Baker Hughes Masoneilan SVIII AP, Installation And Maintenance Manual, Page: 67 / 204

Masoneilan SVI II AP Installation and Maintenance Manual =
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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. See ValVue documentation for more details.
The SVI II AP offers several levels of plant security. It may be desirable, after initial setup, to
lock the pushbuttons so that the SVI II AP 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 32 on page 64. When set to the secure position, by shorting the two-pin header,
configuration and calibration are not possible using the local interface or any HART
®
communication tool. Pushbuttons, ValVue and handhelds are locked out, except to examine
configuration, calibration, and position. This is similar to Security Level 1 shown in the
Pushbutton Lock Security Level table.
Table 9 Pushbutton Lock Security Level
Level Access
Security Level 3 Allow Local Buttons: Buttons on the SVI II AP are fully enabled.
Security Level 2 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.
Security Level 1 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.
Security Level 0 Lock Out All Buttons: The buttons are disabled (level 0).