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Configuration & Commissioning
Initial Setup
RS485 Setup
These steps may be completed on the SA380TX touchscreen, or via web-based configuration tool.
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This screen is a poor indicator of connection status, as the state of the digital channels depends on the fault condition of the cables under test. Bender CONN DN should be clear.
Real Time Analogue Screen:
Press the "Next Channels" button twice to scroll to the analogue channels received from the isometer.
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If no RS485 data is visible: Be patient. isometers may take up to 2 minutes to complete a single measurement, therefore it may be up to two minutes before data is visible Check the integrity of the wiring. It could be poorly terminated cable. Check the polarity of the wiring. It is very easy to get the "A" and "B" the wrong way around Check for data on the RS485 bus. Ideally use a serial port on a computer to check for traffic. The baud rate is 9,600 bps. You should a string of numbers being transmitted periodically Check for data on the RS485 bus. Alternatively connect a volt-meter with a rapid response across the A and B links. a brief spike in voltage should be observed when data is present on the bus, Bear in mind the low update rate, and that the RS485 message only lasts a few milliseconds. |
MAIN SCREEN
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REALTIME ANALOGUE
4-20 mA
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4-20mA
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4-20MA CONNECTION
Setup
You will need to apply a polynomial mapping to translate the 4-20mA output from the Bender RK170 into a readable resistance.
It is strongly recommended that this is done on the web-based configuration tool.
This settings box is accessed by double clicking here:
COMING SOON - HOW TO OPEN THE SENSOR SCALING BOX
Please ensure you enter the values below EXACTLYThis curve fit is designed to minimise error below 150 k Ohmshown below exactly, although you may change the Name field of the channel to suit.
COMING SOON - CRAZY BENDER CHANNEL SETTINGS
After applying the setting to the SA380TX, Check that the value real-time analogue display approximately matches that shown on the isometer device.
COMING SOON - REAL-TIME ANALOGUE DATA
Digital
Simply Rename the Digital Channels to match the feeder same (e.g UP, DOWN, BRANCH etc)
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