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ABB Bailey INFI 90 system IMASI23
Source: | Author:kongjiangauto | Publish time: 2019-04-26 | 177 Views | Share:
ABB Bailey INFI 90 system IMASI23

The IMASI23 Analog Input Module is a Harmony rack I/O
module that is part of the Symphony Enterprise Management
and Control System. It has 16 analog input channels that
interface isolated thermocouple, millivolt, RTD, and high level
analog signals to a controller with an analog-to-digital conversion
resolution of 24 bits. Each channel has its own analog-
to-digital converter and can be independently configured to
handle the desired input type. These analog inputs are used by
the controller to monitor and control a process. The controller
performs the control functions; I/O modules provide the input
and output functions.
NOTE: The IMASI23 module is fully compatible with existing INFI 90 OPEN
Strategic Enterprise Management Systems.
Figure 1-1 shows the Harmony rack I/O architecture. A Harmony
area controller and the Harmony rack controllers can
use the rack I/O modules for I/O interface.

Personnel installing, operating, or maintaining the IMASI23
module should read this instruction before performing any
installation, operation, or maintenance procedures. Installation
requires an engineer or technician with experience handling
electronic circuitry. Those working with the analog input
module should have experience working with and know the
precautions to take around AC/DC power. A knowledge of the
Symphony system and electronic principles is also required.

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.

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.

For more information, please contact us!

IMASI02
IMASI03
IMASI13
IMASI23
IMASM03
IMASO01
IMASO11
IMBLK01
IMCIS02
IMCIS12
IMCIS22
IMCOM03
IMCOM04
IMCPM02
IMDSI02
IMDSI12
IMDSI13
IMDSI22
IMDSM04
IMDrSM05
IMDSO01
IMDSO02
IMDSO04
IMDSO14
IMDSO15
IMFAI01
IMFBS01
IMFCS01
IMFEC11
IMFEC12
IMHSS02
IMMFC04
IMMFC05
IMMFP01
IMMFP02
IMMFP03
IMMFP03B
IMMFP11
IMMFP12
IMMPI01
IMPCC01
IMRIO02
IMSDO01
IMSET01
INBIM02
INBTM01
INICT01


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