Discovering Asia Pulp and Paper Industry Co., Ltd. in the pulp and ONP line process control system, using ABB s AC800M S800 I / O the 800xA. Whole plant used 19 pairs of AC800M PM864A controller (redundant), 8 Connect Server server, 3 Aspect Server server, two servers and one for the Domain as anti-virus software to upgrade the server (and also cater to the network data backup). 8 CS server according to the region where the controller is divided into four pairs, so they both redundancy. Used the server in the upper windows 2000 server operating system, use the 4.1 version of Industrial IT 800xA system; 13 sets 3 sets of operating stations and station engineers use windows XP operating system, use the 4.1 version of Control Builder M ; Professional as the next-bit controller programming software and VB6.0 SP6 as the DCS screen configuration software.
Figure 1: AC800M communication topology (schematic, not marked redundant line)
The new pulp line to be number one in the company factory, it only need to modify the CS01, CS02 The two server OPC server configuration file on it, the system does not need to do drastic changes.
Hardware selection
due on the 1st factory in the five pairs of controllers have been close to full capacity, so the company decided to buy this plasma line 1 on the controller: one to the original controller does not increase the load; Second, in Ongoing projects will not affect existing processes. According to the experience of other plants, the configuration of a system consistent with the existing simulation environment, using a server and an engineer station to achieve.
Figure 2 : with MCC communications OZD line
according to the original DCS system: the system controller chosen AC800M PM864A, communications card chosen CI854A and CI840, I / O card for S800 products: AI895, AO895, DI810, DO820 . Other ancillary equipment is the same as the original, to ensure adequate compatibility; continue to use the Siemens electrical products for the communications with Profibus-DP interface directly linked in CI854A, stay out of 2 ports (2 CI854A) for electrical The MCC newsletter. DCS hardware in general is complete, then under I / O list of the number calculated, and some system design margin. Table 1 is the final DCS card parts list, not including third-party equipment and auxiliary.
System communication constitute
the whole project is most important is communication problem, the construction equipment from site to AC800M communication are all new, not only to ensure the normal communication, but also to ensure reasonable design.
the project by the two AC800M constitute a redundancy, a total of four wires: Controller A-CN1, controller, A-CN2; Controller B-CN1, controller B-CN2 ; two CN1 port through the switch A link to the CS server, the first redundant network, the two B CN2 port switches linked to the CS through the second redundant server network. This AC800M to the CS server hardware communication is complete. In the corresponding CS server in the OPC service to add the controller s IP address, and then save the configuration, and set to automatically load the software communications are completed.
on the control of the redundant configuration in two steps: set the IP address in the controller and the redundant address access rules; in the CBM process which is set to redundant controller, and specify the IP CN2 address. Ipconfig program provided by ABB can easily set the controller IP address. The program which
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