SVI-II Instruc Man.book - Fagerberg

Check Out and Power Up
Operational Checkout
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
2.4 Lite. The positioner ships in the unlocked mode. See
ValVue 2.4 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.
Table 9 Pushbutton Lock Security Level
Level
Security Level 3
Security Level 2
Security Level 1
Access
Allow Local Buttons: Buttons on the SVI II AP 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.
Security Level 0 Lock Out All Buttons: The buttons are disabled (level 0).
Hardware Configuration Lock
Additional security is achieved using the hardware configuration-lock jumper
shown in Figure 21 on page 34. 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 2.4 and
HHC 375 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.
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