+086-15305925923

K-WANG

Service expert in industrial control field！

English 简体中文

NameDescriptionContent

Adequate Inventory, Timely Service

pursuit of excellence

Ship control system

Equipment control system

Power monitoring system

Current position:

Home >> ABB >> ABB Data Sheet ControlIT Harmony Analog I/O

新闻动态

newS

Brand

ABB Data Sheet ControlIT Harmony Analog I/O

From:ABB | Author:Wang | Time :2025-01-03 | 259 visit: | Share:

The Harmony Input/Output (I/O) System utilizes a variety of input and output blocks to inter face process signals to the Symphony ™Enterprise Management and Control System. Analog

input (AIN) blocks interface field inputs such as pressure and flow transmitter signals, thermo couple (TC) inputs, and resistive temperature device (RTD) inputs. Analog output (AOT) blocks

provide output signals to adjust final control elements such as control valves, pumps, positioners,

actuators, etc. These analog blocks along with other types of blocks for digital and control I/O

interface and remote I/O communication combine to create a complete I/O system (Fig. 1). Refer

to the Harmony Input/Output System overview for a complete system description.

Operation

Each analog I/O block has an onboard microprocessor which controls and performs the following

functions for the block:

■ Hnet communication.

■ Analog input/output processing.

■ Redundancy link communication.

■ Block diagnostics.

■ Status reporting.

Along with these functions, the microprocessor is also responsible for executing the I/O block

portion of the control configuration. The complete control configuration made up of linked func tion codes resides and is retained in the Harmony controller at all times. The controller only off

loads a portion of the configuration to be executed by the individual I/O blocks.

Function codes are predefined, fixed function algorithms. When interfacing analog I/O blocks, the

controller utilizes the following function codes:

■ I/O device definition (FC 221).

■ Analog input/channel (FC 222).

■ Analog output/channel (FC 223).

Specifications are set on a per channel basis rather than on an I/O group basis. The function codes

provide addressing, and start-up, execute (i.e., run time), override, simulation, and failure mode

operation specifications. The I/O channel function codes are exception reporting function codes.

Analog Input

The Harmony I/O System supports four to 20 milliampere, high level –10 to +10 VDC, low level

-100 to +100 millivolt (DC), thermocouple (TC), and resistive temperature device (RTD) inputs

through AIN blocks:

■ AIN-120 - High level voltage, current in.

■ AIN-200 - Isolated TC, high level voltage, low level voltage in.

AIN-220 - Isolated TC, high level voltage, low level voltage, current in.

■ AIN-300 - Isolated RTD in.

Data Conversion

An AIN block reads currents or voltages at its input channels, scales and converts the inputs to

real values in engineering units, then reports the input values to the controller. The block provides

channel status information along with each reported input.

High and low level inputs are converted to the proper engineering units based on input type and

engineering unit high and low value specifications. Thermocouple and RTD inputs are converted

to the proper engineering units (degrees C or degrees F) using predefined conversion tables for

each type of thermocouple and RTD supported.

The AIN-120 block uses a single successive approximation analog-to-digital converter through

which all channels are multiplexed. This type of A/D conversion method is fast (ten microseconds

per conversion), which allows multiple channels to be sequentially multiplexed through one converter. Redundancy provides a backup analog-to-digital conversion.

The AIN-200, AIN-220, and AIN-300 blocks have dedicated Delta-Sigma analog-to-digital converters on each channel. These converters are slower (50 milliseconds per conversion); however,

no multiplexing is required since each channel performs independent conversions. The converters

also have built-in digital signal processing which provides low pass filtering. The AIN-200,

AIN-220, and AIN-300 blocks have optically isolated input channels.

Digital Signal Processing

The AIN-120 block uses a floating point digital signal processor (DSP) to achieve low pass filtering. The advantage to using a DSP device for this function is that significant noise rejection can be

achieved (better than 70 dB) while maintaining fast settling time to an input step response (75 milliseconds). As stated previously, the Delta-Sigma analog-to-digital converters used in the AIN-200,

AIN-220, and AIN-300 blocks have built-in digital signal processing which provides low pass

filtering.

Calibrations

No field calibrations are required. The electronics automatically perform the following adjustments to the raw analog inputs depending on input type:

■ Drift correction using onboard zero and span reference voltages.

■ Lead wire resistance adjustment for low level, thermocouple, and RTD inputs.

■ Cold junction temperature compensation for thermocouple inputs using either an internal or

external cold junction reference.

