Multi channel temperature inspection instrument

DM-6212 Multi channel Collector

1Multi channel temperature inspection instrumentFeatures

Multi channel input.

LED display/wide temperature LCD Chinese and English operation display.

Equipped with buttons for convenient on-site debugging and setting by users.

Isolation and lightning protection RS485 interface, standard MODBUS-RTU communication protocol.

DIN35 rail installation method and screw installation method.

2、 Main technical indicators

3、 Product wiring terminal

(1) 16 way thermal resistance thermocouple or mA/V wiring diagram

(2) Wiring diagram for two-wire/three wire transmitters, with passive mA signal connected to terminals B and C.

Attention: In case of any inconsistency between the wiring diagram on the product and the instruction manual, the wiring diagram on the product shall prevail.

4Multi channel temperature inspection instrumentProduct Selection

Multi channel collector DM6212- □□ - □□□ - □□□ ()

①② ③④⑤ ⑥⑦ ⑧⑨

Note: 1. When selecting, choose the function according to the wiring diagram. Due to the limited number of wiring terminals, only one function can be selected on the same group of terminals,

2. The selection must be complete, and any functions that are not selected must also be filled in with code. Example of selection: DM6212-T00-R0T0S-0D-16

3. This product can add an RS485 interface, occupying terminals 49 and 50; As a slave, it can also be connected to DM6240 relay output or mA/V transmission output module.

4. Can carry 1 or 2 relay outputs, reducing terminal occupancy by 1 or 2 input channels.

5、 Communication instructions

(1) This product is equipped with RS232 and RS485 interfaces for direct communication with computers. The RS485 standard communication distance is 1.5km, and multiple instruments can be mounted. The RS232 standard communication distance is 15m, and only one instrument can be attached. The TXD, RXD, and GND of the RS232 interface are respectively connected to the second, third, and fifth pins of the computer serial port. The data format consists of 1 start bit, 8 data bits, no checksum, and 1 stop bit. To avoid communication conflicts, the instruments are all in listening mode. The computer sends a command to a certain instrument at a specified address, and then waits for a period of time for the instrument to respond. After the instrument receives the correct command, it sends out the data. After sending, the instrument is in listening mode again. In the same system, instrument addresses cannot be the same, and baud rates must be consistent.

(2) Adopting the standard Modbus RTU communication protocol, using the 03, 04, and 06 function numbers. When using the configuration software touch screen, select a PLC with standard Modbus or Modicon (* * Kang) device, Modbus RTU address type, function number 3X or 4X can be used, register address starts from the first, data is a signed 16 bit integer, and when using Configuration King registers (i.e. 4x001, 4x000), other configuration software may start from 3x001 or 3x000. Users need to handle the decimal places according to their actual situation. It is recommended for user programming to define signed integer data, or by calculation. When the data is greater than 0X7FFF (decimal 32767), subtract the data from 65536 and then take a negative value. For example, if the communication transmission data is 0XFF9C (decimal 65436), 65536-65436=100, then take a negative value of -100. Professional algorithms can also use reverse addition 1. For long integer data such as cumulants, the data value is equal to high-order x 65536+low order, or the data type can be selected as long integer (Long), and the system will automatically calculate the cumulant. Register 4x1024 is a single precision floating-point number type for measurement values, following standard IEEE754, such as 0x42CAFBCF corresponding to 101.4918 (see also advanced parameter settings for four byte arrangement order that can be set).

6、 KTY84-130 Temperature Sensor Scale Table

(Range 0 ℃ -300 ℃)

7、 Alarm instructions

This instrument can be equipped with one or more relays, and each channel can be set with alarms or multiple channels can share a set of alarm parameters for common alarms. Using two parameters of alarm value hysteresis to avoid frequent relay actions. In addition, advanced passwords have alarm delay function.

Upper limit alarm: If the measured value is higher than the alarm value, it will be in an alarm state. If the measured value is lower than the alarm value minus the difference value, the alarm state will be released;

Lower limit alarm: If the measured value is lower than the alarm value, it will be in an alarm state. If the measured value is higher than the alarm value plus the hysteresis value, the alarm state will be released;

Turn off alarm value: Prohibit alarm. The alarm status values of each channel can be read through communication.

8、 Warranty

If it is a manufacturing quality problem caused by the factory, the instrument will be repaired free of charge from the date of leaving the factory. If the damage is caused by improper storage and use, the repair cost will be charged. Warranty period of 18 months