该产品支持访问控制列表（IP过滤器和端口过滤器）。根据不同角色的设置的密码可以保护用户界面的安全，防止恶意访问。符合ISA100.11a标准的端到端通信使用AES 128位进行加密。通过Achilles 1级认证，通信和安全的稳定性得到了验证。
|Number of Ports||1个端口||1个端口|
|功能规格||温度范围||运行时：-40 to +65°C（海拔高度：最高2000米）
：-40 to +55°C （海拔高度：高于2000米，最高3000米）
存储时： -40 to +85°C
|湿度范围||运行时：5 to 95 %RH （无结露）
存储时：5 to 95 %RH （无结露）
|电源||电压范围：10.8～26.4 V DC
额定电源： 24 V DC
|抗振性||0.15 mm P-P (5～58 Hz), 1 G (58～150 Hz)|
|耐冲击性||15 G 11 ms|
|抗干扰性||电场：≤3 V/m (80MHz～1GHz)
静电放电：≤ 4 kV（接触放电）、 ≤8 kV（空气放电）
|EMC: EN61326-1 Class A, Table 2, EN55011 Class A group1, EN61000-6-2|
|安全要求||CSA C22.2 No. 61010-1 (仅用于室内)|
38400, 19200, 9600 bps
Wireless Multi-Input Temperature Transmitter YTMX580 can accept inputs from up to 8 points, and contribute to your CAPEX cost reduction.
Eliminating the wire using wireless transmitter is the perfect solution for rotating equipment. It establishes data collection between the transmitter and the gateway by reliable communication even though the dryer was rotating.
One important risk to manage with regard to coal stacks is preventing fires due to spontaneous combustion.
Delayed Coker is a type of coker who's process consists of heating residual oil feed to its thermal cracking temperature in a furnace. The most important variable in industrial furnace control is temperature. Temperature is measured throughout the furnace in different zones and temperature effects the materials being manufactured and therefore must be precisely monitored to prevent deviations in quality of the final product.
- The distance is not so long, but there are many pipes and tanks ("Pipe Jungle") in the field.
- Had to avoid the obstacles and take care multi path condition.
Repeater is installed on high place between control room and monitor position. The extend cable is used for antenna of Gateway.
- Temperature Transmitter (YTA) x1, Pressure Transmitter (EJX) x2
Blending plays a key role in industries such as food, healthcare and chemicals etc. Temperature and vacuum measurements are very important in minimizing the moisture content to ensure the quality of the final product. Strictly maintaining them throughout the process ensures the final product yield.
Direct Reduction Iron (DRI) is one of the processes to reduce oxygen from iron oxide pellets for steel plant. More than 90% of DRI processes use heated LNG as process gas where PID control for temperature or interlock control is of vital importance.
Pressure measurement of tubeless tyres to monitor the air loss is one of the key performance tests in the tyre manufacturing units. Relocation of tyres from one testing rack to the other for various tests and frequent movement of the testing setup for conditional tests to various locations calls for cable free implementation for ease of handling.
- Oil level measurement of diesel tanks that feed fuel to their diesel generator's which are at three locations and 400 meters apart from each other.
- Also to measure level , pressure and flow to and from their main storage yard.
- Manual temperature reading requires walking about 130 m and climbing up and down elevated sections of the dryer stages.
- Multiple temperature measurement points along the various stages of the dryer require many cables to the control room.
- Very high humidity.
- Wireless temperature measurement
gateway x1, transmitter (YTA) x1
repeater x1: between gateway and YTA.
- High quality wireless communication was confirmed.
With repeater at center: The packet error rate was 0%.
Geothermal power plants create electricity from geothermal energy. These power plants are similar to other steam turbine station; however their heat source is that of the earth's core. The created steam is used to turn the turbine for the production of electricity. Technologies include Dry steam, Flash steam and Binary cycle power stations with Binary cycle being the most common geothermal plant in current production. In the process of geothermal power generation the facility needs to monitor various processes, as in this case steam line pressure sits in remote from control room's location.
A horizontal rotary miller used to grind the limestone rocks with metallic balls as grinding stones. This is used as the raw ingredient to produce cement powder. The temperature needs to be monitored in order to control the process and the quality of the final product. The user was using an induction temperature measurement based on a rail system that was very fragile and therefore unreliable.
Both bulk and finished inventories are stored in distributed tank farm remote from the site operations. These are difficult to instrument due to the infrastructure cost involved. These are then monitored daily by patrol rounds. While effective, this method does require a large skilled labor force to monitor all of tanks. This can impose an additional risk when the stored medium is of a hazardous nature.
Wireless technology has a long history, and it began around the time that James C. Maxwell theoretically predicted and then proved the existence of electromagnetic waves in the 1860s, and when Heinrich R. Hertz experimentally confirmed the actual existence of the electromagnetic wave in 1888.
In plant sites, there are various places such as those affording an unobstructed view like tank yards, and others surrounded by metal pipes and equipment obstructing the view (hereafter referred to "pipe jungles"), often seen in oil refinery and chemical on-site plants. The frequency band of radio waves used for field wireless communication is 2.4 GHz, which has high straightness and its ability to go around things can hardly be expected.
The FieldMate versatile device management wizard is PC software mainly used for configuring and adjusting field devices. Under the concept of "one tool for all," Yokogawa has been enhancing this software to support a wide range of field devices and field communication protocols.
In recent years, expectations for control systems using wireless communications have been increasing in the process control market. This is because these systems do not require power and communication wiring for field instruments, enabling reduced initial and maintenance costs, and easy installation.
- Yokogawa Field Wireless Solution (3.4 MB)
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- Field Wireless System Overview (1.9 MB)