RS-485/RS-232 digital signal to analog signal D/A converter

                       RS232/RS485 digital signal to analog signal isolation D/A converters

Features:
● Low cost, small size modular design
● RS-485/232 interface, isolate and transform into standard signal output
● Output accuracy> 0.2%
● Can be remotely reconfigured for modules accuracy
● Output / communication interface isolation voltage :3000VDC
● Wide power supply range: 8 ~ 32VDC
● High reliability, easy programming, installation and wiring
● User programmable module address, baud rate, etc.
● Remote data acquisition by setting the host to read the JSD DA-A02
● Supports Modbus RTU

Applications:
● RS-232/485 bus industrial automation and control systems
● Industrial control signal isolation and long-term transmission
● Commissioning and control equipment operation
● The remote sensor signal transmission and signal reduction
● Industrial field actuator data given
● medical, industrial product development
● Intelligent building control, security engineering and other applications
● standard analog signal output
● 4-20mA signal output

GENERAL DESCRIPTION:
JSD DA-A02 series products realize the signal acquisition between sensor and host, to measure analog signals. JSD DA-A02 products can be applied to RS-232/485 bus industrial automation control system, 4-20mA/0-20mA/0-5V/0-10V signal output to control execution devices, control devices, and display instruments in the industrial field. Products include power supply isolation, signal isolation, linearization, A/D conversion and RS-485 serial communication. Each serial interface can connect up to 255 pieces JSD DA-A02 Series modules, communication using ASCII code or MODBUS RTU communication protocol, and its instruction set compatible with the ADAM modules, baud rate can been set by the code, with other manufacturers control module hang in the same RS-485 bus for easy programming.                                  
JSD DA-A02 series is based on SCM intelligent monitoring and control system, all of the users set configuration information such as Calibration value, address, baud rate, data format, checksum and status are stored in non-volatile memory EEPROM.
JSD DA-A02 series products according to industry standard design and manufacture .They are three-port isolation(input, output and power supply),and the isolation voltage between them is up to 3000 VDC, JSD DA-A02 series products have better Anti-interference ability, high reliability and wide operating Temperature Range (- 45℃～+85℃。)

Function Description:
JSD DA-A02 signal isolation D / A converter module can be used to output one channel voltage or current signal, can also be used to output two common ground current or voltage signal.
1. Analog signal output 12-Bit acquisition accuracy, all products signal input range have been calibrated. In use, users also can program calibration easily. About the specific current or voltage input range, please see product selection. when need two channels signal output, signal value must be the same.
2. Communication protocol
Communication Interface: one channel standard RS-485 communication interface, or one standard RS-232 communication interface, specify when ordering.
Communication Protocols: supports two protocols, characters protocol of the command set defined and MODBUS RTU communication protocol. Can be programmed using the kind of communication protocol, can be achieved with PLC, RTU of many Brands or computer monitoring system for network communication.
Data Format: 10 Bits. 1 start bit, 8 data bits, 1 stop bit.
Address: (0 to 255) and baud rate (2400, 4800, 9600, 19200, 38400 bps) can be set, the most long-distance about communication networks is up to 1200 meters, through the twisted-pair shielded cable. Communication interface of high anti-jamming design, ± 15KV ESD protection, communication response time is less than 100mS.
3. Anti-jamming
According to need to set the checksum. Module internal has transient suppression diodes, can inhibit a variety of surge pulse, protection module, and internal digital filter can also be well suppressed from the grid frequency interference.

data acquisition module data download：http://www.jsd-iae.com/down/2012731112254.pdf

data acquisition module picture: