Condition:New
Type:Logic ICs
HY8TC+
Enhanced 8-channel thermocouple isolation temperature acquisition module
with isolation between channels
1Product overview
The enhanced 8-channel temperature
isolation acquisition module with isolation between HY8TC+ channels is a
universal remote I/O product in the automation system. It supports 7 types of
thermocouple signals such as J, K, T, E, R, S, and B. Each The channel can
independently set the thermocouple type, and realize the isolated collection of
8 channels of temperature through the RS485 communication interface.
This module is a full industrial
design. It not only uses magnetic isolation technology to achieve electrical
isolation between the power supply, sensor input, and communication interface,
but also achieves 400V isolation between 8 channels, effectively suppressing
various serial mode and common mode interference in industrial sites , To
ensure work reliability and data accuracy. The built-in high-precision digital
cold junction temperature sensor and the use of accurate cold junction
compensation algorithms ensure the accuracy of temperature measurement. The
RS485 communication interface implements the MODBUS RTU communication protocol,
which can be directly connected to various PLCs, DCS systems, man-machine
screens and various configuration software.
2 Product
Features
● 8
thermocouple temperature sensor inputs, the channels are isolated from each
other, 400V isolation
● Support 7
types of thermocouples, such as J, K, T, E, R, S, B, etc., and each channel can
independently set the thermocouple type
● Imported
24-bit high-precision AD sampling chip
● Built-in
digital cold junction temperature sensor, using accurate cold junction
compensation algorithm
● Built-in
watchdog
● Full
software configuration, no need to open the cover jumper
● Built-in
comb filter, which can effectively filter out 50, 60Hz power frequency
interference
● Thermocouple
abnormality (broken couple)/over-range detection
● Acquisition
frequency up to 10Hz
● Full
industrial design, using magnetic isolation technology to achieve electrical
isolation of the three terminals of power supply, communication, and sensor
input
● MODBUS RTU
communication protocol
● DC10~30V
wide range power input
● The maximum
power consumption is only 0.8W
3 Product specifications
Restore factory settings
The product has the terminal cfg/int of factory configuration for forced recovery communication parameters.
When the communication parameters are forgotten or the communication parameters are changed by mistake, the ex factory configuration of communication parameters can be forced to be restored by using the terminal cfg/int, except for the configuration software to expand the search scope
The methods and steps are as follows:
(1) Ensure that the module has cut off the power supply;
(2) Short (connect) the int terminal (terminal 6) to the VIN terminal (terminal 10)
(3) The module is powered on, and the module power lamp will flash slowly twice and then it will be fast flash;
(4) Turn off the power supply and remove the short wiring;
(5) The module is powered on, and the communication parameters of the module are restored to the default factory configuration
Communication rate: 9600bps, stop bit: 1 bit, verification method: none, local address: 1
Main parameter configuration protection
The main parameters of the module are protected against error writing by hardware;
Only if the cfg/nt terminal is linked to vin+, the communication parameters can be modified and set, which can effectively prevent the external error from writing and modifying the communication parameters.
Warning: short circuit will not perform the above operation without power failure of the module, and it may cause permanent damage to the module!
