Appendix B DIP switch settings
266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB
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B.2
Write protection
DIP switch 5 is used for transmitter write protection. If DIP switch 5 is ON, the transmitter is in write-protect mode and will not accept
write commands. The state of switch 5 may be set before or after power is applied and also at any time during operation of the
transmitter.
B.3
DIP switch states
When power is applied to the transmitter, the application software checks for the states of DIP switches 1 through 5 on the
electronics module. Depending upon the combination of the switches, nonvolatile contents may be transferred from the
measurement assembly to the electronics module (Table 19). Nonvolatile contents will be transferred if, and only if, the write-protect
switch is OFF.
Table 19: DIP switch states
DIP switch and states
1
2
3
4
5
6
Description
OFF
OFF
OFF
OFF
OFF
Not used
Default settings. Writing to the transmitter is allowed.
ON
ON
ON
ON
OFF
Not used
SPECIAL NOTE: Clears the nonvolatile memory in the transmitter and reloads the fixed
defaults. It will then copy the current configuration of the electronics module to the
measurement assembly. This should only be used when upgrading a device in which the
software revision is 1.0.1.
ON
OFF
OFF
OFF
OFF
Not used
Copies nonvolatile content (Factory calibration values and User saved calibration values)
from the measurement assembly to the electronics module. Performed when the
electronics module is replaced in the field.
ON
ON
OFF
OFF
OFF
Not used
Copies nonvolatile content from the electronics module to the measurement assembly.
OFF
OFF
ON
ON
OFF
Not used
Clears the nonvolatile memory in the transmitter. The fixed defaults will be loaded into the
run time memory.
OFF
OFF
OFF
OFF
ON
Not used
Writing to the transmitter configuration is not allowed. Editing capabilities using the HMI
will not be present. DIP switches 1-4 are disabled.
Summary of Contents for 266 MODBUS
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