TB20 AI, 12 Bit, I

Parameters for the module

Parameters for each channel

Measuring ranges 0 ... 20 mA, 4 ... 20 mA, ±20 mA, individually configurable for each channel
Measurement resolution: 11 bit + sign
Diagnostic messages
Wire break detection (for 4 ... 20 mA)
Limit value alarms for each channel
A bi-color LED (blue/red) indicates the module operating status and any malfunctions
2 analog inputs for measuring current, electrically isolated from the backplane bus
2 process input words

Meer informatie aanvragen

Dimensions (DxWxH)	110 x 14 x 73 mm
Weight	Approx. 70 g
Electrical isolation
	from the backplane bus	Yes
	Between the channels	No
Current draw
	External	Not needed
	Internal	Max. 95 mA
Power dissipation	Max. 0.7 W
Measuring ranges / load resistance	0 ... 20 mA / 50 ohms, 4 ... 20 mA / 50 ohms, ±20 mA / 50 ohms
Measuring method	Integration
Measurement resolution	12 bits + sign
Interference frequency suppression	None \| 10 Hz \| 50 Hz \| 60 Hz \| 400 Hz
Refresh rate / conversion rate	Number of active channels x conversion time + 16 ms for wire break detection when activated. The conversion time will depend on the interference frequency suppression: None: 8 ms 400 Hz: 45 ms 60 Hz: 109 ms 50 Hz: 128 ms 10 Hz: 342 ms
Diagnoses	Upper measuring range limit exceeded (overflow), lower measuring range limit fallen below (underflow), wire break (for 4 ... 20 mA only), parameter assignment error
Process alarms	Upper and lower limit per channel
Error limits
	Operational error limit in the entire temperature range	±0.5 % relative to the nominal range
	Basic error limit at 25 °C	±0.3 % relative to the nominal range
	Temperature error	±0.005 %/K relative to the nominal range
	Linearity error	±0.05 %/K relative to the nominal range
	Repeating accuracy in steady state at 25 °C	±0.05 %/K relative to the nominal range
Parameter configuration length	22 bytes
General error indicator	Red LED
Hot-swap capable	Yes