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Design
Specification
AIM® Functional Design Specification
This document is designed to describe the functionality and specifications of the Armstrong
Intelligent Monitoring (AIM) System. The purpose of this FDS is to highlight and describe in detail the
functionality and operation of the AIM System.
AIM® Functional Design Specification
Section 1 – AIM System
1.0 - Overview & Fundamentals
Section 6 - HART Field Communicator
6.0 - Overview & Fundamentals
6.1 - Specifications
6.2 - Dimensions
Section 2 - AIM ST5700
2.0 – AIM Field Device Fundamentals
2.1 – ST5700 Device Fundamentals
2.1.1 – Data Collected by ST5700
2.1.2 – Data Transmitted by ST5700
2.2 – AD5000 Device Fundamentals
2.2.1 – Data Collected by AD5000
2.2.2 – Data Transmitted by AD5000
2.3 – TD5100 Device Fundamentals
2.3.1 – Data Collected by TD5100
2.3.2 – Data Transmitted by TD5100
2.4 – AIM Device Mounting Hardware
2.5 – AIM Device Battery Specifications
2.6 – AIM Device Technical Specifications and
Approvals
Section 7 - AIM Monitor Software
7.0 - Overview & Fundamentals
7.1 - Functionality/Description
7.2 - AIM Software User Interface
7.3 - System Requirements
Section 8 – SteamStar®
8.0 - Overview & Fundamentals
8.1 – Software Homepage
8.2 – Steam Asset Database
8.3 – Global Setup
8.4 – Benchmarking Reports
8.5 – Trending Analysis
8.6 – Emissions Reports
8.7 – Work Order Maintenance Reports
Section 3 - WirelessHART Communication
3.0 - Overview & Fundamentals
3.1 - WirelessHART Securities
3.2 - WirelessHART Data Protection
3.3 - WirelessHART Network Protection
3.4 - WirelessHART Co-Existence
3.4.1 - Channel Hopping
3.4.2 - Time Division Multiplexing
3.4.3 - Power Modulation
3.4.4 - Direct Sequence Spread Spectrum
3.4.5 - Mesh Networking
3.4.6 - Blacklisting and Channel Assessment
Section 9 – System Architecture Samples
Section 4 - AIM Wireless Gateway
4.0 - Overview & Fundamentals
4.1 - Functions
4.2 - Functional Specifications
4.3 - Data Interface
Section 5 - Field Network
5.0 - Overview & Fundamentals
5.1 - Required information
5.2 - Best Practices
5.3 - Network Installation
2
AIM® Functional Design Specification
Armstrong Intelligent Monitoring (AIM®) System
This FDS is designed to describe the functionality of the Armstrong Intelligent Monitoring (AIM®)
System. The purpose of this FDS is to highlight and describe in detail the functionality and operation
of the AIM System.
Section 1: AIM® System
1.0 Overview & Fundamentals
The AIM® System is designed to monitor and evaluate the condition of steam and process
equipment. It is comprised of a wireless monitor, wireless gateway (receiver), and Monitoring and
Analytics Software (user interface system). The wireless monitor is installed in the field and gathers
performance information. The data is transmitted to the gateway wirelessly using the WirelessHART
communication protocol. The gateway contains a database that can be polled by the AIM® Monitoring
and Analytics Software. The Software collects this data from multiple gateways (if required) and offers
an intuitive interface that allows the user further data manipulation capabilities.
3
AIM® Functional Design Specification
Section 2: AIM® Field Monitoring Devices (Transmitters)
2.0 AIM Field Device Fundamentals
Armstrong Intelligent Monitoring Devices comprise three unique device types:
• Steam Trap Monitoring Device – Model ST5700
• Acoustic Monitoring Device – Model AD5000
• Temperature Monitoring Device – Model TD5100
2.1 ST5700 Device Fundamentals
Model ST5700 is a wireless monitoring technology that efficiently monitors and evaluates steam trap
operation. The AIM® ST5700 detects potential issues by utilizing piezoelectric sensor and thermistor
sensor technology. This technology allows the AIM® ST5700 to identify steam trap failures. This
information is then communicated wirelessly to the Gateway.
