Instruction manual

6 RFT9739 Rack-Mount Transmitter Instruction Manual
Getting Started
continued
Security modes
Switches 1, 2, and 3 are security switches, which enable the user to
disable flowmeter zeroing, disable resetting of totalizers, and write-
protect all configuration and calibration parameters.
Switch settings enable any of eight possible security modes. Different
modes determine which functions are disabled and whether
configuration and calibration parameters are write-protected. The
following functions can be disabled:
• Flowmeter zeroing using digital communications
• Flowmeter zeroing using the Scroll and Reset buttons
• Totalizer control, with flow, using digital communications
• Totalizer control, with flow, using the Scroll and Reset buttons
• Totalizer control, with zero flow, using digital communications
• Totalizer control, with zero flow, using the Scroll and Reset buttons
Table 2-1
lists the parameters that are write-protected and functions that
are disabled for each security mode. Security modes 1 through 7 are
entered immediately when switches are set.
For information about security mode 8, see pages 7 through 8.
Table 2-1. Security modes
Switch settings
Mode
1
Mode
2
Mode
3
Mode
4
Mode
5
Mode
6
Mode
7
Mode
8*
*Changing the settings of switches 1, 2, and 3 does not immediately implement security mode 8. For more information about
security mode 8, see pages 7 through 8.
Switch 1
Switch 2
Switch 3
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
Function/
parameter
Performed
with
Mode
1
Mode
2
Mode
3
Mode
4
Mode
5
Mode
6
Mode
7
Mode
8
Flowmeter
zeroing
Zero button or
Reset button
Disabled Disabled Disabled Disabled Disabled Disabled Disabled
HART or
Modbus
Disabled Disabled Disabled Disabled
To t a l i z e r
control,
no flow
Scroll and
Reset buttons
Disabled Disabled Disabled Disabled
HART or
Modbus
Disabled Disabled Disabled
To t a l i z e r
control,
with flow
Scroll and
Reset buttons
Disabled Disabled Disabled Disabled Disabled Disabled Disabled
HART or
Modbus
Disabled Disabled Disabled Disabled Disabled Disabled
Configuration and
calibration parameters
Write-
protected
Write-
protected
Write-
protected
Write-
protected
Write-
protected
Write-
protected