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Pushbutton Locks and Configuration-Lock Jumper
Before performing any of these functions with the local display you must first ensure that the
pushbuttons are placed in the unlocked mode using ValVue. The positioner ships in the
unlocked mode.
The SVI FF offers several levels of plant security. It may be desirable, after initial setup, to lock
the pushbuttons so that the SVI FF parameters cannot be inadvertently changed by the
buttons. Several levels of software modifiable pushbutton locks are provided.
Hardware Configuration Lock
Additional security is achieved using the hardware configuration-lock jumper shown in
Figure 33 on page 66. When set to secure position, shorting the two-pin header, configuration
and calibration are not permitted by the local interface or by remote communications.
Pushbuttons, ValVue and a handheld are locked out, except to examine configuration,
calibration, and position. This is similar to Security Level 1 shown in Table 28.
Table 28 Pushbutton Lock Security Level
Level
Access
Allow Local Buttons
Buttons on the SVI FF are fully enabled.
Lock Out Local Calibration and
Configuration
Use the buttons to perform operations in normal operating mode and
manual mode. Do not go to configure or calibrate mode.
Lock Out Local Manual
Examine variables in normal operating mode but do not put the valve
in manual operating mode. Access to calibrate or configure modes is
not available.
Lock Out All Buttons
The buttons are disabled.
Содержание Baker Hughes Masoneilan SVI FF
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