2.1.1 Data collected by the ST5700 Monitor
The ST5700 performs steam trap analysis on a set time basis (default 1 hour). The analysis consists
of the following steps:
• Temperature measurement and comparison
• Sample temperature (Secondary Variable or SV)
• Compare sampled temperature reading against the Temperature Setting (Tertiary Variable or TV)
• If SV ≤ TV, Then Primary Variable (PV) equals 2, Steam Trap is Cold
• If SV > TV, Then perform acoustic evaluation
• Acoustic Evaluation
• Sample Acoustic signature from Steam Trap using Piezoelectric sensor
• Evaluate Acoustic signature using Armstrong technology
• If acoustic signature = OK, Then Primary Variable (PV) is equal to 1, Steam Trap OK, device enters sleep mode until next scheduled measurement
• If acoustic signature = Blow Thru, Then device enters 30 minute test algorithm
• If 30 minute test algorithm determines trap is OK, Then Primary Variable (PV) is equal to 1 (OK)
• If 30 minute test algorithm determines trap is Blow Thru, Then Primary Variable (PV) is equal to 3 (Steam Trap is Blowing Thru live steam)
2.1.2Data Transmitted by the ST5700 Monitor
Information
Steam Trap—
Model ST5700
Device ID
HART Tag


Primary
Variable (PV)
Secondary Variable
(SV)
Trap Condition
• 1 – OK = no alarm; steam trap is
functioning properly.
• 2 – CD = alarm; steam trap
plugged/locked or steam supply
valve off.
• 3 – BT = alarm; steam trap failed
to open, experiencing steam loss.
Table 3: ST5700 Transmitted Data
4
Current temperature
reading
(ºF or ºC)
Tertiary
Variable (TV)
Temperature
Setting*
Quaternary
Variable (QV)
Estimated Battery
Life (Days)
AIM® Functional Design Specification
2.2AIM® AD5000 Device Fundamentals
Model AD5000 is a wireless monitoring technology that efficiently monitors and evaluates safety relief
valves’ and other mechanical valves’ operation. The AIM® AD5000 detects potential issues by utilizing
piezoelectric sensor and thermistor sensor technology. This technology allows the AIM® AD5000 to
identify valve lifts and leaks. This information is then communicated wirelessly to the Gateway.
2.2.1 Data collected by the AD5000 Monitor
The AD5000 performs analysis on a set time basis. The analysis consists of the following steps:
• Acoustic Evaluation and comparison
• Sample Acoustic signature from valve using Piezoelectric sensor (Primary Variable or PV)
• Acoustic signature is measured on a scale from 0 to 255.
• 0 = no acoustic signature measured
• 255 = max acoustic signature measured (circuit saturation)
• Temperature measurement
• Sample temperature (Secondary Variable or SV)
2.2.2 Data Transmitted by the AD5000 Monitor
Information
Acoustic—
Model AD5000
Device ID
HART Tag


Primary
Variable (PV)
Secondary Variable
(SV)
Counts (0-255)
Current temperature
reading
(ºF or ºC)
Tertiary
Variable (TV)
Alarm Setting
(default 0)
Quaternary
Variable (QV)
Estimated Battery
Life (Days)
Table 4: AD5000 Transmitted Data
2.3AIM® TD5100 Device Fundamentals
Model TD5100 is a wireless monitoring technology that efficiently monitors and evaluates surface
and area temperatures. The AIM® TD5100 detects potential issues by utilizing thermistor sensor
technology. This technology allows the AIM® TD5100 to identify surface or area temperatures for
further evaluation and analysis. This information is then communicated wirelessly to the Gateway.
2.3.1 Data collected by the TD5100 Monitor
The TD5100 performs analysis on a set time basis. The analysis consists of the following steps:
• Temperature measurement
• Sample surface or area temperature (Primary Variable or PV)
2.3.2.Data Transmitted by the TD5100 Monitor
Information
Temperature—
Model TD5100
Device ID
HART Tag


Primary
Variable (PV)
Secondary Variable
(SV)
Temperature (ºF or ºC)
Status Bit
• 1 – Temp. above
setting
• 2 – Temp. below
setting
Table 5: TD5100 Transmitted Data
5
Tertiary
Variable (TV)
Temperature
Setting
Quaternary
Variable (QV)
Estimated Battery
Life (Days)
AIM® Functional Design Specification
2.4AIM® Device Mounting Hardware
The AIM® Devices utilize a rigid saddle clamp style mounting bracket developed by Armstrong called
a Waveguide and Tempguide. The mounting hardware consists of an upper and lower saddle and
fasteners. See table 6 for details and size options.
