Description
Yokogawa ADV157-S00 Digital Input Module
Configured for discrete signal acquisition in distributed control I/O subsystems, the Yokogawa ADV157-S00 (ADV157 Input Module) provides direct physical/electrical execution of 32-channel 24 VDC status monitoring across Yokogawa field I/O architectures. The module processes sink/source digital inputs for ON/OFF state detection within cabinet-level automation backplane environments.
Suffix Breakdown & Model Matrix
Hardware Specifications
| Parameter |
Specification |
| Model / Brand |
ADV157-S00 / Yokogawa |
| Origin |
Japan |
| Weight |
0.4 kg |
| PowerConsumption |
350 mA @ 5 VDC |
| Number of Input Channels |
32 channels |
| Rated Input Voltage |
24 VDC (sink/source) |
| Input ON Voltage |
18 to 26.4 VDC |
| Input OFF Voltage |
5.0 VDC or less |
| Input Current |
4.1 mA +20% per channel |
| Maximum Allowable Voltage |
30 VDC |
| Insulation |
2 kVAC (input to system, 1 minute) |
| Backplane Isolation |
500 VAC between commons (16-channel grouping) |
| Response Time |
<= 8 ms (status input) |
Yokogawa Channel-Level Signal Conditioning Architecture
The ADV157-S00 implements channel-grouped isolation architecture typical of Yokogawa DCS remote I/O subsystems, where 16-channel common segmentation reduces cross-channel disturbance propagation under high-density digital field wiring. The input stage performs voltage threshold discrimination with defined ON/OFF hysteresis boundaries for 24 VDC field devices, supporting stable logic state acquisition in electrically noisy cabinet environments.
Frequently Asked Questions
Q: Can the ADV157-S00 be hot-swapped during system operation?
A: Hot-swap capability depends on the host I/O base unit and system configuration. The module itself does not define autonomous hot-swap behavior.
Q: Does each channel have independent electrical isolation?
A: Isolation is implemented in grouped form (common per 16 channels). It is not fully per-channel isolated architecture.
Q: What is the backplane power dependency?
A: The module requires 5 VDC backplane supply with a maximum consumption of 350 mA.
Field Installation Guidelines
-
Ensure all field wiring is rated for 30 VDC or higher insulation class.
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Maintain separation between input signal cables and power conductors to reduce inductive coupling.
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Apply correct common wiring segmentation according to 16-channel grouping structure.
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Verify terminal torque specifications according to Yokogawa base unit mechanical documentation.
-
Perform continuity and dry-contact simulation before energizing system backplane.
-
Ensure proper grounding of cabinet frame to minimize common-mode noise injection into input circuits.
