2020年7月9日——modbus组织董事会宣布,它正在删除modbus通信的查询和响应范例中所有不适当的术语。对于正在进行的项目,所有有能力做出积极改变的公司和个人都应该这样做。作为拥有世界上最大安装基础之一的工业网络标准的持有者,用更周到的参考文献完成当前术语的替换是很重要的。该组织的文献和其网站上的所有“主-从”实例都将被删除。当前的电子内容正在更新到此公告中。

PRESS RELEASE

Modbus Organization Replaces Master-Slave with Client-Server

July 9, 2020 — The Modbus Organization Board of Trustees announces it is expunging all occurrences of inappropriate language of the query and response paradigm of Modbus communications. With recent events, all companies and individuals with the ability to make positive changes should do so. As the holder of the standard for an industrial network with one of the largest installed bases in the world, it is important to complete the replacement of the current terminology with more thoughtful references. All instances of “master-slave” in the organization’s literature and on its website will be removed. Current electronic content is being updated as of this announcement.

Board Chair Todd Snide commented, “The time is overdue for these words to be removed. The terms are unnecessary and insensitive to the people who experience racism in this country and around the world. We urge our member companies and all those who use the Modbus protocol to take similar action to rid their documentation and communications of these terms.”

The organization is using “client-server” to describe Modbus communications, characterized by communication between client device (s), which initiates communication and makes requests of server device(s), which process requests and return an appropriate response (or error message).

About Modbus-Organization, Inc.

Headquartered in Massachusetts, the Modbus Organization is an association of users and suppliers of control and automation devices. The organization works to support the Modbus protocol, provide information and tools for individuals and companies using Modbus. It maintains the authoritative website for Modbus information. Additional information about the Modbus Organization can be found on the organization’s website, www.modbus.org.

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