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I. INTRODUCTION
 
SLI1 series of single-Bus intelligent temperature data logging devices, with the United States DALLAS first field bus technology, to achieve low-cost temperature-monitoring programme of the state of practical apparatus, can be widely used in real-time monitoring of temperature data collection of various applications.
SLI1 series of single-Bus intelligent temperature data logging devices can DS1820 series digital temperature sensor temperature data acquisition, display, alarm settings, data transmission and detection system so that the temperature roving high reliability, low cost and simple wiring结构. As a traditional temperature measurement system the ideal alternative, there are small in size, measuring point, network flexibility and so on. With wireless or GPRS and the scene-Bus Transfer (1 - wire) technology, will be scattered in different parts of the DS1820 node through a wired or wireless means to link up with the monitoring center, to reduce energy consumption and promote safe production purposes.
This equipment can be used: (1) SMT industry temperature monitoring data (2) Electronic Equipment Factory temperature monitoring data (3) cold storage temperature monitoring (4) storage temperature monitoring (5) GMP pharmaceutical monitoring system (6) temperature monitoring (7) telecommunications room monitoring (8) plant / Power Station Unit (9) power plants / power station unit (10) temperature monitoring process (11) of beer production process, such as temperature detection.
In order to facilitate the use of network engineering, the machines provide secondary development of communication protocol, support the secondary development. Users simply according to our protocol to the use of any software serial communications equipment for data and settings.
As shown in Figure programme, SLI1 through single-bus interface will be connected to fieldbus. Temperature sensors can DS1B20 chips, I can also matching the SLST Series Stainless Steel Packaging of protection of digital temperature sensors. Instruments on the bus can transfer six sensor (to be expanded, can be customized, extended to a maximum of 250 points). And each temperature sensors are received through the parallel bus on the way. Connection see instructions.
Wireless Applications
Wireless applications is the most simple application of an extension of the programme. The scene of the wiring, and the most simple application of the same programme. Equipment through the RS232 interface and GRPS / CDMA or other wireless devices connected, you can set up a wireless network. Field data will be sent to the server or data collection center, and the scene of the real-time data on-line monitoring.
Interface Description
You Tuwei equipment wiring behind the plate, such as the definition of panel-pin Right below:
Pin code definition of note
1 +5 V to supply cathode, please use the 5 V power supply
2 GND to the power anode
3 CANH the temporary absence of such functional equipment
4 CANL the temporary absence of such functional equipment
5 normally open relay output normally open points
6 foot public utility output relay
7 normally closed relay output normally closed points
8 VCC bus power supply cathode, the normal output value of 5 V, can not be less than 3.7 V
9 DQ1 bus signal access
10 DQ2 new logo sequence of sensor read-pin
11 GND bus negative power supply
12 RX standard Serial RS232 to 2 feet
13 TX standard Serial RS232 to 3 feet
14 GND to 5 feet Serial RS232 standards
Power
The input supply equipment for the DC 5V, with the power to randomly 5 V 1A. Use, check the voltage and polarity after the access equipment. 1 for the cathode, the power input voltage range :4.8-5 .5 V
RS232 interfaces
RS232 interfaces to a standard serial interface, the pin is defined as follows:
2 feet - RX 3 feet - TX 5 feet - GND, the interface can connect directly with the computer serial port, but also with other communications equipment with serial connection settings, use of non-cross-RS232 data lines.
Equipment back-pin
Bus Interface
Bus interface for the 3-line, this interface can transfer up to over 200 meters of the bus, the standard equipment of up to six single-bus access temperature sensors, wiring the following manner:
Bus interface with three-pin, the pin is defined as follows:
8 feet - are the power (VCC), this foot for the voltage output pins, voltage of 5 V
9 feet - signal line (DQ), single-bus signal line
11 feet - the power of negative
Sensor Interface test
<Sensor test interface> mainly used for reading into the new sensor to identify the access code, in the new sensor before the bus access, access <sensor test interface> read its serial number. Then access bus. Reading the sensor into the new mode of operations, see instructions.
Test Interface:
8 feet - are the power (VCC), this foot for the voltage output pins, voltage of 5 V
10 feet - signal line (DQ), the new sensor signal access feet
11 feet - the power of negative (GND)
Selection Guide
No. channels Model Remark
11:00 SLI1-1 / 1 single point instruments, sensors need to identify the serial number
2 6:00 SLI1-1 / 6 6点instruments, bus-style, run-time Automatic Identification
3 12:00 SLI1-1/12 12点instruments, bus-style, run-time Automatic Identification
4 20:00 SLI1-1/20 20点instruments, bus-style, run-time Automatic Identification
5 24 points SLI1-1/24 24 points and meters, bus-style, run-time Automatic Identification
Other non-standard channels can be customized according to user requirements
Random list
No. Name Type Quantity Remarks
An intelligent temperature data on-line tester SLI1-1 1 Taiwan
2 Monolithic Power DC5V 2A 1只
3 serial line 1
4 Manual (certification) 1
More detailed information, please call :021-51083595 or from the Advisory
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