COMPANY INTRODUCE

COMPANY INTRODUCE

China Hongyang Group, is an integrated enterprise with the research & development, production and marketing of Fuel Dispenser and related accessories as well as service station concerning equipments. It concentrates on the relative manufacture & services of filling station such as Hongyang tax control Fuel dispenser, IC Card fuel dispenser, manage system of network for stations, submerge pump and liquid level devise. China Hongyang Group, designed supplier of SinoPec and PetrolChina, our HONGYANG products have been sold to over 50 countries in South-east Asia, Mid-east, Africa, Europe and well received in their markets.

C/DC convert type switch power is universally adopted in fuel dispenser. Diagram 3-13: Structural sketch map of liner voltage stabilizing power Diagram 3-14: Structural sketch map of switch stable voltage power adopted DC/DC converter Diagram 3-15: Structural sketch map of switch voltage stabilizing power adopted pulse transformer As an electronic component in fuel dispenser, stable voltage power is easily failed and possibly leads to whole trouble of fuel dispenser once appear doesn’t work. Generally, liner voltage stabilizing power adopts 78 series special voltage stabilizing integrated circuit, such as 7805 and 7812, simple design and convenient maintenance. In Diagram 3-16, a popular liner voltage stabilizing power circuit of fuel dispenser is illustrated. Switch power supply adopted pulse transformer will not introduced here, reference with relevant boos when necessary. Diagram 3-16: Circuit diagram of liner voltage stabilizing power These integrated circuits of LM257 fuel dispenser 6, LM4962 AND MC34063A are widely adopted in DC/DC transformer power supply. Intrinsic safety voltage stabilizing power supply in fuel dispenser This kind of direct current is able to employ in flammable and combustible environment only when mounted safety barrier. It also called intrinsic safety voltage stabilizing power supply illustrated in Diagram 3-18. Explosion-proof power supply is only used in explosion-proof box or an atmosphere without explosive gas, including its associated circuit. fuel dispenser It is allowed to employ intrinsic safety power in explosive atmosphere, but must in explosion-proof box or an environment without explosive gas. However, its associated circuit is permitted to use in explosive gas atmosphere if meet requirements concerned. The major difference between intrinsic safety power and explosion-proof power is whether install safety barrier. Diag fuel dispenser ram 3-17: Voltage stabilizing power circuit of DC/DC convertor Diagram 3-18: Sketch map of intrinsic safety power The function of setting a safety barrier i

ommunication (layer 6).　　4.1 Addressing　　Each device will be locally able to define its own node address that means: Subnet and Node　　numbers (S N). Different solutions are possible:　　 - dip switches or similar mechanical solution　　 - address provided by the application running in the host processor.　　- Subnet (S) Node address (N): 2 bytes　　 The choice is to use the Subnet address (S) to indicate the device type.　　 A list of all valid Subnet addresses is given in Engineering Bulletin Number 8.　　 N: All devices belonging to the same Subnet (so having the same type) are　　 identified by a unique Node address (N). The values are 1 to 127.　　Please note that the SubnetNode assignments must be implemented at the Application level.　　However to allow multiple devices to be interfaced via a single Echelon Neuron chip (i.e. An　　OPT that consists of a PIN Pad Card Reader Receipt Printer Journal Printer) it is　　permitte fuel dispenser d to use a different SubnetNode address in the application message than the actual　　network Neuron chip SubnetNode address.　　Example:　　When addressing a PIN Pad (S4:N1) that is connected to an OPT device with its Neuron chip　　configured as (S6:N1) the Transmitting Neuron chip will transmit at network level to the　　OPT device (S6:N1) but in the application message will use a Recipient Subnet address of 4　　and a Recipient Node address of 1.　　Where: S4:N4 = S4 is Subnet 4　　 fuel dispenser N1 is Node 4.　　It is therefore up to the application layer to decipher the incoming message and then route the　　data to its respective device.　　4.2 Application Protocol Parameters　　- Block Length:　　 The Block Length is set by the Max_Block_Length communication data element. The　　 range for the block length is 32 to 228. T fuel dispenser o allow messages longer than this value a　　 Block Number BL is included in the message.　　- C

by a problematic childless marriage. The couple—who had married for love in 1874 despite differences in class and parental opposition—had become so alienated that she had taken to spending her time apart in an attic room. He Penguin Viking; 486 barely noticed the severity of her last illness until it was too late. “Em, don t you pages; £25. To be know me?�were his revealing last words to her unconscious body, when he was published in America by Penguin Press in January finally summoned to her side (his first response, before mounting the stairs, was to tell the maid to straighten her collar). Buy it at fuel dispenser Amazon.com Amazon.co.uk If this Hardy seems cold, the great wave of love poetry to Emma that burst from him after her death was anything but. Delving into the nuanced complexities of attachment and alienation, guilt and loss, with a strange idiosyncratic spareness of style that seemed both modernist and unique to contemporaries, he revisited the subject obsessi fuel dispenser vely. This aroused the jealousy of his much younger second wife, Florence, an acolyte who, unlike Emma, fell in love with a rich and famous grand old man of letters, rather than an ardently striving newcomer. The son of working-class parents, Hardy grew up in the Dorset countryside, which he later recreated as the landscape of his novels. His father was a builder, his fuel dispenser mother a former servant with unusual literary tastes and formidable educational aspirations for her physically unprepossessing son. Forced by an unplan