Weidmuller WI-I/O-EX: Wireless I/O Expansion Modules v1.11 Uživatelský manuál stáhnout pdf (Strana 14)

WI-I/O-EX Serial I/O Module User Manual v1.11

Page 14 February 2010

2.2.3.1 Grounded Single-Ended mA Inputs

Single-ended current inputs allow twice as many inputs as the differential mode. This

mode is useful when the sensor loop can be grounded to the WI-I/O-EX module. Devices

may also be powered by the 24V supplied by the WI-I/O-EX. Refer to Figure 2-7:

Figure 2-7: Connection for single-ended current inputs. Transducers may be

externally powered or powered by the WI-I/O-EX +24V loop supply (ALS).

Note:

- The module is configured at the factory for this type of input

- To change the input configuration, refer to section 4.4

V-

AIN1

AIN2

AGND

WI-I/O-EX Module

ALS +24V

Loop powered

sensor

Externally powered

sensor

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 54 55

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Weidmuller WI-I/O-EX: Wireless I/O Expansion Modules v1.11 Uživatelský manuál Strana 14