Waveguide Dimensions 1/2” - 1-1/4” (15-32)
Waveguide
Pipe Size
1/2 (15)
3/4 (20)
1 (25)
1-1/4 (32)
A
1.5 (38.1)
1.5 (38.1)
2.12 (53.8)
2.12 (53.8)
B
1 (25.4)
1 (25.4)
1.2 (30.5)
1.2 (30.5)
C
0.62 (15.7)
0.62 (15.7)
0.78 (19.8)
0.78 (19.8)
D
0.75 (19.1)
0.75 (19.1)
1.06 (26.9)
1.06 (26.9)
E
0.34 (8.6)
0.34 (8.6)
0.34 (8.6)
0.34 (8.6)
F
0.5 (12.7)
0.5 (12.7)
0.5 (12.7)
0.5 (12.7)
G
0.75 (19.1)
0.75 (19.1)
0.75 (19.1)
0.75 (19.1)
Weight lbs (kg)
0.3 (0.14)
0.3 (0.14)
0.4 (0.2)
0.4 (0.2)
Clamp Saddles
316SS
316SS
316SS
316SS
Bolt*
Hex HD 5/16-18
x 2.5 (64) LG
Hex HD 5/16-18
x 2.5 (64) LG
Hex HD 5/16-18
x 2.5 (64) LG
Hex HD 5/16-18
x 2.5 (64) LG
5/16 (7.9)
Washer Flat*
5/16 (7.9)
5/16 (7.9)
5/16 (7.9)
Washer Lock*
5/16 (7.9)
5/16 (7.9)
5/16 (7.9)
5/16 (7.9)
Nut*
Hex HD 5/16-18
Hex HD 5/16-18
Hex HD 5/16-18
Hex HD 5/16-18
Waveguide Dimensions 1-1/2” - 3” (40-80)
Waveguide
Pipe Size
Table 6: Waveguide Table (For pipe
sizes above 3” consult factory for
specifications)
1-1/2 (40)
2 (50)
2-1/2 (65)
3 (80)
A
2.75 (69.9)
2.75 (69.9)
3.37 (85.6)
3.37 (85.6)
B
1.5 (38.1)
1.5 (38.1)
1.6 (40.6)
1.6 (40.6)
C
1.05 (26.7)
1.05 (26.7)
1 (25.4)
1 (25.4)
D
1.38 (34.9)
1.38 (34.9)
1.69 (42.8)
1.69 (42.8)
E
0.41 (10.4)
0.41 (10.4)
0.41 (10.4)
0.41 (10.4)
F
0.7 (17.8)
0.7 (17.8)
0.7 (17.8)
0.7 (17.8)
G
0.75 (19.1)
0.75 (19.1)
0.75 (19.1)
0.75 (19.1)
Weight lbs (kg)
0.3 (0.14)
0.3 (0.14)
0.4 (0.2)
0.4 (0.2)
Clamp Saddles
316SS
316SS
316SS
316SS
Bolt*
Hex HD 5/16-18
x 2.5 (64) LG
Hex HD 3/8-16
x 4.0 (76) LG
Hex HD 3/8-16
x 4.0 (76) LG
Hex HD 3/8-16
x 4.0 (76) LG
3/8 (7.9)
Washer Flat*
5/16 (7.9)
5/16 (7.9)
3/8 (7.9)
Washer Lock*
5/16 (7.9)
5/16 (7.9)
3/8 (7.9)
3/8 (7.9)
Nut*
Hex HD 5/16-18
Hex HD 3/8-16
Hex HD 3/8-16
Hex HD 3/8-16
* Gr. 5, Zinc Plate .0015 THK, Per ASTM A633
Installation Example
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AIM® Functional Design Specification
2.5AIM® Device Battery
The AIM® devices utilize a Model TLH-5920 Lithium Ion battery, see table 7 for technical specifications
and dimensions.
2.6AIM® Device Technical Specifications and Approvals
The AIM® devices are designed to operate in hazardous environments. See Table 9 below:
Output
Local Display
(if applicable)
Temperature
Operating Range
Max Pipe
Temperature
Materials of
Construction
Battery Type
Weight
WirelessHART 2.4 GHz
Liquid Crystal Display
Viewing Area: 1.34" x 0.55" (34 mm x 14 mm)
With display: -30ºC to 80ºC (-22ºF to 176ºF)
Without display: -40ºC to 90ºC (-40ºF to 194ºF)
315ºC (600ºF) - Heat sink required
Housing – Aluminum
Paint – Powder Coat
O-ring – Nitrile
Stem – 304 SS
Antenna – Nylon 6,6
Nampelate – 304 SS
Tadiran Lithium Ion
Model – TLH-5920
2.2 lbs (1 Kg)
Table 8: Technical Specifications
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AIM® Functional Design Specification
Factory Mutual (FM) Approval
United States
Canada
European
Certification
IECEx
Certification
Intrinsic Safe for Class I/II/III, Division 1, Groups A, B, C, D, E, F, and G
Zone Rating: Zone 0, AEx ia IIC
Temperature Code: T3
Ambient Temperature Range: Tamb -40ºC to 90ºC (-40ºF to 194ºF)
For use with TADIRAN model TLH-5920 lithium ion battery only
Standards used for Certification:
FM3600, FM3610, FM3810, ANSI/ISA 60079-0, ANSI/ISA 60079-11
Intrinsic Safe for Class I/II/III, Division 1, Groups A, B, C, D, E, F, and G
Zone Rating: Zone 0, Ex ia IIC
Temperature Code: T3
Ambient Temperature Range: Tamb -40ºC to 90ºC (-40ºF to 194ºF)
For use with TADIRAN model TLH-5920 lithium ion battery only
Standards used for Certification:
CSA 1010.1, CSAC22.2No.157, CSAC22.2No.25,CAN/CSAE60079-0, CAN/CSA60079-11
ATEX Intrinsic Safety
Ex ia IIC T3
Ambient Temperature Range: Tamb -40ºC to 90ºC (-40ºF to 194ºF)
For use with TADIRAN model TLH-5920 lithium ion battery only
Standards used for Certification:
EN60079-0,EN60079-11, EN 60079-26
Equipment Protection Level: Ga
Gas/Vapour: EX ia IIC T3
Ambient Temperature Range: Tamb -40ºC to 90ºC (-40ºF to 194ºF)
For use with TADIRAN model TLH-5920 lithium ion battery only
Standards used for Certification:
IEC 60079-0, IEC 60079-11, IEC 60079-26
Table 9: Hazardous Approvals
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AIM® Functional Design Specification
Section 3: WirelessHART Communication
3.0 Overview & Fundamentals
AIM® utilizes the 3.1. WirelessHART communication protocol. WirelessHART uses IEEE 802.15.4
compatible radios operating in the 2.4GHz Industrial, Scientific, and Medical radio band. The radios
employ direct-sequence spread spectrum technology and channel hopping for communication
security and reliability, as well as TDMA synchronized, latency-controlled communications between
