意萨Polymath手册：全面覆盖HMI技术与省配线方案

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意萨（ISA）的"Polymath手册"是一份详尽的技术文档，专注于介绍该公司的HMI（Human Machine Interface）产品系列。这份PDF文件涵盖了多款型号的终端，包括IT104、IT105VideoTerminal、IT105KVideoTerminal以及IT107VideoTerminal和IT107WideVideoTerminal，提供了全面的技术规格、安装指南和维护服务页面。在手册的"Premise 1"部分，读者可以找到基础信息，可能包括产品的设计理念、目标用户群和应用场景。接着，"Essential information"通常会列出关键特性，如操作系统支持、通信接口、显示分辨率和输入输出能力等，这些都是理解HMI功能的基础。 "General information regarding electromagnetic compatibility"关注的是电磁兼容性，确保设备在各种环境下能够稳定运行，不受电磁干扰。这涉及到抗电磁干扰设计和测试标准。手册的"Power supply"章节详细阐述了终端的电源需求和供电选项，确保用户知道如何正确连接和配置电源供应。对于每款终端，都有单独的章节来介绍其技术特性，包括硬件配置、软件功能、性能指标和系统兼容性。 "Front"和"Rear"部分展示了终端的外观设计，包括前面板和背面布局，这对于安装和布线规划至关重要。"Dimensions and cutout"提供了尺寸信息，帮助用户了解所需的空间和可能的集成方式。每个终端都配有服务页，包含了故障排除步骤、维护建议和常见问题解答，方便用户解决日常操作中的问题。控制面板部分通常涉及操作界面的设计、控制功能以及可能的定制选项。这部分信息对于操作员的用户体验和设备的易用性至关重要。意萨Polymath手册是一个全面的工具包，为工程师、技术人员和设备使用者提供了关于这些HMI设备的深入理解和详细指导，有助于他们高效地进行设备选择、安装、配置和维护。通过这个手册，用户可以深入了解意萨的产品，确保他们在工业自动化和人机交互应用中得到最佳的性能和可靠性。

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Chapter 2

Essential information

ESAPOLYMATH -HardwareManual- rev. 2.2

display.

This prerogative leads to a difference in display ( while

maintaining the same contrast and temperature) when:

• The observer has a different height to whom has

adjusted the contrast.

• The observers are at different distances with respect to

the terminal.

• Two displays that are the same can have different

brightness and tones to each other.

Graphical

Terminals -

STN

• The temperature affects the contrast of the display. At

higher temperatures the display is lighter, while at lower

temperatures it is darker, therefore after switch on it takes

a few minutes before the display becomes normal. The

effect can be more or less noticeable depending on the

environmental temperature. In terminals with temperature

probe, adjustment of the contrast is automatically adapted,

therefore the effect can hardly be noticed.

• It is possible that images with strong colour contrast with

respect to the background create streaks of colour. The

effect can be corrected slightly by acting on the display

contrast.

Display type

Direction (Hours)

12 - α 6 - β 9 - γ 3 - δ

STN 30 Degrees 60 Degrees 60 Degrees 60 Degrees

TFT 80 Degrees 80 Degrees 70 Degrees 70 Degrees

Streaks

Chapter 3

General information regarding

electromagnetic compatibility

ESAPOLYMATH -HardwareManual- rev. 2.2

General information regarding

electromagnetic compatibility

Electronic appliances are more frequently used in the

command and control systems. The programmable controllers

(e.g. the PLC s), the man/machine interface systems (e.g.

terminals), control systems (e.g. diagnostic terminals),

interfacing elements (e.g. interfacing boards) and drives (e.g.

the inverters) all belong the this category. Classic

electro-mechanical appliances such as contactors, solenoid

valves and motors etc. are also mounted with these types of

electronic appliances.

Electric interference caused by the functioning of these

appliances can jeopardise the correct functioning and the life

span of the electronic appliances present in the control board

or in the plant. To allow the correct functioning of the electric

and electronic appliances the presence of interference must be

reduced.

Laying the

cables

Remember to separate the measurement, control and

communication cables from the power cables. Power cables

laid near to and parallel to the communication cables cause

coupling voltages that interfere with or destroy the electronic

components.

Cable

shielding

For connection of the communication signals, it is necessary to

use suitable shielded cables (total shielding is recommended).

The shielding must be connected to the earth potential.

Earthing of

shields and

electronic

circuits.

In many appliances the "0V" is connected to bulk. The bulk

must be connected to earth, but it is a good idea to separate

the bulk of the shields and electronic circuits from that of the

power. Remember that the earth can only perform its function

if the "Resistance of the earth circuit" is within the maximum

limits set by the provisions.

Switch-over of

the capacitive

loads

The current peaks that occur on insertion of the capacitive loads

can damage or destroy the control elements. Moreover, the high

frequency component of the current peak can lead to serious

interference of the electronic appliances, caused by inductive

coupling of the connection cables.

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