Welcome to the Industrial Automation website!

Product
Article
NameDescriptionContent
HONG  KANG
E-mail  
Password  
  
Forgot password?
  Register
HOME ⊙ ABB ⊙ ABB IMASI23 module
当前位置：

ABB IMASI23 module

来源: | 作者:FAN | 发布时间 :2025-05-15 | 596 次浏览: | Share:

ABB IMASI23 module

product overview

The ABB IMASI23 module is an analog input module designed specifically for industrial automation systems, responsible for critical data acquisition tasks in industrial control systems. It can convert analog signals from various sensors on site, such as temperature, pressure, flow rate, liquid level, and other physical quantities, into digital signals and transmit them to the control system, providing accurate data basis for precise control and decision-making of the system. It is an indispensable basic component for achieving precise control of industrial automation.


Specification parameters

（1） Channel parameters

Number of channels: Equipped with 8 analog input channels, it can simultaneously access 8 different analog signals, suitable for small and medium-sized industrial automation data acquisition scenarios, meeting diverse monitoring needs.

Signal type: Supports multiple standard analog signal inputs, including 4-20mA current signals, ± 10V voltage signals, etc. 4-20mA current signal is commonly used for long-distance signal transmission in industrial sites, with strong anti-interference ability; The ± 10V voltage signal is suitable for situations where high signal accuracy is required and the transmission distance is close.

（2） Electrical parameters

Input accuracy: With high input accuracy, usually up to ± 0.1% FS (full range), it can accurately collect analog signals, effectively reduce measurement errors, ensure the accuracy of collected data, and provide reliable data support for industrial control.

Input impedance: For current input, the input impedance is generally less than 250 Ω; For voltage input, the input impedance is greater than 10M Ω. A reasonable input impedance design can ensure that the signal is not distorted during transmission and ensure the stability of signal acquisition.

Isolation characteristics: Electrical isolation design is adopted between channels and between channels and systems, with an isolation voltage of up to 500V AC, effectively preventing signal interference and electrical faults from affecting each other, improving the reliability of module operation and system safety.

（3） Physical parameters

Size specifications: Adopting a compact design, the external dimensions are approximately [length x width x height, such as 80mm x 50mm x 40mm (depending on the actual product)], making it easy to install in control cabinets, distribution boxes and other equipment with limited space, saving installation space and improving system integration.

Installation method: Supports standard DIN rail installation, the installation process is simple and fast. Simply insert the module into the guide rail and secure it, and the installation can be completed. It can also be fixed to the installation plane with screws, making it convenient for on-site installation and later maintenance.

Environmental adaptability: The working temperature range is generally -25 ℃ to+60 ℃, and the relative humidity range is 5% -95% (without condensation). It has good resistance to vibration, impact, and electromagnetic interference, and can operate stably in harsh industrial sites such as high temperature, humidity, high dust, and complex electromagnetic environments.


Introduction

This section explains the inputs, control logic, communication, and connections for the IMASI23 module.
The ASI module interfaces 16 analog inputs to a Harmony controller.
The Har mony controller communicates with its I/O modules over the I/O expander bus (Fig. 1-1). Each I/O module on the bus has a unique address set by its address dipswitch (S1)


Module Description

The ASI module consists of a single printed circuit board that occupies one slot in a module mounting unit (MMU).
Two cap tive latches on the module front panel secure it to the module mounting unit.
The ASI module has three card edge connectors for external signals and power: P1, P2 and P3. P1 connects to the supply voltages. P2 connects the module to the I/O expander bus, over which it communicates with the controller.
Connector P3 carries the inputs from the termination cable plugged into the termination unit (TU). The terminal blocks for field wiring are on the termination unit.
A single dipswitch on the module sets its address or selects onboard tests. Jumpers configure the type of analog input signals.


Functional Operation

The ASI module is an intelligent module with an onboard microcontroller and memory.
It interfaces to a controller over the I/O expander bus.
An onboard microcontroller allows the ASI module to perform the input channel processing.
This allows the controller to do other tasks. Input processing tasks include error compensation, adjustments, and conversion to engineering units.
Each channel provides underrange, overrange, and open input detection.
Onboard circuitry detects either open field wires or a disconnected termination unit cable. Open input detection is provided for millivolt, thermocouple, RTD, 1 to 5 VDC, and 4 to 20 milliampere input types and can detect any combination of  open input wires.
Figure 2-1 shows a block diagram of the IMASI23 module.


Isolated A/D Converter

Each input channel has an A/D converter (delta-sigma type).
Isolation is done by DC/DC converters (one per channel) and optocouplers on the digital serial line of the A/D converter.
Each channel accepts voltage and resistance inputs. Resis tance measurements are made by digitizing the voltage drop created across the input resistance source.
A precision constant current source supplies the current used to measure the input.


