




140XSM00200
IMASI23模块使用一个NTAI06终端单元进行终端。NTAI06需要一根NKAS01或NKAS11电缆,以便:
连接到IMASI23模块。电缆为Y形配置,一端有两个连接器。注意J2的标签
以确保输入信号的正确连接。图形
图3-5显示了与NTAI06终端单元的电缆连接。
图3-5.电缆连接
T01066B
P1
P3
J3
P2
J2
P1
J1
P2
NKAS01/11
(注1)
终止
电缆
N TAI06
频道11-16
频道1-10
IM AS I23字段
装电线
注:
1.N KA S 01 H A S P VC在S U L-N(S PE C F L E G TH U P至20 0英尺)中的位置。
在一个小的空间里,有一个1小时的VC(在20英尺的空间里)。
WBPEEUI240774A0
WBPEEUI240774A0 4-1
配置和校准第4节
介绍
本节说明IMASI23模块(ASI)现场输入的配置和可选现场校准。
控制器中的功能代码配置IMASI23模块
并识别活动模拟输入。这些功能代码
指定ASI模块的I/O扩展器总线地址,以及
输入模块上的活动通道数。
在模块组装期间,在以下位置执行模块校准:
工厂。模块中的电路和软件进行自动调整以补偿应用变化,
组件漂移和冷结误差。ASI模块
提供现场校准,但不应提供
必修的。
配置输入
通过在中设置规格来配置IMASI23模块
控制器中的FCs 215和216。需要一个FC 215用于:
每个模拟输入模块需要一个FC 216
模拟输入模块上使用的通道。参见附录A
有关NTAI06终端单元的更多信息。
配置功能代码
注意:请参阅Composer功能代码应用手册
FCs 215、216和217的说明。
控制器使用配置初始化ASI模块
FCs 215和216中规定的数据。每当出现新的配置数据时,控制器向ASI模块发送命令
在控制器配置中输入。此命令导致:
ASI模块读取配置数据并初始化其
输入处理、转换和补偿计算。
FCs 215和216在控制器中定义,以配置
ASI模块,并识别有源模拟输入。这些
功能代码指定的I/O扩展器总线地址
4-2 WBPEEUI240774A0
配置功能代码
IMASI23模块以及模拟上的信道号
连接到模拟输入信号的输入模块。类型
输入以及工程单位中的零点和量程,
还必须指定,以确保适当的缩放和校正
用于现场校准或冷结补偿。作用
代码规范还包含A/D分辨率、引线
电阻(如果需要这样的校正)和每个输入要抑制的噪声的主频。
对于冷端补偿,表示
还必须指定冷端输入。要使用模拟输入模块的板载冷接点参考,请将FC 215中的规范S3设置为FC 215的块地址。
任何通道都可用作远程冷接点参考。
在FC 216规范S4中,输入:
1xx
范围从01到99的xx指定输入信号
类型
选择输入通道作为远程冷接点时
进行输入读数的软件平滑。
这种平滑允许远程的温度响应
冷接点参考,与温度紧密匹配
远程终端块的响应。
140XSM00200

140XSM00200
he IMASI23 module uses one NTAI06 termination unit for termination. The NTAI06 requires an NKAS01 or NKAS11 cable to
connect to the IMASI23 module. The cables have a Y configuration with two connectors on one end. Note the labeling of J2
and J3 to insure proper connection of the input signals. Figure
3-5 shows cable connections to the NTAI06 termination unit.
Figure 3-5. Cable Connections
T01066B
P 1
P 3
J3
P 2
J2
P 1
J1
P 2
NKAS01/11
(NOTE 1)
TERMINATION UN IT
CABLE
N TAI06
CHANNELS 11-16
CHANNELS 1-10
IM AS I23 FIELD
WIRING
NOTE:
1 . N KA S 01 H A S P VC IN S U L ATIO N (S PE C IFY L E N G TH U P TO 20 0 FT).
N K A S1 1 H A S N O N -P VC IN S U L ATIO N (S PE C IFY LE N G TH U P TO 20 0 FT).
WBPEEUI240774A0
WBPEEUI240774A0 4 - 1
Configuration and Calibration Section 4
Introduction
This section explains the configuration and optional field calibration for the field inputs of the IMASI23 module (ASI).
Function codes in the controller configure the IMASI23 module
and identify the active analog inputs. These function codes
specify the I/O expander bus address of the ASI module and
the number of active channels on the input module.
Module calibration is performed during module assembly at
the factory. Circuitry and software in the module make automatic adjustments to compensate for application variations,
component drift, and cold junction errors. The ASI module
does provide for field calibration although it should not be
required.
Configuring Inputs
Configure the IMASI23 module by setting the specifications in
FCs 215 and 216 in the controller. One FC 215 is required for
each analog input module and one FC 216 is required for each
channel used on the analog input module. Refer to Appendix A
for more information on the NTAI06 termination unit.
Configuring Function Codes
NOTE: Refer to the Composer Function Code Application Manual for
descriptions of FCs 215, 216, and 217.
The controller initializes the ASI module with the configuration
data specified in FCs 215 and 216. The controller sends a command to the ASI module whenever new configuration data is
entered in the controller configuration. This command causes
the ASI module to read the configuration data and initialize its
input processing, conversion, and compensation calculations.
FCs 215 and 216 are defined in the controller to configure the
ASI module and identify the active analog inputs. These
function codes specify the I/O expander bus address of the
4 - 2 WBPEEUI240774A0
Configuring Function Codes
IMASI23 module as well as the channel number on the analog
input module connected to an analog input signal. The type of
the input, as well as the zero and span in engineering units,
must also be specified to insure proper scaling and corrections
for field calibration or cold junction compensation. Function
code specifications also contain the A/D resolution, lead wire
resistance (if such a correction is desired), and primary frequency of the noise to be rejected by each input.
For cold junction compensation, the block which represents
the cold junction input must also be specified. To use the analog input module’s onboard cold junction reference, set specification S3 in FC 215 to the block address of FC 215.
Any channel can be used as a remote cold junction reference.
In FC 216, specification S4, enter:
1xx
The xx, which ranges from 01 to 99, specifies the input signal
type.
When an input channel is selected as a remote cold junction
reference, software smoothing of the input reading takes place.
This smoothing allows the temperature response of the remote
cold junction reference to closely match the temperature
response of the remote terminal blocks.
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