devices on the network. This technology has been proven in field trials and real plant installations
across a broad range of process control industries.
Each device in the mesh network can serve as a router for messages from other devices. In
other words, a device doesn’t have to communicate directly to a gateway, but just forward its
message to the next closest device. This extends the range of the network and provides redundant
communication routes to increase reliability.
The AIM® wireless gateway determines the redundant routes based on latency, efficiency and
reliability. To ensure the redundant routes remain open and unobstructed, messages continuously
alternate between the redundant paths. Consequently, like the Internet, if a message is unable to
reach its destination by one path, it is automatically re-routed to follow a familiar, redundant path with
no loss of data.
The mesh design also makes adding or moving devices easy. As long as a device is within range of
others in the network, it can communicate.
WirelessHART
Obstruction
Table 10: Wireless Mesh
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AIM® Functional Design Specification
3.1 WirelessHART Securities
The WirelessHART technology is designed to enable secure industrial wireless sensor network
communications while ensuring ease-of-use is not compromised. Security is built in and cannot be
disabled. It is implemented with end-to-end sessions utilizing AES-128 bit encryption. These sessions
ensure that messages are enciphered such that only the final destination can decipher and utilize the
payload created by a source device.
3.2 WirelessHART Data Protection
Security features associated with privacy aim to prevent eavesdropping by unauthorized devices
inside or outside the network. A common network encryption key is shared among all devices on a
network to facilitate broadcast activity as needed. Encryption keys can be rotated as dictated by plant
security policy to provide an even higher level of protection.
A separate 128 bit join encryption key is used to keep data sent and received during the joining
process private. The join key also serves as authentication to the security manager that the device
belongs to this network. The join key is treated separately from the other keys to enhance security.
Join keys can either be unique to each device, or be common to a given WirelessHART network
based on the user security policies.
Data Protection security features associated with Integrity ensures that data sent over the wireless
sensor network has not been tampered with or falsified. WirelessHART computes an encrypted
message integrity check field that is added to each packet. The receiving device uses this message
integrity check field along with the protected data to confirm the contents of the packet have not been
altered. The message integrity check field also protects the network routing information as well. This
prevents attacks that attempt to change the packet’s network/transport layer information.
Data Integrity also involves verifying that the packet has come from the correct source. The network/
transport layer message integrity check field, the information used to generate the check field, and
the sender/receiver unique session key that codes/decodes the data are tools that can be used to
verify the source.
3.3 WirelessHART Network Protection
A wireless sensor network also needs tools to protect it against attacks. Network security depends
upon techniques to support Authentication, Authorization, and Attack Detection.
An AIM® gateway and the AIM® devices joining the network must be configured to control which
devices are allowed to access the network. The network will only be secure if all the devices in the
wireless network maintain security. An AIM® gateway therefore has a secure authentication process
which it uses to negotiate with all joining devices to ensure they are legitimate. As with all other
network communications, all join negotiation traffic is encrypted end-to-end.
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AIM® Functional Design Specification
3.4 WirelessHART Co-Existence with other wireless systems
Co-existence is defined as “The ability of one system to perform a task in a given shared environment
where other systems have an ability to perform their task and may or may not be using the same
set of rules.” Successful co-existence is measured by the reliability of each network to deliver
its messages to the desired destination. Therefore, each network must be able to accomplish its
objective while not disrupting the ability of another network to complete its objective.