Cold Junction Reference

The ASI module measures the cold junction RTDs on the termination unit of the analog input module. 

This results in an accurate reading of the ambient temperature at the field wire termination area.

This value can be used by the ASI module to compensate for voltages generated from the bimetal
connections made by terminating the field wires (thermocouple wires) onto the terminal blocks of the termination unit.
The block address of the cold junction reference used by ther mocouple inputs on the ASI module is contained in FC 215, specification S3.

Each analog input module configured for a thermocouple input requires a cold junction reference. 

Each analog input module can only have one reference which can be used by up to 16 thermocouple inputs.

The exception to this is when one of the inputs is used as a remote cold junction reference.


Refer to Section 4 for more information

Digital Input Multiplexer (MUX)

Once isolated, digitized, and buffered, the input signal is sent to the microcontroller by a digital multiplexer. 

All the inputs, including the references and cold junction input, are multi plexed as shown in Figure 2-1.

Microcontroller and Memory
The onboard microcontroller coordinates ASI functions.
The main functions are:
• Channel and cold junction reference switching.
• Programming A/D converters.
• Reading the A/D converters and applying all necessary cor
rection factors.
• Interfacing to switch and LEDs (used for diagnostic mode).
• Background integrity checking.
• Reading and writing expander bus data through dual port


RAM (DPRAM)

Switch Settings
The ASI module has one eight-position dipswitch to select the I/O module address on the I/O expander bus.
This switch also selects built-in diagnostics for stand alone testing LED Indicators
The ASI module has two LED indicators, one red and one green, which show the operating status. The LEDs will:
• Flash red on power-up.
• Remain off (both LEDs) after passing onboard diagnostics until the ASI module is configured by the controller.
• Show solid green after the controlling controller downloads configuration data.
• Show solid green during normal running.
• Blink green when the controller that configured the ASI module enters configure mode from execute mode.
• Blink green if I/O expander bus communication is lost (if the controller is removed).
• Show solid red if a fatal failure of the ASI module occurs.
For example, if power up diagnostics fail.
• Show solid red for a power fail interrupt (PFI).


I/O Expander Bus

The I/O expander bus is a high-speed, synchronous, parallel bus. It provides a path between controllers and I/O modules.
The controller sends control functions to the ASI module, and the ASI module provides input data to the controller.
The P2 card edge of the ASI module and controller connect to the bus.
The I/O expander bus is parallel signal lines located on the module mounting unit backplane.
A 12-position dipshunt placed in a socket on the MMU backplane connects the bus between the controller and I/O modules.
Cable assemblies can extend the bus to eight module mounting units.

A controller and its I/O modules form a subsystem within a Harmony control unit (HCU). 

The I/O expander bus between control and I/O subsystems must be separated.

Leaving a dipshunt socket empty or not connecting the module mounting units with cables separates them


I/O Expander Bus Interface

The ASI module communicates with the controller through a shared memory interface connected to the I/O expander bus.
The ASI module constantly updates the shared memory device (dual port RAM) with the current values of the inputs.
The controller can read these values at any time, even if the ASI module is simultaneously writing to the dual port RAM.
The ASI module uses a custom gate array for the I/O expander bus interface. An integrated circuit holds all the control logic and communication protocol. This integrated circuit provides these functions:
• Address comparison and detection.
• Message decoding and translation.
• Data line filtering of bus signals.
• Onboard bus drivers.
• Expander bus watchdog.
A dual port RAM stores data that can be accessed at the same time by the controller and the I/O module's microcontroller.
Data Values
For all inputs, channel values are adjusted based on the factory calibration. Thermocouple inputs receive cold junction reference compensation. Lead wire resistance adjustments are performed when necessary (for cold junction reference only).
The ASI module provides values to the controller over the I/O expander bus. These values are in engineering units.
The ASI module sends a status indication to the controller for each input channel. This status indicates any hardware errors and channel configuration errors detected by the ASI module.


Termination Units

The IMASI23 module uses one NTAI06 termination unit to connect to field signals. An NKAS01 or NKAS11 cable connects the termination unit to the ASI module through its P3 connector.
The termination unit contains RTDs used for cold junction compensation of thermocouple inputs. They also contain the circuitry needed to convert 4 to 20 milliampere field signals into the 1 to 5 VDC needed to input to the analog input module.
The system power supply is protected from short circuits by fuses on the NTAI06 termination unit.
Function Codes
NOTE: Refer to Appendix C for function code specification changes required when replacing an IMASI03 module with an IMASI23 module.
FCs 215 and 216 in the controller configure the ASI module and identify the active analog inputs. One FC 215 is required for each ASI module.
One FC 216 is required for each input channel used on the ASI module.
These function codes specify the I/O expander bus address of the ASI module and the channel number on the module connected to a specific analog input signal.
The type of the input and the zero and span in engineering units must also be specified to ensure proper scaling and corrections for calibration, cold junction compensation, and nonlinearity correction.
Add FC 215 and 216 to the controller to configure the ASI module. Set FC 217 in the controller to calibrate the ASI module or to set the user gain and offset values.
Refer to the Composer Function Code Application Manual for more information.

