Impulse MAQ20 User Manual
MAQ®20
Industrial Data Acquisition & Control System
Factory and Process Automation
Machine Automation
Military and Aerospace
Power and Energy
Environmental Monitoring
Oil and Gas
ETHERNET
USB
RS-232
RS-485
Flexible, Powerful, High Performance...
MAQ®20 Industrial Data Acquisition & Control System
The MAQ®20 Industrial Data Acquisition and
Control System encompasses more than 25
years of design excellence and quality in the
process control industry. The initial offering in
this high performance and highly flexible system
is a family of DIN rail mounted, programmable,
multi-channel, industrially rugged signal
conditioning input and output modules and
communication modules. Each I/O module has
a 1500Vrms isolation barrier between field-
side and system-side wiring, and some models
offer per-channel isolation. All field wiring ter-
minals are heavily protected against overload,
accidental connection of incorrect signals, and
ESD. Modules mount on the industry standard
35x7.5mm gull-wing DIN rail, and a backbone
mounts within the rail providing power and
communication interconnections between the
communication modules and each I/O module.
One communication module can interface to
up to 24 I/O modules to construct a system
with a maximum of 384 channels that fits
within a standard 19” instrumentation rack!
Processors within each module make this
distributed system extremely powerful.
single-ended input for precise measure-
ment of voltage and current signals; they
also offer 8-channel measurement of five
thermocouple types including accurate cold
junction compensation and linearization.
All channels are individually configurable
for range, alarm limits, and averaging.
- RTD Input Modules interface to 2-wire,
3-wire, and 4-wire sensors including five
RTD types and potentiometers. Modules
offer six channels, each configurable for
range, alarm limits, and averaging.
- Strain Gage Input Modules connect to
full bridge sensors, have narrow or wide
bandwidth filtering and offer four channels,
each configurable for range, alarm limits,
and averaging.
- Frequency Input Module accepts zero-
crossing and TTL signals with frequencies
of 500Hz to 100kHz and provides a DC
stimulus for contact sensors. This module
has four channels, each configurable for
range and alarm limits.
• Analog Output Modules: Process Current
and Voltage Output models drive valves,
perform other crucial process operations,
and provide up to eight channels of output
which can be independently configured
• Discrete Input/Output Modules: Provide
multiple channels of input and output per
module and offer advanced special
functions as well as alarm capability
The System Backbone resides within the
DIN rail used for module mounting and pro-
vides power to and interface between the
communication module and the I/O modules.
Key MAQ®20 Features
• Wide Operating Temperature,
–40°C to +75°C
• Stability 50ppm/°C of Reading Typical
• 1500Vrms Channel-to-Bus Isolation
• 240Vrms Continuous Input Protection
• ANSI/IEEE C37.90.1 Transient Protection
• Graphical Control Software
The Modules:
• Communication Modules: Offered in
Ethernet, RS-232, RS-485, and USB with
host software interfaces to the system using
Modbus TCP or Modbus RTU protocol
• Analog Input Modules: Interface to a wide
range of standard industrial sensors and
equipment and offer up to 16 channels of
input, each of which can be independently
configured
- Process Voltage, Process Current &
Thermocouple Input Modules offer
8-channel differential input or 16-channel
Common MAQ®20 Features
I/O Field Connection 20 position terminal block
High density screw clamp, 16-28 AWG
Failsafe Features Watchdog Timer and Brownout Detection:
Resettouserdenedconguration
Dimensions (h)(w)(d)
I/O Modules
Communication Module
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
Emissions, EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT
Certications Heavy Industrial CE, ATEX Pending
Burn-in Qualication 48 hours at 75ºC, powered and loaded
4.51” x 0.60” x 3.26” (114.6mm x 15.3mm x 82.8mm)
4.51” x 1.11” x 3.26” (114.6mm x 28.2mm x 82.8mm)
–40°C to +75°C
–40°C to +85°C
0 to 95% Noncondensing
ISM Group 1
Class A
ISM Group 1
Performance A ±0.5% Span Error
Performance B
UL Class I, Division 2, Groups A, B, C, D Pending
Communication Modules are offered in two models covering
standard industrial buses: Ethernet, RS-232, RS-485, and USB. Host
software interfaces to the system using the Modbus TCP or RTU
protocol. When using the Ethernet interface, up to four simultaneous
socket connections are supported and each socket can process up to
four simultaneous Modbus TCP transactions. Serial communications
over RS-232 or RS-485 can be run at baud rates as fast as 921.6kbps.
