MMC card is the new Siemens PLC program, data storage, and present several PLC should be used for the following products:Order product name6ES7 314-1AF10-0AB0 new CPU 3146ES7 new CPU 315-2AG10-0AB0 315-2DP6ES7 312-5BD00-0AB0 CPU 312C6ES7 313-5BE00-0AB0 CPU 313C6ES7 313-6CE00-0AB0 CPU 313C-2DP6ES7 313-6BE00-0AB0 CPU 313C-2PTP6ES7 314-6CF00-0AB0 CPU 314C-2DP6ES7 314-6BF00-0AB0 CPU 314C-2PTP6ES7 613-1CA00-0AE3 C7 6136ES7 635-2EC00-0AE3 C7 635 … Continue reading Siemens new PLC program, data storage cards
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Siemens PLC analog module usage questions
S7-200 analog input module (EM231,EM235) addressingEach analog expansion module, sorted by extension modules in the order, in which the analog input and output according to different sorting, respectively. Analog data format is one word, so the address must begin with an even number of bytes, precision 12-bit; analog values with the value 0-32000. Input format: … Continue reading Siemens PLC analog module usage questions
The difference between Siemens PLC and S7-300 S7-200, S7-400
The main class is one of the programmable logic controller and module difference was S7-200 belonging to the basic entry level, while S7-300 and S7-400 relative to the use of higher-end. Siemens plc is the serial number of the product.---->S7 200: in the electric control system for small, focused on logical control;---->S7 300: for larger … Continue reading The difference between Siemens PLC and S7-300 S7-200, S7-400
S7-300/400 PLC Indirect addressing
Using local variables DWORD LD20 as a pointer, the pointer address is P#4.3. Statement form can be INDIRECT when the status monitor (indirect) pointer address LD20 4.3. M [LD 20] corresponds to the actual address is M4.3.
S7-300/400PLC pulse method
Method one: CPU clock memoryCPU in the hardware configuration properties "Cycle/Clock Memory" in the "Clock Memory" setting the Memory Byte, you can look at to help, each one having a fixed frequency "Propreties" window click on the "Cycle/Clock Memory" (loop memory/clock) tab, you can set the "Scan cycle monitoring time" ( Scanning cycle monitoring time … Continue reading S7-300/400PLC pulse method
Pulse output (PLS/PLF) instructions
PLS (pulse) rising differential outputPLF (pulse) down along the differential output
PLC properties
1. Storage capacityStorage capacity refers to the user program memory capacity. User program memory capacity, you can develop complex programs. Generally, small PLC user memory capacity for thousands of words, and mainframe user memory capacity of up to tens of thousands of words.2. I/O pointsInput/output (I/O) points is acceptable to the PLC the sum of … Continue reading PLC properties
Difference between transistor outputs of the PLC and relay output
Relays are mechanical components have life, transistors are electronic components, only the age, no usage limits. Relay switching times per minute is also limited, and transistors are not. Transistors also have high current, such as 5A above.1. the load voltage and current typeType of load: transistor can only bring a DC load, and relays with … Continue reading Difference between transistor outputs of the PLC and relay output
Special features of Mitsubishi FX series PLC modules-data communication module
PLC communication module is used to complete with other PLC and other communications between intelligent control device or computer. Following simple FX series communication function expansion board, adapter and communication modules.(1) communication standard connection expansion board FX2N-232-BD FX2N-232-BD is RS-232C transmission PLC interface with other equipment. Such as PC, barcode readers or printers. Can be … Continue reading Special features of Mitsubishi FX series PLC modules-data communication module
Mitsubishi PLC password settings
Passwords can limit set PLC programming tool, display module, interface to read and write procedures, monitoring, change the current values, and so on, to protect programs or restrict the operator's procedures for monitoring purposes.Mitsubishi FX series PLC password set way: will PLC power, and through programming cable and computer connection, in programming software GX-DEVELOPER in … Continue reading Mitsubishi PLC password settings
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