Current Limiting

The analog input channels provide onboard current limiting for short circuit protection. The current limiting prevents circuit damage that can result from excessive current levels at an input

channel caused by field input faults. Specifically, the four to 20 milliampere input channels are

protected against shorts across the transmitter, across positive and negative terminals, from the

positive terminal to ground, and from the negative terminal to ground. A channel will recover to

full function after correcting the fault condition.

The Harmony I/O System supports four to 20 milliampere outputs through an AOT-150 block.

This block receives output demand values in engineering units from the controller, scales the

demand values to percentages of output, and converts them to analog voltages or currents at the

output channels. User selectable default states of zero percent, 100 percent, or hold output are

provided.

Calibrations

The electronics automatically adjust analog outputs to compensate for supply voltage variations.

Field calibration of analog outputs is not required.

Readback

Each analog output channel is monitored on the block. This readback function serves two

purposes:

■ Provides high accuracy (0.1 percent) by using a software compensation algorithm in combination with the analog output readback value.

■ The integrity of the hardware and field wiring is constantly monitored by way of checking

the readback value.

The block also reports the readback values to the controller. It automatically scales the values to

their proper engineering units before reporting them. The readback values are converted to the

proper engineering units based on engineering unit high and low value specifications.

Analog Input Blocks

The AIN block interfaces various analog inputs: Current, voltage, thermocouple, and RTD. An

AIN block that supports thermocouple inputs includes cold junction compensation for the TC

inputs and can detect open thermocouples. The AIN block supports redundant I/O electronics.

An AIN block can be ordered with either a screw terminal (S type) or cable/clamp terminal (C

type) base.

AIN-120

Current, High Level Voltage In

The AIN-120 block supports the following inputs:

■ 4 to 20 milliampere.

■ –10 to +10 VDC differential.

■ –10 to +10 VDC single-ended.

The block provides 16 nonisolated input channels that are individually hardware configurable for

either voltage or current mode and software configurable for voltage range.

上一篇： ABB Abilit......

下一篇： ABB Bailey......

