Endress+Hauser alpha-log Betriebsanleitung Seite 56

3 Installation/connection/setting up
3x3 (continued)
3.10.4. Event text
410 Event text lines
...
421
3.10.5. Control input
Attention: Various functions can be allocated to the control inputs. They are high
active. This means the described action is initiated by connecting the respective
input with 12 ... 24 VDC.
510 Text printout
...
521
530 Measured values
3
531 Recording
remote control
532 Date / time
3
printout
533 Release
parameter setting
2
up
1
Available only with "Alphanumeric" option
2
Available only with "Digital I/O" option
3
Available only with a combination of "Alphanumeric" and "Digital I/0" options
4
Available only with "Alphanumeric" and/or "Digital I/O" option
54
2
Two point
(LV1 the first). The action taken on LV1 is
deactivated.
Example: Control a pump filling a water tank:
Addr. 3x0 / 3x1: LV 1 = 10 %, lower, relay 1
Addr. 3x2 / 3x3: LV 2 = 90 %, upper, two point
If the signal goes below 10 % relay 1 switches
(eg. Tank refill pump).
When the signal reaches 90 % relay 1 is switched
off until the signal goes below 10 % again.
Note: This function is also valid if "text printout" or
"feed rate change" has been set in address 3x1.
1
15 presettable characters,
Printout on limit infringement (see addresses
3x0.. 3x3) and / or on activating one of the allocated
control inputs
2
function / Relay output
3
Printout of the allocated event text line.
(see addresses 410 ... 421)
Printout of the instantaneous measured value
Recording with preset parameters. If this input is
"high", meaning active, then the signal trace (feed
rate) is switched off. Limits continue to be monitored.
Printout of date and time
Setting up parameters from the front push buttons
possible. If this input is "high" then it is not possible
to change the recorder settings.
: LV2 defines the second switch point
2
(see addresses 510 ... 521)
2
operating mode