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18 (36), 0-004-7771-2 (GB) TAC AB, 2003-07-01
TAC Xenta 400 I/O modules 3 Technical description
3.4 The TAC Xenta 451/452 Analog Input and Output module
The modules have four universal inputs, four thermistor inputs and two
analog outputs. The universal inputs can also be used as digital inputs
or pulse counters.
In addition, the TAC Xenta 452 is equipped with LED status indicators,
one for each universal input, when used as a digital input, and manual
override controls for the analog output values. The LED input status
colors, red or green, are individually selectable, by setting switches
under the front cover.
Terminals (451, 452) and Controls/Indicators (452)
4 DI Indi-
cators:
⇑ red
⇓ green
TAC Xenta 451/452 terminals and TAC Xenta 452 Analog output override controls and Indicators
2 Analog outputs:
Override controls
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
G G0 C1C2 U1 M U2 U3 M U4
Y1 M Y2 B1 M B2 B3 M B4
UI
~ 0
24 V AC/DC
}
Comm
}
AO
Thermistor inputs
MAN 1
AUTO
MAN 2
AUTO
1 2 3 4
AO
0 - 10V
TAC Xenta 452
0 - 10V
DI
Type No. TAC Menta Block type Terminal ref. Ind./ Override (452)
Thermistor inputs 4 AI - Analog input B1 - B4 –
Universal inputs 4 AI - Analog input or U1 - U4 –
DI - Digital input or U1 - U4 red or green / –
CNT - Pulse counter U1 - U4 –
Analog outputs 2 AO - Analog output Y1 -Y2 – / Man-Auto