Problems can occur when two or more packets of information are transmitted at the same time and
frequency such that they “collide” in the same physical space. If networks aren’t designed to minimize
or avoid these occurrences, unreliable communications will result.
There are several techniques that can be used to minimize network interference:
• Channel hopping – changing the frequency channel
• Time Division Multiplexing – varying the time of communications
• Power Modulation – low power transmission
• Direct Sequence Spread Spectrum
• Mesh networking supports large physical space with low power instruments
• Blacklisting and channel assessment
In the data link layer of the WirelessHART protocol, packet acknowledgment with automatic retry
assures data is not lost if interference does happen to occur.
3.4.1 Channel Hopping
As specified by IEEE802.15.4, the 2.4 GHZ ISM frequency band is divided into 16 non-overlapping
frequency channels. WirelessHART instruments use a pseudo-random channel hopping sequence to
reduce the chance of interference with other networks, such as IEEE802.11b/g (Wi-Fi) which operates
in the same ISM frequency band.
Pseudo-random channel hopping inherent to WirelessHART instruments ensures that they do not fix
on using a channel being used by an IEEE802.11b/g network for any lengthy period of time. Together
with the other techniques listed, the probability of interference is minimal either way.
3.4.2 Time Division Multiplexing
A WirelessHART network utilizes Time Division Multiple Access (TDMA) technology to ensure that
only one instrument is talking on a channel at any given time. This prevents message collisions within
the WirelessHART network. A network is provided with an overall schedule which is divided into 10
msec timeslots. At any time, only one pair of instruments are communicating on the same frequency
channel, however, it is possible that more than one pair of instruments can communicate at the same
time using different channels. In most cases, only one pair of instruments is communicating in a given
timeslot so the WirelessHART network will not monopolize the frequency spectrum that is shared with
other wireless networks.
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AIM® Functional Design Specification
3.4.3 Power Modulation
The IEEE802.15.4 radios were chosen because they are relatively low power instruments suited to
wireless process control applications, as well as being readily available at a reasonable cost. The
radios are used with 10dB amplifiers to allow communication of up to 200m to the next instrument,
which in turn can serve as a router to pass the message along. In cases where the full distance
is not required, WirelessHART instruments can transmit at a lower power to reduce the chance of
interfering with other networks in the ISM frequency band. The lower transmit power of WirelessHART
instruments also means that any chance of interfering with a IEEE802.11b/g Wi-Fi network is small.
3.4.4 Direct Sequence Spread Spectrum
Direct Sequence Spread Spectrum (DSSS) technology provides about 8dB of additional gain utilizing
unique coding algorithms. The transmission is spread over the entire frequency of the selected
802.15.4 channel. Devices with the correct decoding information can receive the data while others
see the transmissions as white noise and disregard it. This allows multiple overlapping radio signals
to be received and understood only by other devices in their own networks.
3.4.5 Mesh Networking
The use of mesh networking technology complements the use of the low power IEEE802.15.4 radios.
With mesh networking, instruments do not need to have a direct transmission path to the network
Gateway. It is only required that any instrument be able to communicate to any other instrument in
the mesh network. Each AIM® ST5700 device is capable of routing the message of other devices
along a route that will ensure the message is received at its ultimate Gateway destination. Mesh
networks also provide path redundancy and thus achieve better reliability than if each device were
required to have a direct line of sight path to the Gateway. The mesh network can adapt to changing
communication and other environmental conditions to find a reliable communication path to the
Gateway.
3.4.6 Blacklisting and Channel Assessment
In conjunction with channel hopping the WirelessHART network can be configured to avoid specific
channels that are highly utilized by other networks and therefore likely to provide interference.
However because most networks are not loaded continuously this is rarely required.
To further avoid any conflict with other neighboring networks an AIM® Device listens to the frequency
channel prior to transmitting data. If other transmissions are detected the AIM® Device will back off
and attempt the communication in another timeslot on a different frequency.
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AIM® Functional Design Specification
Section 4: AIM® Wireless Gateway
4.0 Overview & Fundamentals
The AIM® wireless gateway connects AIM® WirelessHART self-organizing networks with host systems
and data applications. Modbus communications over RS-485 or Ethernet provide universal integration
and system interoperability. The OPC functionality from the gateway offers a means to connect to
newer systems and applications while providing a richer set of data.
The AIM® wireless gateway provides industry leading security, scalability, and data reliability. Layered
security ensures that the network stays protected. Additional devices can be added at any time.
There is no need to configure communication paths because the gateway manages the network
automatically. This feature also ensures that the AIM® devices have the most reliable path to send
data.
