Specifications

Technical Specifications Appendix A
399
Table A-8 CPU 224XP and CPU 224XPsi Analog Input Specifications
General Analog Input (CPU 224XP, CPU 224XPsi)
Number of inputs 2 points
Analog input type Single-ended
Voltage range ±10 V
Data word format, ful l scal e range --32,000 to +32,000
DC Input impedance >100 KΩ
Maximum input vol tage 30 VDC
Resolution 11 bits pl us 1 sign bit
LSB v alue 4.88 mV
Isolation None
Accuracy
Worst case 0° to 55° C
Typical 25° C
±2.5% of full scale
±1.0% of full scale
Repeatability ±0.05% of full scale
Analog to digital c onversion ti me 125 msec
Conversion type Sigma Delta
Step response 250 ms max .
Noise rejection --20 dB @ 50 Hz typical
Table A-9 CPU 224XP and CPU 224XPsi Analog Output Specifications
General Analog Output (CPU 224XP, CPU 224XPs i)
Number of outputs 1 point
Signal range
Voltage
Current
0to10V(LimitedPower)
0to20mA(LimitedPower)
Data word format, ful l range 0 to +32767
Date word format, full scale 0 to +32000
Resolution, full range 12 bits
LSB v alue
Voltage
Current
2.44 mV
4.88 µA
Isolation none
Accuracy
Worst case, 0° to 55° C
Voltage output
Current output
Typical 25° C
Voltage output
Current output
± 2% of full-scale
± 3% of full-scale
± 1% of full-scale
± 1% of full-scale
Settling time
Voltage output
Current output
< 50 µS
< 100 µS
Maximum output drive
Voltage output
Current output
≥ 5000 Ω minimum
≤ 500 Ω maximum