




140XCA10215
IMASI23模块将模拟信号转换为数字值,根据需要添加补偿和校正,以及
通过I/O向控制器提供数字值
扩展器总线。
•每个通道可针对以下输入类型单独编程:
B、 E、J、K、L、N(14 AWG)、N(28 AWG)、R、S、T、U
热电偶。
中国E型和中国S型热电偶。
-100至+100毫伏。
图1-1和谐机架I/O架构
和谐
面积
控制器
输入/输出
模块
输入/输出
模块
输入/输出
模块
名词
解开它
我在伊翁
电缆
田野
渴望
我在伊翁
单位
在离子中
单位
T02325A
CNET
I/O EX PA和E R BU S
现场总线
模拟控制
S站
进程I/O过程I/O
特征
WBPEEUI240774A0 1-3
三线RTD(10100美国、100欧洲、120和
中国53欧姆)。
-10至+10 VDC高电平电压。
4至20毫安电流。
•模数转换过程的分辨率为24
位。
•输入类型和通道分辨率可以为每个通道独立选择,允许在
单个IMASI23模块。
•提供通道隔离和开路输入检测
对于每个信道。
•输入电路偏移、增益和非线性误差为
在一次性工厂校准过程中记录。
这些测量在以下过程中提供误差补偿:
正常操作。模拟输入模块执行自动
在正常运行期间重新校准,以补偿
组件老化和温度漂移。不需要用户校准。
•工程单位转换为摄氏度或华氏度是根据热电偶的所有输入信号自动计算的
或RTD类型。这些转换可纠正非线性
在转换为工业用温度单位时
标准线性化表。
•模拟输入模块将块输出值缩放为:
低电平和高电平电压输入的工程单位。
输入类型以及零和量程值在中指定
FC 216。
•热电偶输入具有冷端补偿。
每个终端设备都有一个内置冷结基准。应用于热电偶的冷端基准
输入可以是该内置引用,也可以是远程引用
从该或其他I/O的其他输入读取的参考
单元
•IMASI23模块可以在无需
关闭系统电源。
1-4 WBPEEUI240774A0
教学内容
教学内容
本说明由以下部分组成:
介绍IMASI23模块概述,包括功能、说明和规格。
描述和
活动
解释模块操作和输入电路。
安装包含处理IMASI23模块时应注意的事项。它显示了安装和连接模块的步骤
在施加功率之前。本节还包括开关和
跳线设置。
配置和
标定
介绍配置模拟输入模块输入的步骤:
特定输入类型以及如何现场校准输入通道
对于特定的输入类型。
操作程序解释了IMASI23模块的操作员界面。
故障排除描述了IMASI23模块错误代码,并解释了如何:
测试模块。
维护为IMASI23提供了预防性维护计划
单元此计划可用于中的所有模块
模块安装单元。
修理和
替换
包含拆卸和更换的注意事项和步骤
IMASI23模块。
附录A提供了NTAI06的配置信息
终端单元。附录B提供了更换IMASI13的信息,附录C提供了以下信息:
更换IMASI03模块。
如何使用本说明
按顺序阅读本说明。重要的是成为
熟悉本说明书的全部内容
使用该模块。有关以下信息,请参阅特定章节:
需要。
1.在安装之前,请阅读操作程序部分
单元
2.执行安装中的步骤
140XCA10215

140XCA10215
The IMASI23 module converts analog signals to digital values, adds compensation and corrections as needed, and
provides digital values to the controller through the I/O
expander bus.
• Each channel is individually programmable for the following input types:
B, E, J, K, L, N (14 AWG), N (28 AWG), R, S, T, U
thermocouples.
Chinese type E and Chinese type S thermocouples.
-100 to +100 millivolt.
Figure 1-1. Harmony Rack I/O Architecture
HARMONY
AREA
CONTROLLER
I/O
MODULE
I/O
MODULE
I/O
MODULE
TERM INATIO N
UN IT
T ER M IN AT IO N
CABLE
FIELD
W IRING
T ER M IN AT IO N
UNIT
T ER M IN AT ION
UNIT
T02325A
CNET
I/O EX PA ND E R BU S
FIELD BUS
ANALOG CONTROL
S TATION S
PR OCESS I/O PROC ES S I/O
Features
WBPEEUI240774A0 1 - 3
Three-wire RTD (10, 100 U.S., 100 European, 120 and
Chinese 53 ohm).
-10 to +10 VDC high level voltage.
4 to 20 milliampere current.
• Resolution of the analog-to-digital conversion process is 24
bits.
• Input type and channel resolution can be selected independently for each channel, permitting any mix of inputs on a
single IMASI23 module.
• Channel isolation and open input detection are provided
for each channel.
• Input circuit offset, gain, and nonlinearity errors are
recorded during a one time factory calibration procedure.
These measurements provide error compensation during
normal operation. The analog input module does automatic
recalibration during normal operation to compensate for
component aging and temperature drift. No user calibration is ever required.
• Engineering units conversion to degrees C or F is automatically calculated on all input signals that are thermocouple
or RTD types. These conversions correct for nonlinearities
in the conversion to temperature units using industry
standard linearization tables.
• The analog input module scales the block output value to
engineering units for low and high level voltage inputs.
Input type, and zero and span values are specified in
FC 216.
• Thermocouple inputs have cold junction compensation.
Each termination device has a built-in cold junction reference. The cold junction reference applied to thermocouple
inputs can be this built-in reference or it can be a remote
reference read from another input from this or another I/O
module.
• The IMASI23 module can be removed or installed without
turning off power to the system.
1 - 4 WBPEEUI240774A0
Instruction Content
Instruction Content
This instruction consists of following sections:
Introduction Overview of the IMASI23 module including features, description, and specifications.
Description and
Operation
Explains the module operation and input circuits.
Installation Contains the cautions to observe when handling IMASI23 modules. It shows the steps to install and connect the module
before applying power. This section also covers switch and
jumper settings.
Configuration and
Calibration
Presents steps to configure the analog input module inputs for
specific input types and how to field calibrate an input channel
for a specific input type.
Operating Procedures Explains the operator interface to the IMASI23 module.
Troubleshooting Describes the IMASI23 module error codes and explains how to
test the module.
Maintenance Provides a preventive maintenance schedule for the IMASI23
module. This schedule can be used for all the modules in the
module mounting unit.
Repair and
Replacement
Contains the cautions and steps for removing and replacing
the IMASI23 module.
Appendices Appendix A provides configuration information for the NTAI06
termination unit. Appendix B provides information on replacing an IMASI13, and Appendix C provides information when
replacing an IMASI03 module.
How to Use this Instruction
Read this instruction in sequence. It is important to become
familiar with the entire contents of this instruction before
using the module. Refer to a specific section for information as
needed.
1. Read the operating procedures section before installing the
module.
2. Perform the steps in the installatio
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