 |
|
I'll try to add more Frequently Asked Questions here. GENERAL
BEN 5000
BEN 500C
GENERAL HARDWARE What is the difference between the BEN 5000 and the BEN 500C?
What are the largest channel counts in the BEN 5000 and 500C? For the BEN 5000 the largest single system can be
192 Analog inputs and 576 Digital inputs. What is OS-9, and how is used in the BEN? OS-9 is an operating system. The CPU board used in
the original BEN 5000 systems was manufactured by a company called
MII. This was an off-the-shelf part that plugged into the G96 backplane.
It used a version of OS-9, customized for this board by Microware
Systems Co. It is a real-time multi-tasking, secure embedded system
based on the Motorola 68000 microprocessor family. Here is an analogy that I have used often: Here are a couple of links if you want to know more... http://os9archive.rtsi.com/os9faq.html#what_is_os9 http://www.radisys.com/oem_products/ds-page.cfm?ProductDatasheetsID=1124
How do I tell what the serial number of my DFR is? There are a couple of ways to positively identify
your DFR by its serial number. How do I tell what version of CPU firmware I have? The version of firmware in the BEN can be identified in a few different ways. If the DFR has power & you have communications with it, you can use BEN 32 STATUS to view the firmware version. If you are in front of the DFR you can navigate to a menu where this is displayed (see the serial number question above for details - it's on the same screen). Lastly this information is printed on the EPROM's on the Multi I/O and CPU boards.
What is the wetting voltage for the event / digital / contact inputs? This is specified at the time of system order. It
can be verified by looking at the model number suffix on the Digital
Isolator boards (SENS 421-XX or 5421-XX). This is a question that has many variables. 1) Is the DFR connected to a modem for remote communications? If so, is the number accessible by anyone, or is it limited to your companies telephone system? See #4 & 5 below. 2) Is the DFR connected to a LAN for remote communications? See #4 & 5 below. 3) Have you as a user, programmed any username and passwords, restricting permissions to the DFR? Many different username/password combinations are possible for each DFR. For each of these combinations, different levels of permissions are then granted - for example restricted to only viewing a directory of records, but not making programming changes. 4) The method of communication between the DFR and a master station computer is not encrypted, however it does require that certain information be presented in a specific order, and in a proprietary format. The following criteria must be met before communications
may be established: 5) And last but not least, the DFR is not a device that is used to control any other protection device, as a relay is. Even if the DFR is shut off, no loss of control to any other device is possible. The DFR has 8 user programmable status relays, and these are used for annunciation, not control. The easiest method of 'locking down' the BEN is by taking advantage of these built-in features.
SOFTWARE How do I document my current DFR settings? Using the BEN 32 program, open a record, and print the parameters. The settings and parameters that were current in the DFR at the time the record was made, are stored with each recording. This is a file that contains a systems visibility to what sensors are available in that DFR. Each system has a unique file, keyed to the system serial number, and this file is encrypted at the factory, programmed in the DFR configuration, and must remain with the DFR. When will the Autocal and BENCFG programs be ported to Windows? Popular question… How do I change the PT (or CT) ratio on an analog input? The variables that hold the PT and CT information for each channel is part of the DFR configuration. To modify these values, you must have the BENCFG configuration and Analog Devices compiler programs. Not all customers have these additional programs, as their use requires additional training. There are two methods available to users that do
not have these modules, both will require the intervention of LEM
factory technicians:
BEN 5000 HARDWARE Are the power supplies in the BEN redundant? No. Each power supply provides power for a different part of the DFR. To be sure, you need to examine the internal power wiring diagram that came with your system. Is there a standard, off-the-shelf BEN 5000? Each system is carefully engineered to match the channel count and option loadout as specified by the customer's RFQ or specification. There are always differences in the number of current and potential and digital channels, as well as memory capacities and designed expansion to be factored in. Therefore there is no off the shelf BEN 5000. What are the fiber optic cable requirements for a BEN 5000 with a remote acquisition unit?
SOFTWARE
OPERATIONS
BEN 500C
HARDWARE
SOFTWARE
OPERATIONS
|
||
|
DISCLAIMER: |
||