MODBUS RTU/MODBUS ASCII Master slave station.
RS-232.
RS-422/485.
MODBUS interface module capable of connecting MODBUS compatible device such as temperature regulator, measuring device and so on.
Support MODBUS communication function, and can be compatible with the third party MODBUS to communicate from various station equipment.
Support MODBUS communication functions from the station, can communicate with the third party programmable controller MODBUS master device HA-LFS15K1MB
Through the linkage function, the master can be connected to the CH1 side (RS-232),
And through the QJ71MB91 and connected to the CH2 side (RS-422/485) of a number of stations for communication.
The RS-232 interface (1 credit on the 1 pass) MODBUS master device with multiple MODBUS communication from the station equipment. (only QJ71MB91)
Master / slave station functions can be used simultaneously. (only QJ71MT91)Output points: 64 points.
Output form: Transistor (drain type) output.
Rated open and close voltage, current: -.
Rated load voltage: DC12 ~ 24V.
Max load current: 0.2A/ point.
Response time: 1ms.
Common way: 32 point / public end.
Protection function (overload, overheat).
External wiring connection: 40 pin connector two.
Output module with mechanical relay contact mechanism,
Including the load voltage range of the relay and can be used for the output of the DC12~24V load transistor output type.
According to the load voltage, the output points of different, choose the most suitable user needs of the module.
Preventive maintenance based on the life of relay contact.
Relay output module can accumulate the number of ON of each output point.
Through the understanding of the relay contacts of the number of times, according to the relay life of preventive maintenance. 8 slots.
Requires 1 power modules.
Used to install the old section of the large A series PLC module.
Switch volume control is designed to,
According to the current input combination of the switch quantity and the history of the input sequence,
So that PLC generates the corresponding switching output,
In order to make the system work in a certain order.
So, sometimes also known as the order control.
And sequential control is divided into manual, semi-automatic or automatic.
And the control principle is decentralized, centralized and hybrid control three.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process. When the input port is closed,
Program in the implementation phase, the input end of a new state, the new state can not be read.
Only when the program is scanned, the new state is read.
A scan cycle is divided into the input sample, the program execution, the output refresh.
The contents of the component image register are changed with the change of the execution of the program.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to the adoption of centralized sampling.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.
System program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program to do the compiler to compile the process of interpretation.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.
HA-LFS15K1MB Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=HA-LFS15K1MB&select=5