Specifications

Publication 1747-SG001E-EN-E - February 2013
20 Select SLC 500 I/O Modules
Overall accuracy drift (maximum) +63 ppm/°C of full scale (maximum) +88 ppm/°C (maximum)
Gain error @
25 °C (77 °F)
+0.263% (maximum) +0.323% of full scale
Gain error, 0…60 °C (32…140 °F) +0.461% (maximum) +0.530% of full scale
Gain error drift ±57 ppm/°C ±79 ppm?/°C
Voltage Input Specifications for 4-Channel Modules
Specification 1746-NI4 1746-NIO4I 1746-NIO4V 1746-FIO4I 1746-FIO4V
Output Specifications for 4-Channel Modules
Specification 1746-FIO4I 1746-NIO4I 1746-NO4I 1746-FIO4V 1746-NIO4V 1746-NO4V
Number of outputs 2 2 4 2 2 4
Backplane current (mA) @ 5V 55 mA 55 mA 55 mA 55 mA 55 mA 55 mA
Backplane current (mA) @ 24V 150 mA 145 mA
195 mA
(1)
120 mA 115 mA 145 mA
Isolation voltage Tested @ 500V AC and 710V DC for 60 seconds
Full scale 21 mA 10V DC
Output range (normal) 0…20 mA -1 LSB ±10V DC -1 LSB
Output coding 0…32,764 for 0…21 mA -32,768…+32,764 for ±10V DC
Output resolution (per LSB) 2.56348 μA 1.22070 mV
Converter resolution 14-bit 14-bit
Conversion method R-2R ladder R-2R ladder
Step response 2.5 ms (5…95%) 2.5 ms (normal)
Load range 0…500 Ω 1K…? Ω
Load current, max N/A 10 mA
Overrange capability 5% (0…21 mA -1 LSB) N/A
Overall accuracy @
25 °C (77 °F)
±0.298% of full scale ±0.208% of full scale
Overall Accuracy,
0…60 °C (32…140 °F)
±0.541% of full scale ±0.384% of full scale
Overall accuracy drift, max ±70 ppm/°C of full scale ±0.384% of full scale
Gain error @ 25 °C (77 °F) ±298% of full scale ±208% of full scale
Gain Error, 0…60 °C
(32…140 °F)
±516% of full scale ±374% of full scale
Gain error drift, max ±62 ppm/°C of full scale ±47 ppm/°C of full scale
(1) The 1746-NO4I and 1746-NO4V analog output modules have connections for user-supplied 24V dc power supplies. When external 24V DC power is used, the module only
draws 5V DC current from the SLC backplane. If an external 24V DC power supply is required, the tolerance must be 24V ±10% (26.6…26.4V DC). The user power supplies
for SLC 500 modular systems, 1746-P1, 1746-P2, 1746-P5, and 1746-P6 power supplies do not meet this specification.