IMASI23 ABB Analog Input Module,TC,MV,RTD.



  • ABB LS4000 diode laser analyzer
  • ABB REM615 HBMBCCAHNB1NN1XD Motor Protection Control
  • ABB 3BHE017628R0002 PPD115A02 SG579989013 Controller Module
  • ABB G2000A5.7ST human-machine interface
  • ABB DKTFM418B 3BHB015651P0001 Controller
  • ABB 3BHE039724R0C3D PPD513 A0C-100440 AC800PEC Controller
  • ABB PPD513AOC -100440 3BHE039724R0C3D 800 D513 Integrated Gate Commutator Transistor (IGCT)
  • ABB XUD194 XUD194A 3BHC018137R0001 Controller Unit Module
  • ABB UDC920BE01 3BHE034863R0001 High Voltage Inverter
  • ABB PPD517A3011 3BHE041576R3011 Excitation Controller
  • ABB MT-91-ARC FP A Control Panel
  • ABB UAC383AE01 HIEE3008900001 interface module
  • ABB XVC722AE101 3BHB002751R0101 High Performance Industrial Control Module
  • ABB TB820V2 3BSE013208R1 Modulebus Cluster Modem
  • ABB 3BHE003604R0102 UFC765AE102 circuit board
  • ABB SPSED01 High-Performance SOE DI Module
  • ABB GFD233A103 3BHE02294R0103 multifunctional control machine
  • ABB DO810 3BSE008510R1 Digital Output Module
  • ABB PM866A 3BSE076359R1 Process Controller
  • GE P111-6053 Advanced Microcontroller
  • GE SPU232.1-CAN PART NO: 029.354 630. Industrial grade module
  • ALSTOM VCM 232.2 029.359 088 VME-MANAGER-MASTER 0085.022.99
  • ALSTOM Centrol Unit COP 232.2 029.232 446
  • ABB PPD539A102 3BHE039770R0102 Control System Module
  • ABB UFC921A101 3BHE024855R0101 Digital Control Module
  • ABB UFC911B106 3BHE037864R0106 Voltage Measurement Board
  • ABB 5SHY4045L0006 3BHB030310R0001 IGCT module
  • ABB HIEE300024R4 UAA326A04 control module
  • ABB PPC905AE101 3BHE014070R010 Controller Module
  • ABB CDP-312R CONTROL PANEL
  • ABB TPPB-02 Control Processor Module
  • ABB UFC762AE101 3BHE006412R0101 motor control interface
  • ABB 1TGE120020R0614 industrial control module
  • ABB UFC760BE145 3BHE004573R0145 High-Voltage Interface Board
  • ABB XVC768116 3BHB007211R116 Programmable Controller
  • ABB XVC767AE105 3BHB007209R0105 Current Monitoring Board
  • ABB PCS6000 VLM70 3BHE034262R0001 Medium-Voltage Converter Module
  • ABB FPX86-9364-A controller motherboard
  • ABB FPX86-9345-B 3BHL000986P0006 Controller Module
  • ABB S-053M 3BHB012897R0003 Phase controller module
  • ABB 3BHE05077R0102 UNS0881b-PV2 control board
  • ABB VIPA972-0DP01 bus connector
  • ABB HS810 3BDH000305R0101 Controller Module
  • ABB PF900-NR 3BDH000357 power module
  • ABB 3BHB005245R0101 power board
  • ABB SUE3000 1VCR007346 G0032 Synchronous Motor Exciter
  • ABB SUE3000 1VCR007346 G0028 High speed Transmission Equipment
  • ABB UFC921A 3BHE024856P106 Communication Module
  • ABB GMKP2800-32IBY Communication Module
  • ABB PS203PRESSPMPPS Intelligent Control Module
  • ABB UNS4681V511 3BHE004074R0511 Expansion Unit Module
  • ABB PFTL101B 10KN 3BSE004197R1 high-performance weighing sensor
  • ABB CI532V02 3BSE003B27R1 Communication Module
  • ABB COM0034 control module
  • ABB 216VC626/P1000 HESG324442R112 processor unit relay card
  • ABB 216MB66 HESG324510M1 PLC Memory Expansion Module
  • ABB SPAJ140C overcurrent and ground fault relay
  • ABB DI840 3BSE020836R1 Digital Input Module
  • ABB AI845 3BSE023675R1 Analog Input Module
  • ABB B5LA HENF327886R0001 DC power module
  • ABB P7LA HNEF105323R0002 High Performance Control Module
  • ABB PPC322AEV01 HIEE300697R1 excitation control board
  • ABB REF620C_F NCFNAAAAABC2DNN1XF Feeder Protection and Control
  • ABB P72140-4-0788740 CTI21-P Input/Output Module
