Welcome to the Industrial Automation website!

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

ABB IMASI23 module

F: | Au:FAN | DA:2025-05-15 | 1417 Br: | 🔊 点击朗读正文 ❚❚ ▶ | Share:
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.
  • Metso A413005 Ver.04 Valmet CPU Module
  • Valmet M851207 AIU16 Card
  • Valmet BIU8 Binary Input Unit
  • VALMET 547070-2B CPU Printed Circuit Board Module
  • Valmet Automation A413325 Power Module
  • VALMET AUTOMATION A413135 AOU4 Module
  • VALMET ACU A413165 Model 9 Analog Controller
  • VALMET AUTOMATION A413511-02 Slot Rack with I/O Backplane
  • Valmet A413148 BIE 4 Rev 08 Board
  • Valmet ATB16-4 Controller Board
  • Neles Automation BOR82 A413292 Processor Module
  • Valmet A413015 NCU Module – Network Control Unit
  • Valmet AIU 16 Analog Input Unit – M8512071
  • Metso Valmet A413091 GDU Board
  • Valmet M851565 Damatic Main Keyboard
  • Metso A413082 CPU Module
  • Valmet A403037 GDC – Graphics Display Controller
  • Valmet A413076 FBC Board
  • Valmet A413015 NCU Module – Network Control Unit
  • Valmet A413082 CPU Module
  • VALMET AUTOMATION A413620 Fieldbus Repeater
  • Valmet Metso IOP341R Positioner Module
  • Metso A413082 Ver.04 CPU Module
  • Valmet Metso MCA FT250/10 10 Inch Sensor
  • Valmet N0542 ABMB Printed Circuit Board
  • Valmet A413000 Ver.07 CPU Module
  • Valmet A413061 Ver.05 DMU Module
  • Valmet M851241 M1 BCU Binary Input Module
  • Valmet Automation NCU A413015 Circuit Board
  • Valmet A413046 Ver.06 CPU Module
  • Valmet A651B001 Panel Mount Keyboard
  • Valmet IQ Scanner A418080R Basis Weight Detector Head
  • Metso Valmet A413370 ESU Ethernet SCSI Unit
  • Valmet A413340 FPU Power Supply Unit
  • Valmet SKF GE 400/600 Spherical Plain Bearing
  • Valmet SCU PCB Card 542844-7B – System Control Unit
  • Valmet A413075 FBU Fieldbus Controller Module
  • Valmet A413171 PIC Card Binary Output
  • Valmet A413002 Ver.05 CPU
  • Valmet ABMB PCB Card – Industrial Control Board
  • Valmet PMB 2R 542821-4A PCB Card
  • Metso Valmet A413001 CPU Module
  • Metso Valmet A413050 RSU 6 Serial Controller Unit
  • Valmet ABMB MT241 Input Mother Board
  • Valmet DAMATIC M851565 Keyboard
  • Valmet A413075 Ver05 FBC Board
  • VALMET K14891 FLEXI-U Operating Terminal
  • VALMET AUTOMATION MKB2 DAMATIC Keyboard
  • Valmet Metso Consistency Transmitter Smart Pulp M1 RL Blade
  • VALMET AUTOMATION A413230 ECU Module
  • Beckhoff EP9224-0037 - 4-Channel Power Distribution Box EtherCAT
  • Beckhoff CX2900-0026 - Solid State Flash Memory Card 20GB CFast
  • Beckhoff BK7500 - SERCOS Interface Fieldbus Bus Coupler Terminal
  • Beckhoff Ep2328-0002 - 4-Channel Input 4-Channel Output EtherCAT Box IP67
  • Beckhoff CX1020-0111 - Controller Kit Combo Interface Modules
  • B&R X20AI2237 - X20 System Analog Input Interface Module
  • Beckhoff CP2221-0010 - Multi-Touch Built-In Panel PC Touchscreen
  • Beckhoff CX1500-M310 - Fieldbus Master Interface Module 24V
  • Beckhoff CX2100-0904 - Power Charging Module Smart UPS Extension
  • Beckhoff CP3918-0000 - Multi-Touch Control Panel 18.5-Inch Monitor
  • Beckhoff CP2915-0000 - 15-Inch Multi-Touch Built-In Control Panel
  • Beckhoff CP7037-1027 - HMI Industrial Control Panel Built-In PC
  • Beckhoff EL3152 - 2-Channel Analog Input Terminal 4-20mA EtherCAT
  • Beckhoff CP6607-0000-0020 - 5.7-Inch Built-In Panel PC HMI Touch
  • Beckhoff EJ1809-0000 - 16-Channel Digital Input Pluggable Signal Level Terminal
  • Beckhoff AM8563-0N10-0000 - Synchronous Servo Motor
  • Beckhoff AX2006-S60600-520 - Compact Servo Drive Inverter
  • Beckhoff AM8053-0K20-0000 - Servo Motor with Planetary Gearbox AG3210
  • Beckhoff AM8042-0FH1-0000 - Synchronous Servo Motor
  • Rexroth R911338600 - IndraControl V HMI Terminal Beckhoff PCI Card FC9002
