SRAM memory card.
RAM capacity: 2MB. Input and output points: 4096 points.
Input / output data points: 8192 points.
Program capacity: 124k.
Basic command processing speed (LD command) S:0.075.
The length of time required to execute the instruction, the length of the user''s program, the type of instruction, and the speed of the CPU execution are very significant,
Generally, a scanning process, the fault diagnosis time,
Communication time, input sampling and output refresh time is less,
The execution time is accounted for the vast majority of Q80BD-J71LP21G User's Manual Q80BD-J71LP21G
The photoelectric coupler is composed of two luminous two extreme tubes and a photoelectric transistor.
Light emitting diode two: the input of a photo coupler and the change of electrical signal,
The light signal is generated by the light emitting diode, which is the same as the input signal Q80BD-J71LP21G User's Manual.
The working process of the input interface circuit: when the switch is closed, the diode light,
The transistor is then guided to the internal circuit and input signal under the irradiation of the light.
When the switch is off, the diode does not emit light, and the transistor is not on the way Q80BD-J71LP21G User's Manual. Internal circuit input signal.
It is through the input interface circuit to the external switch signal into PLC internal can accept the digital signal.
Photoelectric three levels: in the light of the light signal conduction, the degree of light signal and the intensity of the light signal MITSUBISHI Q80BD-J71LP21G Manual.
The output signal has a linear relationship with the input signal in the linear operating region of the photoelectric coupler MITSUBISHI Q80BD-J71LP21G Manual.
User program storage capacity: it is a measure of how much the user application can store the number of indicators.
Usually in words or K words as units. 16 bit binary number is a word,
Every 1024 words are 1K words MITSUBISHI Q80BD-J71LP21G Manual. PLC to store instructions and data in words.
General logical operation instructions each account for 1 words. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4. Battery replacement.
Initial voltage 3.0V.
Service life: 5 years.Express PCI bus.
Support Japanese, English OS.
SI/QSI/H-PCF/ broadband H-PCF cable.
Dual loop controller network (control station / common station).
MELSECNET/H network module capable of composing large scale flexible network system.
The MELSECNET/H network system includes the PLC network of the control station and the communication between the stations and the remote I/O network in the remote station remote I/O station.
Optical fiber loop system...... High speed communication of 10Mbps/25Mbps is realized.
The distance between stations, the length of the total cable length, strong anti-interference.
Coaxial bus system...... Using low cost coaxial cable, the network construction cost is lower than that of the optical fiber loop network.
Twisted pair bus system...... Combined with high performance price ratio network module and twisted pair cable,
The construction cost of network system is very low.
I/O control in the first class of open field network module.
CC-Link based on reliable field bus technology,
Able to transmit large number of bits data (such as ON/OFF information) and word data (such as analog information).
Consistency of CC-Link to maintain loop transmission,
And the cycle of transmission and information (instantaneous transmission) communication separately, so as to ensure the timeliness of.
Even if the information reaches saturatiion, it will not affect the link scan time Q80BD-J71LP21G Hardware.
DB A20 AnyWire system uses a separate transmission mode,
Sensor networks to achieve high speed and high reliability.
The transmission distance of 50m/200m/1km/3km can be selectted Q80BD-J71LP21G User's Manual.
1 modules can be up to 512 points of the input, 512 points of output (standard setting).
Even branch wiring, but also to detect transmission lines.