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12
94
Setting lockout (HMI)
Setting lockout (HMI)
1.
Configure the HMI--BLOCKSET functional input to the binary
input, which is determined by the engineering or the input
that is not used by any other function.
2.
Set the setting restriction to SettingRestrict = Block.
3.
Connect rated DC voltage to the selected binary input.
4.
Try to change the setting of any parameter for one of the func-
tions.
Reading of the values must be possible.
The terminal must not respond to any attempt to change the setting
value or configuration.
5.
Disconnect the control DC voltage from the selected binary
input.
6.
Repeat the attempt under step 4.
The terminal must accept the changed setting value or configura-
tion.
7.
Depending on the requested design for a complete REx 5xx
terminal, leave the function active or reconfigure the function
into the default configuration and set the setting restriction
function out of operation to SettingRestrict = Open.
8.
Continue to test another function or complete the test by set-
ting the test mode to off.
Chapter 11
Verifying settings by secondary
injection
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