It has A/D,D/A conversion function,and completes the control and adjustment of analog quantity through I/O module.The number of digits and precision can be selected according to user requirements.
It has a temperature measurement interface,which can be directly connected to various resistances or galvanic couples.
Communication and networking functions
Most modern PLCs use communication and network technology,with RS232 or RS485 interfaces,which can perform remote I/O control,multiple PLCs can be networked and communicated with each other,and signals from external devices and one or more programmable controllers Between processing units,realize program and data exchange,such as program transfer,data file transfer,monitoring and diagnosis.
The communication interface or communication processor completes the transfer of programs and data according to a standard hardware interface or a proprietary communication protocol.Such as the Profibus field bus port of Siemens S7-200,its communication rate can reach 12Mbps.
When the system is formed,a distributed control network of”centralized management and decentralized control”can be formed by one computer and multiple PLCs,so as to complete large-scale complex control.Commonly referred to as SCADA system,the on-site and remote ends can also use PLC as the on-site machine.
Human-machine interface function
Provides the operator with the necessary information to monitor the work of the machine/process.Allows operators and PC systems to interact with their applications for decision making and adjustments.
The means to realize the function of human-machine interface:from the basic operator screen text display,to the stand-alone CRT display and keyboard operation,and the decentralized and centralized operation and monitoring system using communication processors,special processors,personal computers,and industrial computers.
Name: Shanxi Runsheng Import & Export Co., Ltd.
Address: Room 3301, 33rd Floor, Building A, Wanda Center, No. 175 Jiefang Road, Xinghualing District, Taiyuan City
Contact: 15340683922 Wu Jiedong (same number on WeChat)
Contact QQ: 3542659095
Contact email: 3542659095@qq.com
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Main business: Bentley Bentley, Invensys TRICONEX, Woodward Woodward
, Foxboro, FOXBORO, Westinghouse, Ryan, Schneider
, Modicon, ABB, AB, Motorola, GE Fanuc, Yaskawa YASKAWA, Bosch Rexroth REXROIH, ACSO, YOKOGAWA Yokogawa, Dark Horse HIMA, Emerson EMERSON
, Yokogawa YOKOGAWA, Honeywell Honeywell, Moore Moore, EPRO, ICS TRIPLEX, Bachmann and other major brands === Mainly do PLC, DCS, robot, servo and four major systems of discontinued spare parts, modules, cards, and drives.