  • ABB DYTP123A 61430001-TW Ethernet Connection Module
  • ABB DYSF118B 61430001-XG Communication Interface Module
  • ABB DYPS154C 61430001-YP Serial Communication Module
  • ABB DTCC901B 61430001-FU Ethernet Communication Module
  • ABB SB510 3BSE000861R1 Backup Power Supply 110/230V AC
  • ABB CI535V26 3BSE022161R1 Communication Interface Module
  • ABB RAO02 redundant analog output module
  • ABB RAI02J redundant analog input module
  • ABB 1MRK002133-ABr02 analog-to-digital module
  • ABB UNITRAL1010 3BHE035301R0004 voltage regulator
  • ABB 3BHB019265R0410 Analog Input/Output (I/O) Module
  • ABB UNC4672AV1 HIEE205012R1 multi-functional input/output analog module
  • ABB REC650 1MRK008514-CB multifunctional circuit breaker
  • ABB RER 103 bus connection module
  • ABB REF545KB133AAAA High Performance Protection Relay
  • ABB REC670 1MRK002814-AC High-Performance Relay Module
  • ABB DASD001 3ASC25H241 Industrial Digital Input Module
  • ABB RED670 touchpad film
  • ABB NTAC-02 fiber optic cable
  • ABB XVC768AE102 3BHB007211R0102 Analog Input Module
  • ABB AD02 multi-channel integrated I/O module
  • ABB TU842 3BSE020850R1 module terminal unit
  • ABB APBU-44C 64669982 High Performance Controller Module
  • ABB REM611 panel
  • ABB RED615 panel
  • ABB L003748-AR 3BSX108237R300 Voltage Regulating Control Module
  • ABB COM0034 2RCA023019A0004C control module
  • ABB REU615E-D HBUAEAADNCA1BNN1XD Voltage Protection and Control Relay
  • ABB S-113H 3BHB01808R0003 Hydraulic Control Module
  • ABB REU615 panel
  • ABB TB840A 3BSE037760R1 modular cluster modem
  • ABB XVC770BE102 3BHE02103R0102 Controller Module
  • ABB LTC391AE01 HIEE401782R0001 Interface Module
  • ABB XVC770AE 3BHE006414R0001 fieldbus control system multifunctional module
  • ABB XVC768101 3BHB007211R101 Controller Module
  • ABB PM858-C 3BSE093350R1 Process Control System Module
  • ABB UAC389AE01 HIEE30088R0001 module controller
  • ABB AI02J high-performance I/O module
  • ABB IC698CPE030/IC698CPE020 series battery cover
  • ABB KSD211B 3BHE022455R1101 Input Coupling Unit ICU
  • ABB DSCA190V 57310001-PK Communication Processor
  • ABB GFD563A102 3BHE046836R0102 Analog I/O module
  • ABB XVC768115 3BHB007211R115 Industrial Control Module
  • ABB AI815 3BSE052604R1 I-O Module
  • ABB 5SGY3545L0010 3BHB006485R0001 Controller Module
  • ABB DAPI100 3AST000929R109 Ethernet Communication Interface Module
  • ABB SYN5201A-Z,V277 3BHB006714R0277 Auto single channel Syn
  • ABB KUC755AE117 3BHB005243R0117 System Controller
  • ABB CMA130 3DDE300410 Display Front Panel
  • ABB 07DC92D GJR525220R0101 Digital I/O Module
  • ABB PCD237A101 3BHE028915R0101 excitation control module
  • ABB CI627A 3BSE017457R1 Communication Interface
  • ABB 5SHY4045L0004 3BHB021400R0002 3BHE039203R0101 GVC736CE101 thyristor IGCT
  • ABB SYN5202A Controller Module
  • ABB LWN2660-6E 3BHL000986P7002 Power Conversion Module
  • ABB PFCA401SF 3BSE024387R4 Control Unit
  • ABB HIEE401807R0001 Advanced Power Electronics Module
  • ABB VBS01-EPD High Performance Digital Signal Processing Module
  • ABB LWN2660-6EG 3BHL000986P7002 Industrial Control Module
  • ABB SYN5201A-Z 3BHB006714R0217 Hydraulic Servo Module
  • ABB SYN5200a-Z，V217 SYNCHROTACT5 3BHB006713R0217 Dual channel synchronization device
  • ABB SAM3.0 Surge Arrester Monitoring System
  • ABB UNITROL 1005-0011 ECO 3BHE043576R0011 Automatic Voltage Regulator
  • ABB 3BHE032025R0101 PCD235B101 Exciter Control Module