- IO Modules
- Protocol Converter
- PLC
- Industrial Switch
CT-1218 Digital Input 8DI 24VDC PNP
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Min. Cycle Time8 Channels
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ExpansionPNP
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Warranty24VDC
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ServiceCounter Frequency<200Hz
PRODUCT DESCRIPTION
Key Technical Features
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Flexible Multi-Channel Input Support
8-channel 24VDC digital input supports sink/PNP sensors, dry contact or active signals, and 2-/3-wire sensors, ensuring broad compatibility with field devices.
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High Reliability with Isolation and Signal Control
Opto-isolated inputs, configurable signal filtering, and adjustable holding time enhance noise immunity, signal stability, and system reliability.
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Advanced Counting and Configuration Capability
Each channel features independent 32-bit counters (<200Hz), configurable modes, directions, and transmission order, enabling precise counting and flexible industrial applications.
Technical Specifications
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General Parameters |
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Power Consumption |
Max.33mA@5.0VDC |
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Isolation |
I/O to internal bus: opto-couple isolation (3KVrms) |
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Field Power |
Nominal:24VDC, Range: 19.2~28.8VDC |
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Wiring |
Max.: AWG 18 |
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Installation |
35mm DIN-Rail |
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Size |
115*14*75mm |
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Weight |
65g |
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Environment Specification |
|
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Operating Temperature of |
-35℃~60℃ |
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Operating Temperature of |
-35℃~70℃ |
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Relative Humidity |
5~ 95%RH (No Condensation) |
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Storage Temperature |
-40℃~85℃ |
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Storage Humidity |
5~ 95%RH (No Condensation) |
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Manufacturing Test |
-40℃~75℃ |
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Ingress Protection Rating |
IP20 |
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Input Parameters |
|
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Channel Number |
8 channel sink input |
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LED Indicator |
8 channel input LED indicator |
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Turn-on voltage |
Min. 10VDC to Max.28VDC |
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Turn-off Voltage |
Max.5VDC |
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Turn-on current |
Max. 5mA/channel@28V |
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Input impedance |
>7.5kΩ |
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Input delay |
OFF to ON: Max.3ms |
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Filter time |
Default 10ms |
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Sample frequency |
500Hz |
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Counter frequency |
<200Hz |
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Effective pulse width for counting |
2.5ms |
A:24VDC, high-level active, PNP input, supports counting function up to 200Hz.
A:Suitable for mechanical switch signal acquisition, counting, and high-speed pulse input.
Ideal for industries requiring high-speed, cost-effective distributed I/O:


Automotive Industry











