The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, machinery, electronics, automobile manufacturing, tobacco, plastics machinery, electric power, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution and so on.

MERAK 681H10078 681K10078 681K10079 Card

Cnet is a unidirectional, high speed serial data network that operates at a 10-megahertz or two-megahertz communication rate. It supports a central network with up to 250 system node connections. Multiple satellite Cnets can link to the central network. Each satellite network supports up to 250 system node connections. Interfacing a maximum number of satellite networks gives a system capacity of over 62,000 nodes. On the central network, a node can be a satellite network, a human system interface, a Harmony control unit (HCU), or a computer connected through a Cnet communication interface. On a satellite network, a node can be a human system interface, an HCU cabinet, or a computer. A human system interface is a workstation that runs Conductor software. A Harmony control unit is comprised of a controller and its I/O devices. A computer can run Composer™ tools, Performer applications, and third-party semAPI applications. Cnet is used by system nodes to: • Communicate field input values and states for process monitoring and control. • Send or receive control instructions from plant personnel through human system interfaces to adjust process field outputs. • Provide feedback to plant personnel of actual output changes through human system interfaces. • Communicate controller function block configuration information and parameters. These parameters determine the operation of functions such as process control, data acquisition, alarming, trending, and logging. • Report status. • Download firmware. Data is transferred in messages that contain system data, control, and configuration information and also in exception reports.

Computer

 A computer can access Cnet for data acquisition, system configuration, and process control. It connects to Cnet through the Cnet-to-computer interface. This capability enables plant personnel, for example, to develop and maintain control configurations, manage the system database, and create HSI displays remotely using Composer tools. There are additional Composer and Performer series tools and applications that can access plant information through the computer interface. Human System Interface A human system interface such as a workstation running Conductor software provides the ability to monitor and control plant operations from a single point. It connects to Cnet through the Cnet-to-computer interface. The number of workstations in a Symphony system varies and depends on the overall control plan and size of a plant. The workstation connection to Cnet gives plant personnel access to dynamic plant-wide process information, and enables monitoring, tuning, and control of an entire plant process from workstation color graphics displays and the keyboard. Each HSI workstation has a dedicated computer interface. NOTE: A workstation running Conductor NT software can interface to Cnet through an INICI12 interface. A workstation running Conductor VMS does not use the INICI12 interface but instead has its own dedicated version of the Cnet-to-computer interface (IIMCP02 and IIMLM01). Intended User Personnel installing, operating, or maintaining the INICI12 interface should read this instruction before performing any installation, operation, or maintenance procedures. Installation requires an engineer or technician with experience handling electronic circuitry and familiarity with communication networks.