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UN 120PLC programming software

Compatible with Siemens 200 programming software.

It is recommended to use V4.0 STEP 7 MicroWIN SP9 version software for UN120/200 series CPU, select CPU224 or above for CPU type, connect the CPU online, and the software will automatically recognize it;

300 series CPU is recommended to use SIMATIC Manager, STEP7 V5.5 software.

Programming software and communication cable used by UN 120series PLC

Compatible with UN200 series programming software and communication cables

U DISK UPDATE

UN 120PLC digital input type

NPN/PNP，

The digital inputs on UN120/200CPU and expansion modules can be connected to source or sink sensor outputs, as long as the connection mode of the common terminal is changed accordingly (is the power supply L+ connected to the input common terminal, or the power supply M connected to the common terminal).

How to define the port when UN 120PLC communication port I is connected to screen

A terminal is RS485 signal +, B terminal is RS485 signal -,

For example, Kunlun on-state TPC7062K, serial port 7 pin is RS485+, 8 pin is RS485-

The hardware wiring is: A-7 B-8

UN124XP analog input signal type, analog addressing

The voltage input, if it is a current signal, should be connected in parallel with a precision resistor. The product is equipped with a precision resistor when it leaves the factory.

UNl20 series CpU has two serial ports, whether the two serial ports support MODBUS and ppl communication protocols

A teYes, it is the same as the communication protocol supported by UN200CPU.

UN 12Whether UNl20 series transistor output CPU has pulse output function

Yes, two Q0.0, Q0.1, 20K pulse outputs

UN120 series CPU expansion module function

124CPU can expand 3 modules, 124XP can expand 4 modules

High-speed counter function ofUNl20 series PlC

YesOnly supports single-phase counter, 2 channels 20K

Number oftimers/counters supported by UN120 series PlCs

Both are 256, the same as the number supported by UN200PLC

Does UN120/200 series PlC support clock function?

support, clock built-in

Data and clock storage time after UN200/120 series PlC is powered off

Data retention: using FLASH storage technology, it can keep power off for a long time,

No battery support, data can be stored for up to 10 years;

Clock Hold: The battery or capacitor keeps the clock data, when the battery or capacitor is dead,

The clock data is restored to the factory value.

How to realize Ethernet communication between UN200/1200 series CPU and upper computer

DataIt can be realized by adding UNNET-PPI, namely PPI, to the Ethernet module. This module supports the TCP driver of Siemens, which can realize the communication with the host computer software, such as: WINCC, Kingview, Power Control, MCGS, etc.

The order number is UN 901-3EB30-0XA0

Can UN20 series modules be hung behind UN200CPU?

DatNo, UN200 series and UN120 series products cannot be mixed

What is the reason for the UN200/120CPUSF(system fault) light on?

1) The CPU is not functioning properly or the hardware components are damaged. At this time, if Micro/WIN is still online, you can enter PLC>Information Online View in the command menu, and you can see the specific error description;

2) Program errors, such as entering an infinite loop, or the scanning time caused by programming is too long, and the "watchdog" timeout will also cause the SF light to be on;

3) The CPU power supply voltage may be too low, please check the power supply voltage.

Is the PlD adjustment function ofUNl20 series PlC and UN200 series PlC the same?

1) T120 series PLC supports PID function, but does not support self-tuning

200 series PLC supports PID function and self-tuning

What is the current ofthe UN200CPU local 24Voutput sensor

1) T1800mA, generally used to power expansion modules

WhatUN200 relay output CPU, how to connect the output to the load

UN200 relay output CPU, the output type is dry contact, the working voltage is 24V/220V,

When connecting the load, first connect the 24V/220V voltage in series

Can UN200 series digital relay output modules be connected to transistor loads?

UYes, but the action frequency cannot exceed 1Hz, that is, 1s 1 action

UN200 series PlC high-speed counter function

There are 6 high-speed counts in total, 6 single-phase counts in total, and the highest frequency is 30K;

4 bi-phase counts, the highest frequency is 20K

UN SMART screen dedicated adapter DIP switch settings

UN 232-MPI screen adapter, if the MPl end is extended, what are the extended pins?

2, 3, 7, 8, the adapter needs the CPU to power it,

2 (24V power supply ground), 7 (24V power supply positive pole) provides 24V power supply to the adapter,

3, 8 are RS485 communication pins

UN 300 series modules do not support hot swapping

1. UN300 modules can be used for non-hot-plug rails, but do not support hot-plug.

After the module is removed, the CPU may not find the following modules

2. Hot plugging requires dedicated hardware support. Hot-plugging is supported using hot-plug rails and base modules.

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