  • Beckhoff AX5125-0000 - 3 Phase Industrial Servo Drive 1000Hz
  • Beckhoff EP2328-0002 - 4-Channel Digital Input 4-Channel Output EtherCAT Box
  • B&R 7CP476-02 - System 2005 RTD CPU Module 3IF681.86 Interface
  • Beckhoff AX8620-0000-0000 - Power Supply Module Axis Drive System
  • Beckhoff CX1010-0111 - PLC Module CPU Controller 24V
  • Beckhoff AM8043-0H10-0000 - Synchronous Servo Motor
  • Beckhoff C6240-1009 - Control Cabinet Industrial PC Mainframe
  • Beckhoff BX8000-0000 - Bus Terminal Controller HW 4.4 Standalone
  • Beckhoff CP7721-1089-0020 - 12.1-Inch Touch Screen HMI Panel PC
  • Beckhoff CP7132-0001 - Industrial Built-In Panel PC Screen
  • Beckhoff CP2912-0010 - Multi-Touch Built-In Control Panel Display
  • Beckhoff CP2915-0000 - 15-Inch Multi-Touch Built-In Control Panel
  • Beckhoff AM8532-1EN0-0000 - Synchronous Servo Motor
  • Beckhoff AX5203-0000 - 2-Channel Digital Compact Servo Drive
  • Beckhoff CX2020-0141 - Embedded PC Core CPU Module
  • Beckhoff CP6832-0002-0010 - Built-In Industrial Control Panel Display
  • Beckhoff CX5020-0112 - Embedded PC CPU Control Module
  • Beckhoff CX5140-0175 - 4GB Embedded PC CPU Unit 24V
  • Beckhoff EL3681-0030 - Digital Multimeter Calibration Terminal EtherCAT
  • Beckhoff CP7201-1000-0000 - Industrial PC Touch Screen HMI Monitor
  • Beckhoff CP7232-1001-0000 - Industrial Panel PC Touch Screen
  • Beckhoff C6930-1032-0040 - Control Cabinet Industrial PC System
  • Beckhoff AX5125-0000 - 3 Phase Industrial Servo Drive 1000Hz
  • Beckhoff CP3916-1424-0000 - Multi-Touch Built-In Control Panel
  • B&R 1900071142 - Lemoine Fieldbus Communication Interface Module
  • Beckhoff EL2872 - 16-Channel Ribbon Cable Digital Output Terminal
  • Beckhoff CX2030-0120 - Embedded PC CPU Base Module Controller
  • Beckhoff CP3919-0000 - 19-Inch Multi-Touch Control Panel Touchscreen
  • Beckhoff AX5101-0000-0202 - Servo Driver Compact Intelligent Drive 180V
  • Beckhoff CX5130-0135 - Embedded PC Controller Module
  • Beckhoff CP3719-1061-0010 - Multi-Touch Panel PC Outer Housing Enclosure
  • Beckhoff CP3919-1033-0000 - 19-Inch Touch Industrial Panel Keyboard
  • Beckhoff CX5020-0111 - Embedded PC PLC CPU Module
  • Beckhoff FC5102-0000 - 2-Channel CANopen PCI Control Board Card
  • Beckhoff CX9001-1101 - Embedded PC CPU Network I/O System Module
  • Beckhoff CX1100-0920 - Smart Position Sensor Interface Module
  • B&R 4P3040.01-490 - Operator Panel PLC Interface Communication Module
  • Beckhoff CP2612-0000 - Dual-Touch Built-In Panel PC HMI
  • Beckhoff CP7002-1043-0010 - Touchscreen Display HMI Panel Terminal
  • Beckhoff CX9020-0115 - Embedded PC Controller Module
  • Beckhoff CX5140-0155 - 4GB Embedded PC CPU Module Die Industry
  • B&R 7DI435.7 - System 2005 Universal Digital Input Output Module
  • Bihl+Wiedemann BWU1568 - AS-i Master to Profibus Gateway Module
  • Beckhoff C6920-0070 - Control Cabinet Industrial PC 8GB Win 10
  • B&R X20AI2322 - 2-Channel Temperature Analog Input Module
  • Beckhoff CP2912-0000 - 12-Inch Touchscreen Display Monitor Screen
  • Beckhoff CP6022-1001-0010 - 15-Inch Built-In Control Panel
  • Beckhoff AM8031-0D10-0000 - Synchronous Servo Motor
  • Beckhoff CX5010-0111 - Embedded PC Controller CPU Module
  • Beckhoff CP7232-1000-0000 - Industrial Panel PC Touch Display Screen
  • Beckhoff CP7802-0011-0000 - 15-Inch Industrial Touchscreen Control Panel
  • Beckhoff C6320 - Control Cabinet Industrial PC
  • Beckhoff CX1030-0012 - Basic CPU Module Windows CE 6.0
  • Beckhoff CP2919-0000 - Installation Multi-Touch Control Panel
  • Beckhoff CX1020-0000 - Controller Set Stack System Pack
  • B&R 3DO480.6 - System 2005 Digital Output Module
  • Beckhoff EL3101 - 1-Channel Analog Input Terminal Differential +/-10V
  • Beckhoff AX8108-0200-0000 - Axis Feed Module Servo Drive