4.1AIM® Wireless Gateway Functions
•
•
•
•
•
Builds and maintains the MESH network. It identifies the best paths and manages distribution of slot time access. Slot access depends upon the required process value refresh rate and other access (alarm reporting – configuration changes).
Provides the connection to the host network.
Receive transmitted information from AIM® devices (see tables 3, 4, 5)
Provides a human interface to configure network and device settings
Hosts data integration tables for control systems software
4.2AIM® Wireless Gateway Functional Specifications
•
•
•
•
•
•
•
•
•
Input Power - 10.5-30 VDC
Current Draw - Operating Current Draw is based on 3.6 Watts power consumption. Momentary startup Current Draw up to twice operating Current Draw.
Radio Frequency Power Output from Antenna
• Maximum of 10 mW (10 dBm) EIRP
• Maximum of 40 mW (16 dBm) EIRP for WL2 High Gain option
Environmental
• Operating Temperature Range: -40 to 158 °F (-40 to 70 °C)
• Operating Humidity Range: 10-90% relative humidity
EMC Performance - Complies with EN61326-1:2006.
Weight - 10 lb. (4,54 kg)
Material of Construction
• Housing - Low-copper aluminum, NEMA 4X
• Paint – Polyurethane
• Cover Gasket - Silicone Rubber
• Antenna - Remote Antenna: Fiber Glass
Certifications - Class I Division 2 (U.S.), Equivalent Worldwide
Isolated RS485
• 2-wire communication link for Modbus RTU multidrop connections
• Baud rate: 57600, 38400, 19200, or 9600
• Protocol: Modbus RTU
• Wiring: Single twisted shielded pair, 18 AWG. Wiring distance is approximately 4000 ft. (1,524 m)
13
AIM® Functional Design Specification
• Ethernet - 10/100base-TX Ethernet communication port
• Protocols: Modbus TCP, OPC, HART-IP, https (for Web Interface)
• Wiring: Cat5E shielded cable. Wiring distance 328 ft. (100 m).
• Modbus - Supports Modbus RTU and Modbus TCP with 32-bit floating point values, integers, and scaled integers. Modbus Registers are user-specified.
• OPC - OPC server supports OPC DA v2, v3
• Protocol - IEC 62591(WirelessHART), 2.4 - 2.5 GHz DSSS.
• Maximum Network Size
• 100 wireless devices @ 8 sec. or higher
• 50 wireless devices @ 4 sec.
• 25 wireless devices @ 2 sec.
• 12 wireless devices @ 1 sec.
• Supported Device Update Rates
• 1, 2, 4, 8, 16, 32 seconds or 1 - 60 minutes
• Network Size/Latency
• 100 Devices: less than 10 sec.
• 50 Devices: less than 5 sec.
• Data Reliability – Greater Than 99%
• Ethernet
• Secure Sockets Layer (SSL) enabled (default) TCP/IP communications
• Smart Wireless Gateway Access - Role-based Access Control (RBAC) including:
• Administrator, Maintenance, Operator, and Executive. Administrator has complete control of the Gateway and connections to host systems and the self-organizing network.
• Self-Organizing Network
• AES-128 Encrypted WirelessHART, including individual session keys. Drag and Drop device provisioning, including unique join keys and white listing.
• Internal Firewall
• User Configurable TCP ports for communications protocols, including Enable/Disable and user specified port numbers. Inspects both incoming and outgoing packets.
• Third Party Certification
• Wurldtech: Achilles Level 1 certified for network resiliency National Institute of Standards and Technology (NIST): Advanced Encryption Standard (AES) Algorithm conforming to Federal Information Processing Standard Publication 197 (FIPS-197).
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AIM® Functional Design Specification
4.3AIM® Wireless Gateway data interface
Table 11: AIM Wireless Gateway Interface Screenshot
15
AIM® Functional Design Specification
Section 5: Field Network
5.0 Overview & Fundamentals
The AIM system uses a wireless mesh as described in Section 3 for communication. The gateways
are capable of coordinating a network of up to 100 points. If there are more than 100 points within a
monitored area, additional gateways will be needed and their networks will overlap.
5.1 Required Information
When installing the AIM system it is important to consider the location of the monitored points and the
gateway and the possible communication paths while minding distances and obstructions. Typical
communication distances are listed in Armstrong’s AIM manual # IOM-256-A , page 2 of 16.
5.2 Best Practices
See “Designing a WirelessHART Network” in Armstrong’s AIM manual # IOM-256-A, page 2 of 16.
5.3 Network Installation
The communication network will automatically form in the field when the transmitters are installed. It is
important to remember that each network behaves individually. Therefore each network that is setup
must have direct communication with the gateway associated with that particular network.
