %)
46 [[image:image-20220704140755-3.png||class="img-thumbnail"]]
47
48 1. Please use crimp terminals as indicated on the graph.
49 1. The tightening torque should be applied 5 to 8 Kg.cm.
50 1. Other terminals should be empty but only wiring terminals mention in this manual.
51
52 = **3 Output specification** =
53
54 |=**Item**|=**DC input**
55 |Model|LX3V-8EX or LX3V-16EX
56 |Output circuit|(((
57 (% style="text-align:center" %)
58 [[image:image-20220704140755-4.png]]
59 )))
60 |Input signal voltage|DC ± 24V ± 10% *1
61 |Input signal current|5mA/ DC 24V
62 |Input ON current|More than 3.5mA
63 |Input OFF current|Less than 1.5mA
64 |(% rowspan="2" %)Input response time|About 10ms
65 |X0 to X7 built-in digital filter, setting time 0 ~~ 60ms
66 |Input signal|Contactor input or NPN or PNP
67 |Circuit insulation|Optocoupler insulation
68 |LED|Lights when input ON
69
70 = **4 Instructions** =
71
72 The I/O input points on the module are named from the next X point, using the points on the host as endpoints. For example:
73
74 1. If the host is LX3V-1212MR-A and there are 12 input points (X0 to X7, X10 to X13).
75 1. If you expand an LX3V-16EX module on the host, the X points defined in the module on the host are X20 to X27 and X30 to X37.
76 1. If you expand multiple I/O input point modules on the host, the I/Os on the module will be named in the same order.
77
78 (% class="box infomessage" %)
79 (((
80 **✎Note: **When adding IO expansion modules to the host, in principle, the number of all input points X must not exceed 256 points. When adding IO expansion modules to the host, if the host needs to connect multiple IO modules, it is recommended to add a separate power supply board to the module for power supply.
81 )))
82
83 = **5 Program** =
84
85 [[image:image-20220704141326-13.png||class="img-thumbnail"]]
86
87 As shown in the example above, it is LX3V-3624MT with two LX3V-16EX modules and one LX3V-4DA module. The host has 36 input points X: X0 to X7, X10 to X17, X20 to X27. X30 to X37 and X40 to X43. The input point in the module ① called by host are X50 to X57 and X60 to X67, and the input points in the module ③ called by host are X70 to X77 and X100 to X107.
88
89 [[image:image-20220704141313-12.png||class="img-thumbnail"]]
90
91 As shown in the example above, it is LX3V-3624MT with one LX3V-16EX and two LX3V-4DA modules. The host has 36 input points X: X0 to X7, X10 to X17, X20 to X27, X30 to X37 and X40 to X43. The input point in the module ③ called by host are X50 to X57 and X60 to X67.