Rockwell Automation 1760-xxxx Pico Controller User Manual - Manual (Page 198)

Publication 1760-UM001D-EN-P - September 2005
A-8 Specifications
High-Speed Counters
To the Digital Inputs No No No
To the Outputs Yes Yes Yes
Input Type dc voltage dc voltage dc voltage
Signal Range 0 to 10V dc 0 to 10V dc 0 to 10V dc
Analog Resolution 0.1V 0.1V 0.1V
Input Impedance 11.2K
Ω
11.2K
Ω
11.2K
Ω
Accuracy of
Two Pico Devices ±3% of actual value ±3% of actual value ±3% of actual value
Within a Single
Device (I7, I8) ±2% of actual value ±0.12V ±2% of actual value ±0.12V ±2% of actual value ±0.12V
Analog to Digital Conversion
Time Debounce ON: 20 ms
Debounce OFF: every cycle
Debounce ON: 20 ms
Debounce OFF: every cycle
Debounce ON: 20 ms
Debounce OFF: every cycle
Input Current < 1 mA < 1 mA < 1 mA
Cable Length (shielded) 30m (98 ft) 30m (98 ft) 30m (98 ft)
(1) Delay times for expansion modules are circuit delays only. Additional time is needed to transfer the status to the controller. See Table on page 9-2.
Specification 1760-L12DWD
1760-L12DWD-ND
1760-L18DWD-EX
1760-L18DWD-EXND 1760-L12BBB
1760-L12BBB-ND
1760-L12BWB
1760-L12BWB-NC
1760-L12BWB-ND 1760-L18BWB-EX
1760-L18BWB-EXND
1760-L20BBB-EX
1760-L20BBB-EXND
1760-IB12XOB8
(1)
1760-IB1212XOW6I
High-Speed Counter Inputs, I1 to I4 1760-L12BBB, 1760-L12BBB-ND
1760-L12BWB, 1760-L12BWB-NC
1760-L12BWB-ND, 1760-L12DWD
1760-L12DWD-ND
1760-L18BWB-EX, 1760-L18BWB-EXND
1760-L18DWD-EX, 1760-L18DWD-EXND
1760-L20BBB-EX, 1760-L20BBB-EXND
Number 4
Cable Length (shielded) 20 m
High Speed Up and Down Counters
Counting Frequency <1 kHz
Pulse Shape Square Wave
Mark-to-Space Ratio 1:1
Frequency Counters