LACO PROTOCOL DESCRIPTIONS TITANTEST™
106
© 2018 LACO TECHNOLOGIES, INC. - TitanTest itra01en1-07 SB.fm - 1807
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12 Fill com-
plete**
Fill complete**
14 DGND Reference potential of the digital inputs, galvanically insulated
15 …
… 22
DO1 … 8
Digital outputs, not galvanically insulated, active 24 V ± 10%, passive on DGND (0 V)
Maximum allowed current:
800 mA for all outputs together
Upon switching on, all outputs are active for approx. 1 s.
15 Ready to start Enabled when the device is ready to evacuate the test volume.
16 Ready to mea-
sure
Enabled when the device measures, i.e. in either ULTRA, FINE, or GROSS state
17 Leak Enabled when the alarm limit is activated and exceeded, disabled below 90% of this
value
18 Error Enabled in error state
19 Calibrate Ac-
knowledge
Enabled if the device is waiting for a confirmation during calibration: internal calibra-
tion:
- Apply factors?
external calibration:
- Calibration leak opened and signal stable?
- Calibration leak closed and signal stable?
- Apply factors?
20 Start Fill If in Auto Test mode, this outpout is enabled once background is achieved.
21 Bypass Valve Enabled if bypass valve is open
(control bypass option)
22 No Leak Active if the alarm setpoint was exceeded.
23 DGND (0 V) Reference potential of the digital outputs, not galvanically insulated
25 +24 V +24 V e.g. for actuating the digital inputs
0.8 A slow fuse
Table 49: INPUT/OUTPUT: Control and output signals (Contin.)
Pin Assignment Explanation
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