VL-1225/6 Analog Input/Output Board
2-15
Current Loop Mode
While the VL-1225/6 cannot directly hook up to a 4-20 ma current loop, the addition of an external user-
supplied 500
W
precision dropping resistor can be used to develop a 2-10 volt signal proportional to the 4-
20 ma current. This voltage is applied to the VL-1225/6 as a differential-mode signal. The input range
should be jumpered for unipolar 0 to 10V operation. The circuit below can be repeated for all 8 differential
input channels.
Figure 2-14. Current Loop Input Mode
Configuration – Analog Input Configuration
Содержание STD32 VL-1225
Страница 3: ...ii VL 1225 6AnalogInput OutputBoard ...
Страница 29: ...2 22 VL 1225 6AnalogInput OutputBoard ...
Страница 47: ...4 14 VL 1225 6AnalogInput OutputBoard ...
Страница 55: ...6 6 VL 1225 6AnalogInput OutputBoard ...
Страница 69: ...7 14 VL 1225 6AnalogInput OutputBoard VL 1225 Schematic 03 09 93REV3 Reference VL 1225Schematic ...
Страница 70: ...VL 1225 6AnalogInput OutputBoard 7 15 VL 1225 Schematic 03 09 93REV3 Reference VL 1225Schematic ...
Страница 71: ...7 16 VL 1225 6AnalogInput OutputBoard VL 1225 Schematic 03 09 93REV3 Reference VL 1225Schematic ...
Страница 75: ...7 20 VL 1225 6AnalogInput OutputBoard VL 1226 Schematic 03 09 93REV3 Reference VL 1226Schematic ...
Страница 76: ...VL 1225 6AnalogInput OutputBoard 7 21 VL 1226 Schematic 03 09 93REV3 Reference VL 1226Schematic ...
Страница 77: ...7 22 VL 1225 6AnalogInput OutputBoard VL 1226 Schematic 03 09 93REV3 Reference VL 1226Schematic ...
