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Masoneilan SVI II AP Installation and Maintenance Manual =
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© 2017 Baker Hughes, a GE company, LLC. All rights reserved.
To determine how to display and select a specific parameter value or configuration option,
refer to the menu structure diagrams shown in Figure 34 on page 74 through Figure 37 on
page 81. When using these diagrams as a map you can move through the menus to the
function you needed.
NOTE
If the pushbuttons are pushed after being locked by ValVue
software, the message LOCKED appears. Refer to the ValVue
User’s Guide for instruction about unlocking the pushbuttons.
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 secure position, shorting the two-pin header, configuration
and calibration are not permitted by the local interface or by remote communications.
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.
The following pages display the menu structure for operating the SVI II AP using local
pushbuttons.
Table 10 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).