16
AIM® Functional Design Specification
Section 6: HART Field Communicator
6.0 Overview & Fundamentals
The HART Field Communicator supports WirelessHART devices, letting the user to configure,
maintain, or troubleshoot devices. The HART Field Communicator includes a color LCD touch screen,
a Li-Ion battery (Power Module), a SH3 processor, memory components, System Card, and integral
communication and measurement circuitry. The HART Field Communicator also supports multiple
languages.
The HART Field Communicator is designed to operate with a wide range of WirelessHART devices
independent of device manufacturer. Device interoperability is achieved through the Electronic Device
Description Language (EDDL) technology supported by the HART Communication Foundation. Basic
testing is performed on all device descriptions. Each device manufacturer is asked to certify that they
thoroughly tested their devices with the HART Field Communicator. New device descriptions are
available from the HART Field Communicator Easy Upgrade Utility or the Resource CD or DVD.
6.1 HART Field Communicator Specifications
PROCESSOR AND MEMORY
Microprocessor
• 80 MHz Hitachi® SH3
Memory Internal Flash
• 32 MB
System Card
• 1 GB secure digital card
RAM
• 32 MB
PHYSICAL
Weight
• Approximately 1.65 lb. (0.75kg) with battery
Display
• 1/4 VGA (240 by 320 pixels) color, 3.5 in. (8.9 cm) transflective display with touch screen
• Anti-glare coated
Keypad
• 25 keys including 4 action keys, 12 alphanumeric keys, tab key, function key, backlight key, power key, and 4 cursor-control (arrow) keys; membrane design with tactile feedback
POWER SUPPLY / CHARGER
Battery
• Rechargeable Lithium-Ion power module
Battery Operating Time
• 20 hours – continuous use
• 40 hours – typical use
• 80 hours – standby mode
Battery Charger Options
• Input voltage 100-240 VAC, 50-60 Hz
• Cables included with U.S., Europe, and U.K. plugs
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AIM® Functional Design Specification
CONNECTION
Battery Charger
• Mini DIN 6-pin jack
HART and Fieldbus
• Three 4mm banana jacks (one common to HART and FOUNDATION fieldbus)
IrDA Port
• IrDA (Infrared Data Access) port supporting up to 115 Kbps
• ±15 degrees recommended maximum angle from center line
• Approximately 18 in. (45.7 cm) recommended maximum distance
Bluetooth
• Up to 32.8 ft. (10 m) communication distance
• Uses standard Windows drivers
• FCC, IC, and CE approvals
• Certified for use in over 60 countries
ENVIRONMENTAL
Usage
• -10°C (14°F ) to +50°C (122°F )
• 0% to 95% RH (non-condensing) for 0°C (32°F ) to +50°C (122°F )
Charge
• 10°C (50°F ) to +40°C (104°F )
Storage With Batteries
• -20°C (-4°F ) to +55°C (131°F )
Storage Without Batteries
• -20°C (-4°F ) to +60°C (140°F )
Enclosure Rating
• IP51 (from front)
Shock
• Tested to survive a 1-meter drop test onto concrete
EASY UPGRADE REQUIREMENTS
Usage
• PC with Internet access
• CD Rom drive
• IrDA port (or adapter) or Bluetooth (or adapter)
• SD Card Reader (required for some upgrades)
• Windows XP (SP2 or SP3), Windows Vista Business (SP1), or Windows 7
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AIM® Functional Design Specification
6.2
HART Field Communicator Dimensions
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AIM® Functional Design Specification
Section 7: AIM® Monitor Software
7.0 Overview & Fundamentals
AIM® Monitor Software is an application based software that will poll multiple AIM® wireless gateways
and compile the transmitted information into a single database. The AIM® software displays this
information in easy to read symbols indicating trap and battery status.
7.1AIM® Monitor Software Functionality/Description
Functionality: The AIM® software monitors and manages data from the AIM® wireless system. The
gateways allow for only 100 points to be viewed, while AIM® software allows for a limitless number
of points. By combining all of the gateways into one central location the user can manage all of the
data for the entire system. AIM® software reduces the amount of time spent on monitoring systems
by simplifying the output fields. The AIM® ST5700 output fields displayed in the gateways are: 1 =
good trap, 2 = cold trap, and 3 = blow through trap. The Software translates the values it receives
from the gateways and relays them as a trap status. Each trap status is expressed as an icon and a
description.
Data connectivity issues, No Data Available, Device not configured and Out of Service are displayed
in the trap status field so corrective action can be taken to restore communication.
Furthermore, the software notifies the battery status, Battery Good, Battery Low and Battery Critical.
Table 13: AIM® Software status legend
The software summarizes total quantities of trap status and displays to the right of each condition.
AIM® software can group traps together creating reporting groups. The reporting groups allow the
user to organize monitoring points into areas for more finite analysis.
