1 Introduction

LX6V-4PT (4-channal analog inputs), used for the acquisition of thermocouple input analog signals. Suitable for Wecon LX6 series PLC and LX6V-EM□-ECAT coupler.

LX6V-EM□-ECAT firmware version that supports this module: V2.022 and above, the corresponding XML version: 1.3 and above.

Upper computer software version that supports this module: 2.6. 236 and above, PLC firmware version:2.321. 1032 and above.

✎Note: The total power of expansion modules connected to LX6 series PLC and LX6V-EM□-ECAT cannot be greater than 48W.

2 Appearance and terminal description

2.1 ​​​​​Appearance and size

① LED; ② Terminal; ③ Expansion module interface; ④ Mounting hole: 2 places (Φ4.5); ⑤ DIN rail buckle.

2.2 Terminal description

The 4PT expansion module terminal are arranged as follows:

2.3 Installation

Please install the end cover on the right side of the last expansion module, align it with the module interface slot and connect it, as shown in the figure below:

2.4 Indicator

The 4PT expansion module LED is shown below:

3 Parameter Specification

3.1 Input Specification

3.2 Environmental specification

3.3 Software Specifications

3.4 Accuracy calculation

Within the working temperature range, when the temperature change rate is less than 0.3°C/min, the accuracy of this product = ADC sampling accuracy + line resistance error + contact impedance error. According to the measure principle, it is necessary to wait for the module to be powered on for 45 minutes before measuring.

4 Usage

This module is suitable for Wecon LX6 series PLC and LX6V-EM□-ECAT coupler. The two usage methods are as follow.

4.1 Use on LX6V/LX6S

(1 ) Add Module

Steps:

① Double-click the expansion module configuration to open the configuration interface;

② In the module list, select LX6V-4PT and double-click to add a module;

③ Double-click the module in the current machine slot to open the parameter configuration interface;

(2) Configuration module

     1) General configuration

① Temperature unit: Set the temperature unit for the module output. The supported temperature unit types are Celsius (℃) or Fahrenheit (℉), the default unit is: Celsius;

② Power frequency suppression: It can eliminate or reduce electromagnetic interference from the power system frequency (50Hz or 60Hz) on electronic equipment, especially signal acquisition systems. The power frequency suppression can be set to the module according to the actual application scenario.

     2) Channel configuration

① Enable channels: It can be set whether to enable the current expansion module channel;

② Sensor type: Set the sensor type connected to the module channel, the default sensor type is PT100, there are three sensor types supported by the PT module, which are: PT100, PT1000, CU50;

③ Filtering time: The supported filtering time is 0 to 100s, it is used to reduce fluctuations in channel temperature data. The default filtering time is 5s. Please choose the appropriate filtering time according to the requirements of actual application scenarios for channel output data;

④ Enable overlimit detection: Channel temperature data overlimit judgment switch, when overlimit detection is enabled, the upper and lower limits of temperature can be set. When the temperature output by the channel is greater than the upper limit of temperature or less than the lower limit of temperature, the state of this channel will output a channel overlimit warning;

⑤ Enable temperature offset: Channel temperature data offset enable switch. When temperature offset is enabled, the output temperature data of the channel will be offset;

     3) I/O mapping

By default, channels are mapped to R device according to the number of current module channels. The figure below maps modules CH1 ~ CH12 to R0 ~ R11 device. The data type of temperature value of channel is REAL. If want to display the temperature value of channel 1, the temperature value can be viewed after assigning a variable using the DEMOV instruction.

Supported status codes:

• 0x00: Channel normal;
• 0x40: Channel disconnection;
• 0x41: Channel overflow;
• 0x42: Channel overrun;

(3) Download configuration

After the module configuration is completed and the program is compiled correctly, the project can be downloaded (at present, it is not supported to download the extension module configuration separately). Before downloading, make sure that the connected expansion module model and configuration model are in the same order. Otherwise, the PLC will report an error and stop running.

4.2 Used on LX6V-EM□-ECAT coupler

(1) First  add EtherCAT device

According to steps ① to ④ in the figure below, right-click EtherCAT, and click [New]->[Import] to import the ESI device description file of the device;

After the import is completed, select the coupler according to the module model and location connected to PLC. (the figure below takes LX6V-EMB-ECAT as an example);

(2) Configuration module

Right-click the currently added coupler to add the expansion module mounted to the current coupler.

✎Note: When the configuration module is inconsistent with the actual mounted module, an error will be reported that the OP cannot be successful.

(3) Start configuration

① PT module temperature unit: Set the temperature unit for the module output. The supported temperature unit types are Celsius (℃) or Fahrenheit (℉), the default unit is: Celsius;

0: Degree Celsius (℃);

Others: Degree Fahrenheit (℉)

② PT module power frequency support: Set the power frequency suppression of the module to suppress 50Hz or suppress 60Hz, and the default suppression is 50Hz;

0: Suppress 50 Hz;

Others: Suppress 60 Hz;

③ reserve: Reserve

④ CHx sensor type: Set the type of sensor external to the channel;

Supported sensor types:

0: Disable

1: PT100;

3: PT1000

4: CU50;

⑤ CHx filter time: Used to specify the filtering time of the current channel. The supported filtering time is 0 to 100s, it is used to reduce the fluctuation of channel temperature data. The default filtering time is 5s;

⑥ CHx over limit detection: Overlimit detection enable configuration, 0: Overlimit detection detection is not enabled, others: Enable overlimit detection

⑦ CHx temperature upper limit: The upper limit value of the channel overlimit detection temperature;

⑧ CHx temperature lower limit: The lower limit value of the channel overlimit detection temperature;

⑨ CHx temperature offset: The offset of channel data, supported offset range:-300 to +300；

I/O mapping

The temperature and state of the module can be mapped to variables/device. For example, the following figure maps the temperature values of the CH0 to CH3 channels to the D0 to D7 device, and the status codes of the CH0 to CH3 channels to the D8 to D11 device.

Click save configuration and download the configuration to PLC.

5 Object dictionary

6 Error code

7 Version record