Rockwell Automation 1771-IFE ANALOG INPUT MODULE - Manual (Page 61)

Appendix
A
Publication 1771Ć6.5.115 - February 1999
Specifications
Description Value
Inputs per module 16 single-ended; 8 differential low level
Module Location 1771 I/O rack - 1 slot
Input voltage ranges (nominal)
+1 to +5V dc
0 to +5V dc
-5 to +5V dc
-10 to +10V dc
0 to +10V dc
Input current ranges (nominal)
+4 to +20mA
0 to +20mA
-20 to +20mA
Resolution 12-bit binary
12 bits plus sign on bipolar ranges
Accuracy 0.1% of full scale range @ 25 o C
Linearity +1 LSB
Repeatability +1 LSB
Isolation Voltage Isolation meets or exceeds the requirements of UL Standard 508,
and CSA Standard C22.2 No. 142.
Input overvoltage protection
200V (voltage mode) 1
8V (current mode) 2
Input overcurrent protection (current ranges) 30mA
Common mode voltage
+14.25 Volts
Input impedance >10 Megohms for voltage ranges; 250 ohms for current ranges
Common mode rejection 80 db, dc-120Hz
Current Requirements 500mA @ +5V from I/O chassis backplane
Temperature Coefficient +50ppm/ o C of full scale
Power Dissipation 2.5 Watts (maximum)
Thermal Dissipation 8.52 BTU/hr (maximum)
Unscaled BCD and binary output to
processor
0000 to +4095
10
for polar ranges (0 to 5V, +1 to +5V, 0 to +20mA,
and +4 to +20mA)
-4095
10
to 4095
10
for bipolar ranges ( +5V, +10V, +20mA)
Engineering units sent to processor +9999
10
with selectable scaling
Internal scan rate
13.7ms for 8 differential inputs (no digital filtering) -add 0.3ms
for filtering
27.4ms for 16 single-ended input (no digital filtering) -add 0.3ms
for filtering
Specifications continued on next page