Yokogawa ADM11T-S1 CENTUM 16-Channel Contact Input Module

Availability: 10 left in stock

Yokogawa ADM11T Current Output Multi-Contact Input Module The Yokogawa ADM11T-S1, also cataloged as the Yokogawa ADM11T Current Output Multi-Contact Input...

SKU: ADM11T

Manufacturer: Yokogawa
Product No.: ADM11T
Product Type: Digital Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 440g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ADM11T Current Output Multi-Contact Input Module

The Yokogawa ADM11T-S1, also cataloged as the Yokogawa ADM11T Current Output Multi-Contact Input Module, operates as a dedicated hardware component for discrete state signal acquisition within CENTUM CS 3000 and CENTUM VP DCS platforms. The unit captures binary logic shifts from 16 independent field loops, translating contact transitions from field-located limit switches, pushbuttons, and relays into system bus registers. By employing direct optical barriers, the layout establishes discrete galvanic isolation to prevent exterior line perturbations from entering the internal processor backplane matrix.

Hardware Specifications

Parameter	Specification
Model	ADM11T-S1
Brand	Yokogawa
Origin	USA
Weight	0.44 kg (0.65 lbs)
Dimensions	125 x 130 x 248 mm
Operating Temp	-10 to +60 deg C
Power Consumption	Power Dissipation: ~1.3 W (Current Consumption: Less than or equal to 600 mA @ 5 V DC)
Number of Channels	16 independent input channels
Signal Input Type	Dry contact / Wet contact (24 V DC nominal)
Voltage Range Limits	19.2 to 28.8 V DC
On-State Threshold	Less than or equal to 200 Ohm or Greater than or equal to 19 V DC
Off-State Threshold	Greater than or equal to 100 kOhm or Less than or equal to 9 V DC
Isolation Voltage	1500 Vrms between channels and system backplane
Terminal Connection	Removable 20-pin screw block

4-20 mA HART Loop Protocol and Channel-to-Channel Isolation

The module architecture functions concurrently alongside 4-20 mA HART loop protocol elements within the shared FIO rack framework. An isolation ceiling of 1500 Vrms decouples the 16 contact input circuits from the internal bus data lines, minimizing noise coupling from inductive field equipment. Hardware-level line filtering attenuates transient voltage spikes shorter than 1 ms, while internal capacitors provide state retention for up to 12 ms during localized power fluctuations. This filtering process guarantees that signal integrity is sustained across high-density nodes, shielding the primary control logic from signal degradation caused by neighboring high-power switching cables.

Frequently Asked Questions

Q: How does the module handle redundancy initialization within safety-critical loops?

A: The hardware supports dual-redundant pairing on compatible system baseplates. The secondary module mirrors the register states continuously, ensuring that if the active channel registers a hardware fault, the backup module assumes signal tracking without interrupting the control logic sequence.

Q: What are the parameters for connecting dry vs wet contacts to the terminal block?

A: The internal circuit design accommodates both configurations. Wet contact operation requires an external 24 V DC loop voltage source within the 19.2 to 28.8 V DC boundary, while dry contact loops utilize the internal wetting current driven through the removable 20-pin interface.

Field Installation Guidelines

Mount the input module vertically into the allocated chassis slot of the FIO baseplate, ensuring the locking tabs lock into position against the chassis track. Terminate all sensor and contact cables using the removable 20-pin screw terminal block, matching wire cross-sections between 0.2 and 2.5 mm squared to prevent pin contact resistance. Route the field cabling through dedicated low-voltage wire trays, maintaining a separation distance of at least 30 cm from parallel high-power AC lines to suppress cross-talk. Connect the terminal block chassis grounding lug directly to the single-point instrument earth bus bar to provide a low-impedance path for the integrated line shields.

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