Another useful feature of the system is the capability to store acquired
data locally for later analysis. Each communication module has an easily
accessible and removable 4GB micro-SD memory card that can be
used to log data from all input modules.
To power the system, a 7-34VDC power source is connected to the
communication module. Regulated and protected supplies within the
module then provide power both to the internal circuits and to all mod-
ules in the system. When many high power I/O modules are used in a
system, load-sharing power boost modules can be installed in standard
I/O module slots to provide the necessary additional power.
Specications: Communication Modules
Typical at TA = +25°C and +24VDC system power
Analog Input Modules interface to a wide range of standard
industrial sensors and equipment, including volt, millivolt, milliamp,
thermocouple, RTD, potentiometer, strain gage and frequency. Four to
16 channels of input on the modules results in physically small control
systems and low cost per channel. Signal ranges are user selectable
and offered in both differential and single-ended configurations. Chan-
nels can be independently configured and alarms can be set to match
the most demanding applications.
Specications: Process Voltage, Process Current
& Thermocouple Input Modules
Typical at TA = +25°C and +24VDC system power
Model Number
MAQ20-MVDN
MAQ20-VDN
MAQ20-VSN
MAQ20-IDN
MAQ20-ISN
±2.0V, ±1.0V, ±250mV, ±100mV, ±50mV
Description
8-ch, mV, Differential Input
8-ch, V, Differential Input
16-ch, V, Single-Ended Input
±60V, ±40V, ±20V, ±10V, ±5V
8-ch, mA, Differential Input
16-ch, mA, Single-Ended Input
0-20mA or 4-20mA
Model Number
MAQ20-COM4
MAQ20-COM2
Communications
Ethernet
USB
RS-485
RS-232
Isolation 50V to bus
Power Supply
Input Power
Power to Bus
USB 2.0, Type B, Proprietary Modbus over USB
4-wire, up to 921.6kbps, RJ-12, Modbus RTU
Ethernet, USB, RS-485
Ethernet, USB, RS-232
10/100 Base-T, RJ-45, Modbus TCP
up to 921.6kbps, RJ-12, Modbus RTU
7-34VDC at 2A max
5VDC at 3A max
MAQ20-JTC
–100°C to +760°C, 3 selectable ranges
MAQ20-KTC
–100°C to +1350°C, 3 selectable ranges
MAQ20-TTC
–100°C to +400°C, 3 selectable ranges
MAQ20-RSTC
Per Channel Setup
CMR
NMR
Accuracy
mV, V, mA Input
TC Input
Bandwidth
Scan Rate
Alarms
Open Input Response
TC Input
Cold Junction Compensation
Accuracy, +25°C
Power Supply Current
(1) Includes linearity/conformity, hysteresis and repeatability. Does not include CJC accuracy.
(1)
Individuallycongurableforrange,alarmlimits,
8-ch, TC, Type J
8-ch, TC, Type K
8-ch, TC, Type T
8-ch, TC, Type R and Type S
0°C to +1750°C
averaging
100dB at 50Hz or 60Hz
30dB at 50Hz or 60Hz
±0.035% Span
±0.06% Span
3Hz
200 Ch/s
High / High-High / Low / Low-Low
Upscale, Flag set
±0.25°C
30mA
Communication Module
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