ero electronic MKC, Руководство пользователя, Страница: 78 / 141

74
HOLD FUNCTION
By means of an logic input it is possible to stop the inputs
sampling keeping frozen the last measure values (main and
auxiliary input).
During measuring hold the instrument will continue to control the
process using the last measured values and the following
functions will be inhibited:
1) Local set point to remote set point transfer and viceversa
2) Manual to auto mode transfer
NOTE : The auto to manual transfer is allowed
The measure value on the upper display will be flash to indicate
the hold status
PARAMETER PROTECTION
Moving from one run time parameter group to another, the
instrument will show, at first, the group number (on the upper
display), the mnemonic code (on the lower display) and the
security status (on the middle display) of the group.
The possible security status are:
Enb
= the parameters of this group are not protected and they
may be modified;
inh = the parameters of this group are ever protected and
they cannot be modified
- - - - = the parameters of this group are software protected.
In this case, using “
s
“ and “
t
” push-button set a value
equal to the security code programmed during the "Run
time security code " (see page 23) and then push
“FUNC”.
If the programmed value matches the security code the
parameters of this group can be modified otherwise they
remain protected.
ATTENTION : One software key protects one or more run time
parameter groups so that when the software key is inserted, it is
possible to modify the run time parameters of all groups.
The software protection will be automatically restored when the
instrument comes back to the "normal display mode" (by
"MENU" push-button pressure or by the time out).
Xkc-1-C0.P65 5/29/02, 11:59 AM 74