CTD Counter - English
This is a sample video. To access the full content,
please
Login
- Questions posted on Forums
- OpenPLC with LDmicro Tutorials - English
-
How relay got energized?
Madam/sir,Q1)How the Internal Relay Coil is energized by Up & Down Counter viz. CTU & CTD even in the initial state when neither XUp nor XDown is Pressed or say their initial states are 0?Q2)Can we compare an Instruction with a constant or variable in any of the compare or such kind of instruction, such as been done with CCounter? I want to mean that CCounter is an Instruction whereas Counter is the name given to it, so, can we directly compare some variable or constant of an instruction (say compare instruction's 0 (constant)) with another instruction (I am not saying variable or constant of the second instruction, I am saying the instruction itself, say CCount) directly, as being shown in the tutorial?
05-06M 20-30S sc256356
Answer last updated on: June 15, 2022, 3:38 p.m.
-
Initial sate of RRelay.
Why the initial state of Rrelay is 1 even if all other instructions have the initial state 0?
03-04M 40-50S sc256356
Answer last updated on: June 13, 2022, 12:17 p.m.
-
1
Overview of OpenPLC with LDmicro -
2
Installation of LDmicro on Linux -
3
Installation of LDmicro on Windows -
4
Introduction to LDmicro -
5
Simulation and Compilation -
6
OpenPLC Mainboard -
7
Programming OpenPLC -
8
OpenPLC Traffic Light and Switchboard Modules -
9
Normal Coil -
10
Normal Contact -
11
Negated Coil and Negated Contact -
12
Implementing NOT and AND logic gates -
13
Implementing OR and XOR logic gates -
14
Internal Relay and Output pin -
15
SET and RESET Coils -
16
OneShot Instructions -
17
Arithmetic Instructions -
18
Move Instruction -
19
Compare Instructions -
20
TON and TOFF Instructions -
21
RTO Timer Instruction -
22
CTU Counter -
CTD Counter -
24
CTC Counter -
25
OpenPLC Heater module -
26
A to D Converter Read Instruction -
27
PWM Instruction
Questions posted on ST Forums:
1273 visits
Outline:
Connection of SMPS and USBasp to the Mainboard Insert a Contact and a Coil Insert one more Contact parallel to existing Contact To the right of first Contact, insert a CTU To the right of second Contact, insert a CTD Name both counters with same name Insert a rung below Insert a GEQ and a Coil in the new rung Real-time simulation of CTD Make hardware connections for the CTD using Traffic light module and Switchboard module Working of CTD on hardware Where can an up-down counter be used?
| Width: | 826 | Height: | 628 |
|---|---|---|---|
| Duration: | 00:10:03 | Size: | 4.6 MB |
Show video info
