A4H254-8F8T交换机模块,A4H254-8F8T使用数据
90-30系列配置16通道模拟电流输入模块手持式编程器。除本节中的信息外，请参阅GFK-0402
系列90-30/20/Micro可编程控制器的手持编程器用户手册有关智能输入/输出模块配置的更多信息。尽管您可以使用Logicmaster更改活动扫描通道的数量90-30/20/Micro配置程序功能，手持编程器不支持编辑活动扫描通道的数量。
A4H254-8F8T交换机模块如果16通道模拟输入模块由初始化作为一个手持式编程器，主动扫描通道的数量为16个。如果模块先前已配置Logicmaster 90-30/20/Micro软件和活动扫描通道的数量已从16个更改，将显示该数量在手持式编程器显示屏的底线上，跟随AI。您可以编辑数据用手持式编程器只用于活动信道，但不能改变信道数主动扫描通道。
模块存在如果模块实际存在于系统中，则可以通过以下方式将其添加到系统配置中：将模块读入其中。例如，假设16通道模拟电流输入模块安装在311型PLC系统的插槽3中。可以将其添加到配置中按照以下顺序。使用上下光标键或#键显示所选插槽。手持式编程器无法更改此字段。然而，它可以是使用Logicmaster 90-30/20/20/Micro软件配置器功能进行更改。手持编程器将始终反映sta tus字段的当前活动长度。按下ENT键将允许PLC选择状态数据的起始地址。你可以按所需地址的键序列选择特定的起始地址，然后按ENT键。例如，要将起始地址指定为I17，请按键序列1，7，ENT。将显示以下屏幕：
using the Series 90-30
Hand-Held Programmer. In addition to the information in this section, refer to GFK-0402, the
Hand-Held Programmer for Series 90-30/20/Micro Programmable Controllers User’s Manual
for more information on configuration of Intelligent I/O modules.
Although you can change the number of actively scanned channels with the Logicmaster
90-30/20/Micro configurator function, the Hand-Held Programmer does not support editing the
number of actively scanned channels. If the 16-Channel Analog Input module is initialized by
a Hand-Held Programmer, the number of actively scanned channels is 16.
If a module had been previously configured with Logicmaster 90-30/20/Micro software and the
number of actively scanned channels has been changed from 16, that number will be displayed
on the bottom line of the Hand-Held Programmer display following the AI. You can edit data
with the Hand-Held Programmer only for the active channels, but can not change the number of
actively scanned channels.
Module Present
If a module is physically present in a system, it can be added to the system’s configuration by
reading the module into it. For example, assume that a 16-Channel Analog Current Input
module is installed in slot 3 of a Model 311 PLC system. It can be added to the configuration
with the following sequence. Use the Up and Down cursor keys or the # key to display the
selected slot.This field cannot be changed with the Hand-Held programmer. However, it can be
changed using the Logicmaster 90-30/20/20/Micro software configurator function.
