Hardware reference guide

I/O Modules
35013379 11/2011 529
Voltmeter Monitor Specifications
The following table shows the specifications for the voltmeter monitor for the analog
input/output module.
Common Specifications
The following table shows the common specifications for the analog input/output
module.
Internal Voltage Drop 7 Vdc min, 30 Vdc max @ 20 mA
Resolution (bits) 12
Accuracy Error @ 25° C +/- 0.20% of full scale
Linearity Monotonic +/- 1 LSB
Accuracy Error 0 ... 60° C Typical: +/- 0.004%/°C of full scale.
Maximum:+/- 0.007%/° C of full scale
Isolation
Channel to Channel 500 Vac, 750 Vdc, for 1 minute
Channel to Bus 500 Vac, 750 Vdc, for 1 minute
Output Channel to Input
Channel
500 Vac, 750 Vdc, for 1 minute
Update Time 15 ms for 2 channels
Settling Time 900 μs to +/- 0.1% of final value
Fault Detection Open circuit indicator light and status byte
External Power Supply See loop voltage above
Output Specifications
Voltmeter Monitor Specifications
Range 1 ... 5 V (Loop current must be active)
Scaling I
OUT
(mA) x 0.250 = V
OUT
(volts)
Output Impedance 300Ω typical
Maximum Wire Length 1 meter
Common Specifications
Required Addressing 5 Words In 2 Words Out
Bus Current Required (module) 350 mA
Fusing
Internal None required
External User discretion