ABB 3BSE042238R0001 - Spare parts in stock
ABB 3ABJ440304P0064 - Spare parts in stock
ABB 68564182 - Spare parts in stock
ABB 1SFB527068D7005 - circuit breaker, protection
ABB E256-45 - Spare parts in stock
ABB 61320954 - Spare parts in stock
ABB 3BSE013210R0001 - Spare parts in stock
ABB 3BHE014135R0011 - Spare parts in stock
ABB P903 - Spare parts in stock
ABB 764M007-6101 - Spare parts in stock
ABB 3BSE042236R2 - communication module, Ethernet
ABB 1SBL347001R1300 - circuit breaker, protection
ABB 3BHB025951R0001 - power converter, industrial
ABB 3BHB023235R0001 - drive controller, automation
ABB 3BHL000320P0001 - circuit breaker, protection
ABB 3BHB017641R0001 - control board, industrial
ABB 3BHL000406P0004 - power module, distribution
ABB 3BHL000406P0002 - power module, distribution
ABB 68295459 - Spare parts in stock
ABB 58914444 - Spare parts in stock
ABB 3BHL000406P0007 - power module, distribution
ABB 64572881 - Spare parts in stock
ABB 3BHL000406P0100 - power module, distribution
ABB 3BHL000468R0007 - circuit breaker, protection
ABB 2TLA020051R5100 - Spare parts in stock
ABB 2TLA020046R0900 - Spare parts in stock
ABB 3AXD50000032878 - drive unit, motor control
ABB 2TLA020071R9300 - Spare parts in stock
ABB 2TLA020070R2000 - Spare parts in stock
ABB 2TLA020070R1700 - Spare parts in stock
ABB 2TLA010033R3000 - Spare parts in stock
ABB K676RTPA - Spare parts in stock
ABB 1132901 - Spare parts in stock
ABB RMIO-01C - I/O module, remote control
ABB 2TLA020054R0700 - Spare parts in stock
ABB 1SAP170700R0001 - communication module, Ethernet
ABB 1SAP130100R0200 - power module, rectifier
ABB 3AUA0000143002 - sensor interface, measurement
ABB 3BSC950262R1 - relay module, control
ABB 3BSC950192R1 - circuit breaker, protection
ABB 3BSC610068R1 - power supply, industrial
ABB 3BSE037760R1 - control module, automation
ABB 64613081 - Spare parts in stock
ABB 2TLA920110R0000 - Spare parts in stock
ABB 2TLA020056R2400 - Spare parts in stock
ABB 2TLA020054R0600 - Spare parts in stock
ABB 2TLA020054R0500 - Spare parts in stock
ABB PM581-ETH - controller, Ethernet
ABB 3BHE014557R6104 - voltage regulator, excitation controller
ABB 3bhe005985r0001 - amplifier plate
ABB 3bhe044477p3 - PPE091A101 module
ABB 3bhe032285r0102 - Spare parts in stock
ABB 3bhe021889r0101 - ADCVI board
ABB 3bhe004569r0003 - GBT module board
ABB 3bhe024855r0101 - UF C921 A101
ABB 3bhe022678r0103 - dual gate drive, frequency converter
ABB 3bhe023584r2647 - AC 800PEC controller
ABB 3bhe014185r0002 - current transducer control plate
ABB 3bhe003855r0001 - Spare parts in stock
ABB 3bhe003379r0003 - control board
ABB 3bhe044481r0101 - module
ABB 3bhe014185r0001 - voltage transducer control board
ABB 3bhe023126r0020 - AF D242 A20
ABB 3bhe023584r2365 - CCP converter control panel
ABB 3bhe024855r0102 - inverter board, UF C921
ABB 3bhe014658r0001 - Spare parts in stock
ABB 3bhe028767r0201 - Spare parts in stock
ABB 3bhe005555r0101 - Spare parts in stock
ABB 3bhe024747r0101 - high voltage board
ABB 3bhe018086p201 - Spare parts in stock
ABB 3bhe014658r0102 - Spare parts in stock
ABB 3bhe024577r0101 - control panel, PPC907BE
ABB 3bhe025883r0101 - Spare parts in stock
ABB 3bhe037124r1004 - Spare parts in stock
ABB 3bhe028959r0101 - PP C902 CE101
ABB 3bhe036346r0101 - Spare parts in stock
ABB 3bhe034576r0101 - Spare parts in stock
ABB 3bhe013854r0001 - high voltage frequency converter
ABB 3bhe027867r0101 - Spare parts in stock
ABB 2TLA020003R47 - circuit breaker, protection device
ABB 2TLA020003R0900 - circuit breaker, protection device
ABB 7TAA292150R0770 - transformer, power supply
ABB 10020921 - Spare parts in stock
ABB 3BHL000359P0001 - industrial component, automation
ABB BD5935.48/61 - Spare parts in stock
ABB ACS800-107-0011-3 - variable frequency drive, motor control
ABB ACS800-104-0009-3 - variable frequency drive, motor control
ABB VS125B - circuit breaker, protection device
ABB 3BSE004191R1 - controller module, automation
ABB 3ADT754034P0001 - terminal block, electrical connection
ABB 746376 - Spare parts in stock
ABB 1SVR730712R1400 - voltage relay, protection device
ABB 1SAZ811201R1001 - Spare parts in stock
ABB 1SAZ911201R1001 - Spare parts in stock
ABB 1SAX351001R1101 - Spare parts in stock
ABB 1SAZ421201R1002 - Spare parts in stock
ABB 1SAX611001R1101 - Spare parts in stock
ABB 1SBL297001R1311 - circuit breaker, protection device
ABB 1SBL387001R1311 - circuit breaker, protection device
ABB 1SBL407001R1311 - circuit breaker, protection device
ABB 1SFL467001R1311 - Spare parts in stock
ABB 1SFL527002R1311 - Spare parts in stock
ABB 1SFL587002R1311 - Spare parts in stock
ABB 3BHB014999R0001 - industrial component, automation
ABB ACS880-01-105A-3 - variable frequency drive, motor control
ABB 3BSE042245R1 - controller module, automation
ABB 1SFA611605R1100 - circuit breaker, protection device
ABB 2TLA020072R0600 - circuit breaker, protection device
ABB FS225R12KE3 - IGBT module, power electronics
ABB FS450R17KE3 - IGBT module, power electronics
ABB FS300R12KE3 - IGBT module, power electronics
ABB 1SFA664003R1060 - circuit breaker, protection device
ABB ACS880-07-0293A-3 - variable frequency drive, motor control
ABB MB805A - circuit breaker, protection device
ABB CTB810 - terminal block, electrical connection
ABB CP800A - control panel, automation
ABB UXAB269350R0909 - power supply unit, 110-250VAC/DC
ABB 3HAC024316-004 - robotics component, industrial automation
ABB 68614988 - Spare parts in stock
ABB M3BC - motor, industrial drive
ABB 5STP24H2800 - thyristor module, power electronics
ABB PSE-290-107 - high voltage fuse, 3.6kV
ABB PSE-290-105 - high voltage fuse, 3.6kV
ABB PSE-290-177 - high voltage fuse, 3.6kV
ABB 1SAM451000R1014 - high voltage fuse, HRC fuse
ABB AZ200700 - Spare parts in stock
ABB 1SCA022381R1560 - current transformer, measurement
ABB 1SBL137201R1300 - protection relay, circuit breaker