CN217721209U

CN217721209U - Torch data processing distributor based on Modbus protocol

Info

Publication number: CN217721209U
Application number: CN202220963781.4U
Authority: CN
Inventors: 穆玉朋; 李启勇; 张秀平; 范洪波; 武凯
Original assignee: Shandong Runyin Biochemical Co ltd
Current assignee: Shandong Runyin Biochemical Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-11-01
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a torch data processing distributor based on Modbus agreement, torch scene PLC data passes through RS485 communication cable and is connected with fiber optic transceiver, convert the fiber optic transceiver receiving terminal that light signal transmitted the transfer station through the optical cable into through fiber optic transceiver transmitting terminal, convert the Modulus agreement again and transmit data through RS485 communication cable and RS485 data processing distributor, RS485 data processing distributor gives three sets of DCS with data sharing, convert the light signal into through fiber optic transceiver transmitting terminal through the optical cable respectively and transmit the fiber optic transceiver receiving terminal of gasification DCS, convert Modulus agreement data into again and pass through net twine and three sets of gasification DCS switch communications. The serial port data are forwarded and queued for management, so that at most 3 upper computers and the same RS485 lower computer can communicate simultaneously, data packet collision and packet loss are avoided, and the requirement that multiple upper computers communicate with one serial port device simultaneously is thoroughly met. The utility model has the characteristics of simple structure, it is with low costs, safe and reliable.

Description

Torch data processing distributor based on Modbus protocol

Technical Field

The utility model relates to a torch data processing distributor based on Modulus agreement.

Background

At present, data transmission between the domestic torch field PLC and the DCS is mostly single-to-single transmission, data communication between the torch field PLC data and the DCS realizes one-to-many sharing through a data processing distributor, data collision package loss is avoided, and the requirement that multiple sets of DCS communicate with one serial port device at the same time is thoroughly met.

Disclosure of Invention

The utility model aims at providing a torch data processing distributor based on Modbus agreement carries out data sharing to many sets of DCS simultaneously and one set of PLC equipment to safe and reliable.

The purpose of the utility model is realized like this:

the PLC data of the torch site is connected with an optical fiber transceiver through an RS485 communication cable, converted into optical signals through an emitting end of the optical fiber transceiver and transmitted to a receiving end of the optical fiber transceiver of the transfer station through an optical cable, then converted into a Modulus protocol and transmitted to data through an RS485 communication cable and an RS485 data processing distributor, the RS485 data processing distributor shares the data to three sets of DCS, respectively converted into the optical signals through the emitting end of the optical fiber transceiver and transmitted to the receiving end of the optical fiber transceiver of the first-stage gasification DCS through the optical cable, and then converted into Modulus protocol data and communicated with a first-stage gasification DCS switch through a network cable; the second-stage gasification is converted into optical signals through an optical fiber transceiver transmitting end and transmitted to an optical fiber transceiver receiving end of the second-stage gasification DCS through an optical cable, and the optical signals are converted into Modulus protocol data to be communicated with a second-stage gasification DCS switch through a network cable; and the light signals are converted into optical signals through the transmitting end of the optical fiber transceiver after the third-stage gasification, transmitted to the receiving end of the optical fiber transceiver of the third-stage gasification DCS through an optical cable, converted into Modulus protocol data and communicated with the third-stage gasification DCS switch through a network cable. The serial port data are forwarded and queued for management, so that at most 3 upper computers and the same RS485 lower computer can communicate simultaneously, data packet collision and packet loss are avoided, and the requirement that multiple upper computers communicate with one serial port device simultaneously is thoroughly met.

Drawings

Fig. 1 shows a schematic structural diagram of a torch data processing distributor based on a Modbus protocol, and the present invention is further explained with reference to fig. 1.

Detailed Description

Fig. 1 shows the utility model discloses torch data processing distributor based on Modbus agreement, many host computers carry out the technique that communicates with a serial ports equipment simultaneously, and required equipment brief notes torch PLC 1, RS485 data processing distributor 2, first stage gasification DCS 3, second stage gasification DCS 4, third stage gasification DCS 5, fiber transceiver 11.

The device comprises a torch PLC 1, an RS485 data processing distributor 2, a first-stage gasification DCS 3, a second-stage gasification DCS 4, a third-stage gasification DCS 5 and an optical fiber transceiver 11.

The torch PLC 1 is connected with the optical fiber transceiver 11, the optical fiber transceiver 11 is connected with the RS485 data processing distributor receiving end 21 of the RS485 data processing distributor 2, the RS485 data processing distributor serial port 1 22 of the RS485 data processing distributor is connected with the first-stage gasification DCS 3 through the optical fiber transceiver 11, the RS485 data processing distributor serial port 2 23 of the RS485 data processing distributor is connected with the second-stage gasification DCS 4 through the optical fiber transceiver 11, and the RS485 data processing distributor serial port 3 24 of the RS485 data processing distributor is connected with the third-stage gasification DCS 5 through the optical fiber transceiver 11;

the RS485 data processing distributor 2 is provided with an RS485 data processing distributor receiving end 21, an RS485 data processing distributor serial port 1 22, an RS485 data processing distributor serial port 2, and an RS485 data processing distributor serial port 3.

The working principle is as follows:

the PLC data of the torch site is connected with the optical fiber transceiver through the RS485 communication cable, converted into optical signals through the transmitting end of the optical fiber transceiver, transmitted to the receiving end of the optical fiber transceiver of the transfer station through the optical cable, converted into a Modulus protocol, transmitted to the data through the RS485 communication cable and the RS485 data processing distributor, shared by the RS485 data processing distributor to the three sets of DCS, and the communication between the three sets of DCS upper computers and the same torch site PLC lower computer is realized through the forwarding and queuing management of serial port data.

The utility model has the characteristics of equipment is simple, only needs an RS485 data processing distributor, four to optical fiber transceiver and some communication cable, optic fibre just can realize data sharing to safe and reliable, low cost.

Claims

1. The utility model provides a torch data processing distributor based on Modbus agreement which characterized by: the device is provided with a torch PLC (1), an RS485 data processing distributor (2), a first-stage gasification DCS (3), a second-stage gasification DCS (4), a third-stage gasification DCS (5), an optical fiber transceiver (11), an RS485 data processing distributor receiving end (21), an RS485 data processing distributor serial port 1 (22), an RS485 data processing distributor serial port 2 (23), an RS485 data processing distributor serial port 3 (24), the torch PLC (1) is connected with the optical fiber transceiver (11), the optical fiber transceiver (11) is connected with the RS485 data processing distributor receiving end (21) of the RS485 data processing distributor (2), the RS485 data processing distributor serial port 1 (22) of the RS485 data processing distributor is connected with the first-stage gasification DCS (3) through the optical fiber transceiver (11), the RS485 data processing distributor 2 (23) of the RS485 data processing distributor is connected with the second-stage gasification DCS (4) through the optical fiber transceiver (11), and the RS485 data processing distributor 3 (24) of the RS485 data processing distributor is connected with the third-stage gasification DCS (5) through the optical fiber transceiver (11).

2. The Modbus protocol-based torch data processing distributor of claim 1, wherein: the RS485 data processing distributor (2) is provided with an RS485 data processing distributor receiving end (21), an RS485 data processing distributor serial port 1 (22), an RS485 data processing distributor serial port 2 (23) and an RS485 data processing distributor serial port 3 (24).