Siemens SITRANS VP300, Руководство по эксплуатации, Страница: 80 / 190

Operate
6.2 Parameter description
SITRANS VP300 with or without HART
78
Operating Instructions, 03/2011, A5E01258666-03
"2.2.4 DI 2 Direction of action"
Factory setting: Standard
Setting options:

Standard
 Inverted
Purpose: To adjust to normally closed contact (NC) or a normally open contact
(NO).
Description: Use this parameter to set the direction of action of the input.

Standard: Digital input DI 2 is active when the contact on terminal
21/22 is closed or when there is voltage on terminal 11/12 (signal
status "Low").

Inverted: Digital input DI 2 is active when the contact on terminal
21/22 is open or when there is voltage on terminal 11/12 (signal
status "High").
"2.2.5 DO 1 Function"
Factory setting: Deviation
Options:
 Maintenance required

Maintenance demanded
 Maintenance alarm

DI 1 Digital input
 DI 2 Digital input

DI 3 Digital input
 A1 Alarm limit

A2 Alarm limit
 Deviation

Not in automatic mode
 Output inverted
Purpose: Specifying settings for output of error message and fault message.