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AIM® Functional Design Specification
7.2AIM® Monitor Software User Interface:
The AIM® software interface will display the information from the AIM® devices in the field in an easy to
read pass/fail user interface. Large, easily identified icons are used allowing the user to quickly scan
the trap population and identify steam trap failures.
•
•
•
•
•
•
•
•
•
•
•
•
The steam trap monitoring points are displayed as such:
Trap Tag # = Trap equipment number
Trap Status = Symbol of the current trap status
Temperature = Current Pipe Temperature at steam trap
Trap Type = The generic type of steam trap
Critical = Identification if trap is critical
State Change Timestamp = Time at which the trap changed from the state it was previously, to the state it is currently
Monitor Tag = Tag of the monitoring device
Burst Rate = Identifies the transmission time intervals
Monitor Status = Displays the current status of the monitoring device
Battery Status = Symbol of the current battery condition
Gateway = Identifies the gateway the monitoring device reports to
•
•
•
•
•
•
•
•
•
•
•
Table 14: AIM® Software User Interface
The AIM® software has a filter feature for equipment status allowing the user to quickly identify failed
equipment or equipment in an alarm status.
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AIM® Functional Design Specification
7.3 AIM® Software System Requirements
Supported Microsoft Windows® Operating Systems
Windows 7 x86 (32-bit)
Windows 7 x64
Vista x86 (32-bit)
Vista x64
XP x86 (32-bit)
XP x64
Yes
Yes
Yes
Yes
Yes
Yes
Computer and Software Requirements:
RAM
Software
CPU
Other
Network
Minimum: 512 MB RAM
Recommended: 1GB RAM
Microsoft .NET Framework version 3.5 SP2
Microsoft SQL Server Compact 3.5 SP2
Microsoft Internet Explorer version 6.x or higher recommended
Adobe Acrobat version 7.0.7 or higher
Intel® or AMD® processors
Disk Space 2 GB free space
DVD drive
LAN TCP/IP network connection to the HartIP network.
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AIM® Functional Design Specification
Section 8: SteamStar®
8.0 Overview & Fundamentals
SteamStar® is an analytics software that manages single or multiple facilities steam assets and
provides real time energy and emissions losses. The basic reporting package includes an executive
summary, defective reports, recommendation reports, and complete log detail report. SteamStar®
also has advanced reporting tools that provide benchmarking, trending, emissions, work order and
multi-site reports. SteamStar® is used as an on-going maintenance tool to help manage steam assets
and minimize energy losses by utilizing the AIM® wireless monitoring system to update the steam
trap condition real-time. Once the steam trap is updated in the database from AIM®, SteamStar®
calculates the energy losses based on the steam trap model, size, type, steam pressure, steam
application and time in service. SteamStar® can be setup as a cloud hosted solution or as a client
hosted solution.
If client hosted, SteamStar® can be used as a global reporting tool for steam asset management and
maintenance.
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AIM® Functional Design Specification
8.1 Software Homepage
The homepage is dashboard view of how all sub sites are performing.
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AIM® Functional Design Specification
8.2 Steam Asset Database
All steam assets can be tagged and tracked for real-time condition reporting.
Steam Trap Data: All specific data pertaining to the steam trap can be databased:
•
•
•
•
•
•
•
•
•
•
•
•
Tag Number
Application
Location
Time in Use
Manufacturer
Model/Connection Size
PMO (psig)
Connection type
Pressure In (psig)
Pressure Out (psig)
Condensate Load
Piping Configuration
• Condition
• OK = Good Trap
• CD = Cold Trap
• BT = Blow Through (Losing live steam)
• LOS = Loss of Signal
• RC = Rapid Cycling
• PL = Plugged
• OS = Out of Service
• FL = Flooded
• CC = Cycle Count
• RA = Relief Alarm
• OT = Over Temperature
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AIM® Functional Design Specification
8.3 Global Setup (if desired)
Sites can be setup regionally, if desired for full global access view or limited site access view based
on access.
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AIM® Functional Design Specification
8.4 Benchmarking Reports
Reports can be summarized by Application, Manufacturer, Generic Type or Equipment Condition
8.5 Trending Analysis
View performance trends over time. Report can be summarized by steam loss, monetary loss or
emissions loss.
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AIM® Functional Design Specification
8.6 Emissions Report
Emissions Report gives you a summary of your steam trap population as well as steam loss,
monetary loss and emissions loss.
8.7 Work Order Maintenance Report
Users can create work order maintenance reports based on energy loss priority.
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AIM® Functional Design Specification
Section 9: System Architecture Samples
Cloud Hosted
Client Hosted
29
Armstrong International
North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstronginternational.com
Design Specification 1501
Printed in U.S.A. - 6/13
© 2013 Armstrong International, Inc.
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