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Summary of Contents for Wecon LX Series
- Page 1 WECON Programming WECON Technology Co., Ltd. Website: http://www.we-con.com.cn/en Technical Support: chengxf@we-con.com.cn Skype: Jason.chen842 Phone: 86-591-87868869 WECON Technology Co., Ltd.
- Page 2 NO contact would not operate. However, a NC contact would allow current to flow, hence the connected load would be active. Activating the coil reverses the contact status, that is, the current would flow in a NO WECON Technology Co., Ltd.
- Page 3 Y0 to also switch ON. If however,the limit switch X1 is activates, the output Y0 turns OFF. This is because the connection between the left and the right vertical lines breaks so there is no current flow. 4.Load, Load Inverse Program example: WECON Technology Co., Ltd.
- Page 4 For example, a counter with a constant of “8” must be triggered 8 times before the counter coil finally energizes. The following table identifies some basic parameter data for various timers and counters; WECON Technology Co., Ltd.
- Page 5 • In a dual coil designation, the coil operation designated last is the effective coil. That is, it is the status of the previous coil that dictates the behavior at the current point in the program. 6. And, And Inverse WECON Technology Co., Ltd.
- Page 6 It is preferable for each line or rung of ladder program to contain up to a maximum of 10 contacts and 1 coil. Also, keep the number of follow-on outputs to a maximum of 24. 7. Or, Or Inverse WECON Technology Co., Ltd.
- Page 7 It is preferable for each line or rung of ladder program to contain up to a maximum of 10 contacts and 1 coil. Also keep number of follow-on outputs to a maximum of 24. 8. Load Pulse, Load Trailing Pulse WECON Technology Co., Ltd.
- Page 8 - LDP is active for one program scan after the associated device switches from OFF to ON. - LDF is active for one program scan after the associated device switches from ON to OFF. 9. And Pulse, And Trailing Pulse Program example: Basic points to remember: WECON Technology Co., Ltd.
- Page 9 - ORP is active for one program scan after the associated device switches from OFF to ON. - ORF is active for one program scan after the associated device switches from ON to OFF. 2.11 Or Block Program example: WECON Technology Co., Ltd.
- Page 10 (see the right most program listing). Sequential processing limitations: • There are no limitations to the number of parallel circuits when using an ORB instruction in the sequential processing configuration (see the left most program listing). 12. And Block Program example: WECON Technology Co., Ltd.
- Page 11 (see the program listing). FX Series Programmable Controllers Basic Program Instructions 2 2-13 13. MPS, MRD and MPP Basic points to remember: - Use these instructions to connect output coils to the left hand side of a contact. WECON Technology Co., Ltd.
- Page 12 MPS, MRD and MPP instructions are present. • When writing a program in instruction format, it is entirely down to the user to enter all relevant MPS, MRD and MPP instructions as required. Multiple program examples: WECON Technology Co., Ltd.
- Page 13 ALL deeper nest levels. For example, MCR N5 resets nest levels 5 to 7. - When input X0=ON, all instructions between the MC and the MCR instruction execute. - When input X0=OFF, none of the instruction between the MC and MCR instruction WECON Technology Co., Ltd.
- Page 14 (see section 2.5.2). Nest levels can be duplicated but when the nest level resets, ALL occurrences of that level reset and not just the one specified in the local Nested MC program example: 15. Set and Reset WECON Technology Co., Ltd.
- Page 15 Program example: 16. Timer, Counter (Out & Reset) WECON Technology Co., Ltd.
- Page 16 (in this example) to the contents of data registers D1,D0 (32 bit setting data is required for a 32 bit counter). The output contact is reset and the current value of the counter is reset to ‘0’ when input X3 is turned ON. 16.3 High Speed Counters WECON Technology Co., Ltd.
- Page 17 PLC to PLC. Please check the specific availability of these devices on the selected PLC before use. For more information on high speed counters please see page 4-22. For PLC device ranges please see chapter 8. 2.17 Leading and Trailing Pulse Program example: WECON Technology Co., Ltd.
- Page 18 Usages for INV • Use the invert instruction to quickly change the logic of a complex circuit. It is also useful as an inverse operation for the pulse contact instructions LDP, LDF, ANP, etc. 19. No Operation WECON Technology Co., Ltd.
- Page 19 Immediately the current scan is completed the next scan begins. The whole process is a continuous cycle. Updating of inputs takes place at the beginning of each scan while all outputs are updated at the end of the scan. WECON Technology Co., Ltd.
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