Specifications

Publication 1747-SG001E-EN-E - February 2013
30 Select SLC 500 I/O Modules
Counter I/O Modules
1746-HSCE High Speed Counter
This module offers a single bidirectional counting channel, which supports quadrature,
pulse/direction, or up/down counter input. Four on-board open collector outputs allow
module control independent of the SLC processor scan. The module features three
modes of operation: Range, Rate, and Sequencer.
1746-HSCE2 Multi-Channel High Speed Counter
The Multi-Channel High Speed Counter provides two sets of ±A, ±B, and ±Z input
channels, allowing up to two quadrature, differential line driver, or incremental encoders
to be monitored. A and B input channels can also be configured to count single-ended
pulse inputs from up to four input devices.
The module supports three operating modes that provide two, three, or four-channel
operation. System performance is enhanced with the module’s ability to accept control
adjustments while it is actively counting pulses. The Z/gate input channel can be used for
storing, holding, and resetting counter data.
1746-NR8 Resistance Input Specifications
Resistance 0.5 mA Excitation 0.25 mA Excitation Resolution Repeatability
Resistance
Range
Accuracy
(1)
Temperature
Drift
Resistance
Range
Accuracy
(1)
Temperature
Drift
150 Ω 0 Ω…150 Ω ±0.2 Ω ±0.004 Ω/°C
±0.002 Ω/°F
0 Ω…150 Ω ±0.15 Ω ±0.003 Ω/°C
±0.002 Ω/°F
0.01 Ω ±0.04 Ω
500 Ω 0 Ω…500 Ω ±0.5 Ω ±0.012 Ω/°C
±0.007 Ω/°F
0 Ω…500 Ω ±0.5 Ω ±0.012 Ω/°C
±0.007 Ω/°F
0.1 Ω ±0.2 Ω
1000 Ω 0 Ω…1000 Ω ±1.0 Ω ±0.025 Ω/°C
±0.014Ω/°F
0 Ω…1000 Ω ±1.0 Ω ±0.025 Ω/°C
±0.014 Ω/°F
0.1 Ω ±0.2 Ω
3000 Ω 0 Ω…1200 Ω ±1.5 Ω ±0.040
Ω/°C
±0.023 Ω/°F
0 Ω…1200 Ω ±1.5 Ω ±0.040 Ω/°C
±0.023 Ω/°F
0.1 Ω ±0.2 Ω
(1) The accuracy values assume that the module was calibrated within the specified temperature range of 0…60 °C (32…140 °F).
TIP
The 1747-ASB module is not compatible with the 1746-HSCE module.