Technical Data
Front panel：W x H x D 302 x 228 x 6 mm
Mounting depth：58 mm (158 mm including clearance)
Front panel seal：IP 66
Rear panel seal：IP 20
Touch screen：Polyester on glass, 1 million finger touch operations. Overlay：Autotex F157 or F207*.
Weight ：2.1 kg
Serial port：RS422/RS485 25-pin D-sub contact, chassis-mounted female with standard locking screws 4-40 UNC Serial port RS232C 9-pin D-sub contact, male with standard locking screws 4-40 UNC
Flash memory for application：12 MB (incl. fonts)
Caution:
• The operator panel must be brought to ambient temperature before it is started up. If condensation forms, ensure that the operator panel is dry before connecting it to the power outlet.
• Ensure that the operator panel and the controller system have the same electrical grounding (reference voltage level), otherwise errors in communication may occur.
• Ensure that the voltage and polarity of the power source is correct.
• Separate high voltage cables from signal and supply cables.
• Shielded communication cables are recommended.
The design, debugging, reliability, and load rate indicators of DCS should focus on reliability and load rate (including redundancy) indicators when configuring the system and controller. The communication load rate must be controlled within a reasonable range, and the load rate of the controller should be as balanced as possible to avoid the occurrence of “high load” problems. The distribution of control logic in the unified control logic distribution system should not be overly concentrated on a certain controller, and the main controller should adopt redundant configuration. The design of the power supply must be reasonable and reliable. Pay attention to the load rate and redundant configuration of the power supply in the power supply design to ensure that there are two independent power sources.
DCS interface reliability focuses on the reliability of DCS system interfaces, paying attention to the interface methods and redundancy of important interfaces. The grounding of the anti-interference DCS system shall be carried out according to the manufacturer’s requirements to avoid grounding issues causing large-scale system failures. Attention should be paid to considering anti-interference measures of the system, and I/O channels should emphasize isolation measures. Pay attention to cable quality and shielding, and use computer specific communication shielded cables for important signals and controls. Emergency fault handling is based on the operating characteristics of the equipment and the requirements for handling emergency faults under various working conditions. An operator station and backup manual operation device are configured. The emergency shutdown button configuration should adopt a separate operating circuit from DCS.
The protection system should adopt a multiple signal acquisition method. Reasonably use the blocking conditions to enable the signal circuit to have logical judgment ability. During debugging, all logic, circuits, and operating conditions need to be tested according to the debugging outline and methods to ensure that the parameter settings are correct and reasonable.
Prepare for maintenance during DCS operation and start stop maintenance
(1) Maintenance personnel should be familiar with the DCS system structure, understand equipment hardware knowledge, and proficiently master the DCS configuration software.
(2) System backup: including operating system, control system software, and logical configuration to ensure data integrity and up-to-date. Priority should be given to using optical disks, mobile hard drives, USB drives, etc. to ensure dedicated use of dedicated disks.
(3) Hardware reserve: Make an appropriate backup of vulnerable and short life components and key components, ensuring that there is no less than one spare part for each type of card and module, and store it according to the manufacturer’s requirements. If conditions permit, the spare parts should be verified.
(4) Organize the scope and schedule of product after-sales service, and form a technical support communication list for DCS manufacturers and design and debugging units.
The daily maintenance of the system is the foundation for the stable operation of DCS, mainly including the following points:
(1) According to national standards, industry standards, and relevant documents, improve the DCS system management system.
(2) The electronic room is well sealed, ensuring that the temperature, humidity, and air cleanliness comply with the manufacturer’s regulations. The environmental temperature signal of the electronic room can be introduced into DCS monitoring.
(3) Check every day whether the fans in each cabinet of the system are working properly and whether the air ducts are blocked.
(4) Ensure the quality of the system’s power supply and provide reliable power to both power sources. When either power source is lost, an alarm will sound.
(5) It is prohibited to use wireless communication tools in the electronic room to avoid interference from electromagnetic fields on the system, and to avoid pulling or damaging equipment connection cables and communication cables.
(6) Properly manage the USB ports and optical drives of the host in a closed manner. Standardize the management of DCS system software and application software, and software modifications and upgrades must comply with approval and authorization regulations.
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