New modules aid remote monitoring, control
The new BusWorks 930MB Series input-output modules capture data from as many as four RTD temperature sensors or resistance input signals for communication over a Modbus network.
Also, four built-in solid-state relays can monitor high-low input limits for independent local alarms or perform on-off switching functions under instructions from a remote controller.
Setup is fast and easy with Windows configuration software for selection of input-output ranges, limit alarms, and other operating parameters. These modules are suited for SCADA and other remote input-output uses.
Modules employ the latest digital technology. A microcontroller performs advanced signal processing functions and runs self-diagnostic routines for better reliability. For fast communication, high-speed RS-485 transceivers support data transfer rates up to 115K baud. And for higher accuracy with less noise, RTD signals are sampled using 16-bit sigma-delta analog-digital converters.
Internal nonvolatile memory stores configuration settings for easy printing, archival to disk, or duplication on other modules. Optical isolation separates input, output, power, and network circuits to increase noise-transient immunity and prevent ground loops. Status LEDs provide diagnostic feedback and visually indicate which channels are outside their calibrated range.
Watchdog timer functions allow the application to define the module's fail-safe output state. The watchdog timer invokes the fail-safe condition when communication between the host and module exceed a duration specified by the application. For further security, a second hardware watchdog timer monitors the microcontroller for failed operations or a lockup condition and automatically resets the unit.
Modules are compatible with human-machine interface (HMI) software packages that support Modbus communication. Modules may be configured using generic drivers provided with the HMI software to access the Modbus register maps.
A full compliment of accessories to complete the system includes isolated and nonisolated RS-232-to RS-485 signal converters for PC-to-network communication. Network repeaters extend the communication distance another 4,000 ft and allow connection of an additional 32 network devices. Power supplies, mounting hardware, and surge suppressors are also available.
Source: Acromag Inc., Box 437, Wixom, MI 48393-7037.
Piping plant design software
New CADWorx/PIPE Version 2002 is an enhanced edition of this company's Auto- CAD-based software for piping and plant design.
The new version now provides live bidirectional data base links between the design model and external data bases and adds new multilanguage support that allows users to change command prompts, dialog boxes, and outputs to their own languages.
Also, it includes Navis Works Publisher, bringing real-time walk-through and animation to the user's desk top. Other enhancements include Tool Tips, which makes component information accessible any time by just passing the cursor over any item in the model; a Stop Sign feature that lets the designer determine the breakpoints and content of automatically generated fabrication isometrics; and an enhanced Bill of Material that allows the grouping and sorting of items into their fabrication classes.
The user can now access and modify the total project model from any model area within the design. The new version also has revised tools for paper space annotation and dimensioning of items in the model that help simplify this task and eliminate errors. Also, newly rewritten context-sensitive help, documentation, and tutorials are easily accessible.
CADWorx is a new generation suite of AutoCAD-based software offering full- featured 2D, 3D, isometric, and process and instrumentation diagram (P&ID) capa bilities. The CADWorx products, which include CADWorx/PIPE, CADWorx/P&ID, and LOOPS, provide intelligent drawing to data base connectivity, advanced levels of automation, easy-to-use design techniques, and a bidirectional link with analysis programs.
Source: Coade Inc., 12777 Jones Rd., Suite 480, Houston, TX 77070.
New shuttle deploys well-logging tools
A new Compact well shuttle provides safe, fast deployment of open hole logging tools into high angle-horizontal wells and wells with bad hole conditions.
The shuttle is a hybrid deployment system for Compact open hole logging tools. The tools are housed at the surface inside drill pipe where they are protected while running into the well.
They are released into open hole only when the shuttle nears bottom, after which they remain anchored to the pipe and acquire data on the way out.
The system does not use a wireline, so the shuttle runs in at tripping speed. Pipe can be rotated and reciprocated to assist reaching bottomhole, and circulation can be maintained to help clean the hole and control the well. Logging can be integrated with a wiper trip to reduce rig time.
The maker says its shuttle replaces wireline pipe-conveyed logging in high angle wells and provides an alternative to logging while drilling in wells that can be drilled without real time formation evaluation. It is also an intervention technique delivering formation evaluation data.
Source: Reeves Oilfield Services Ltd., Gotham Rd., East Leake, Loughborough, Leicestershire LE12 6JX, UK.
