IB0147 Rev. 08 LEFM 200 Modbus User Manual
Section 1 Page 2 December 2010
3. Send Password to Register 2000. (The password expires after ~5 minutes.) The password is
typically controlled by the site manager. If the password cannot be determined, contact
Cameron’s Measurement System division to determine the as-shipped password.
4. Change the register using Modbus protocol.
5. Activate the Burn and Use Register.
The transmitter will not start using any of its new fields until the Holding Register Burn and
Use (address 170) is activated. When this register is activated (by putting a 1 into the field),
all the registers are burned into the transmitter’s memory and the device will restart using the
latest registers. This must be completed before the password expires!
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