YokogawaProSafe-RS FIO

Yokogawa SDV144-S5C/B4S10 16-Channel 24 V DC Safety Digital Input Module

Name: Yokogawa SDV144-S5C/B4S10 16-Channel 24 V DC Safety Digital Input Module
Brand: YOKOGAWA
SKU: 2932024
Price: 1 USD
Availability: InStock

Product identity16 DI

Product identity

Product Summary

Yokogawa SDV144-S5C/B4S10 is a 16-channel 24 V DC contact-input module with module isolation for ProSafe-RS FIO. It interprets a field contact as ON at 1 kΩ or less and OFF at 100 kΩ or greater, using a nominal 6 mA input current from the external supply.

The S5C suffix of Yokogawa SDV144-S5C/B4S10 identifies the standard, non-explosion-protected pressure-clamp/MIL connection and the high-density -20 to +70 °C option. At the upper ambient range, the available input-channel count is restricted and must be reflected in the safety I/O layout.

Option /B4S10 on Yokogawa SDV144-S5C/B4S10 specifies the STB4S-10 surge-absorbing pressure-clamp terminal block for digital inputs. The module also supports field-wiring diagnostic elements, with SCB100 or SCB110 installed according to the normal state and diagnostic objective of each contact.

Yokogawa manual crop showing SDV144 external dimensions for pressure-clamp and cable-adapter forms

Technical record

Specification Details

Specification	SDV144-S5C/B4S10
Brand	Yokogawa
Product Name	16-Channel 24 V DC Safety Digital Input Module
Country	Japan
System family	ProSafe-RS / FIO
Input channels	16, module isolation
Input signal	No-voltage contact
ON resistance	1 kΩ maximum
OFF resistance	100 kΩ minimum
Input current	6 mA ±20 %
External power supply	24 V DC +20 % / -10 %; 200 mA capacity
Maximum input voltage	30.0 V DC
Input response time	40 ms maximum
Current consumption	290 mA at 5 V DC; 140 mA at 24 V DC maximum
Weight	Approx. 0.36 kg with pressure clamp/MIL cable
Connection option	/B4S10: STB4S-10 surge-absorbing input terminal block

Defined ON and OFF states

Contact Input Interpretation

SDV144 evaluates the resistance of the complete field loop, so switch condition, wiring resistance and diagnostic elements are considered together.

ON threshold

A closed loop must present 1 kΩ or less to the channel. Excess cable or contact resistance can leave a mechanically closed device outside the valid ON region.

OFF threshold

An open loop is recognized at 100 kΩ or greater. Leakage through suppression devices or wet wiring can keep the circuit below the valid OFF region.

Response timing

The specified 40 ms maximum input response is combined with application filtering and task execution when determining the overall safety reaction time.

Open and short detection

Field-Wiring Diagnostics

External diagnostic elements are selected from the normal contact state so the module can distinguish field wiring faults from legitimate process states.

Normally open circuits

SCB100 is connected in parallel with the field contact when the normal process state is OFF, supporting detection of a broken circuit while preserving state interpretation.

Normally closed circuits

SCB110 is installed in series with correct polarity when the normal process state is ON, allowing short-circuit diagnostic behavior to be evaluated.

Combined diagnostics

SCB100 and SCB110 can be used together for open- and short-circuit checking. Their resistance and polarity become part of the channel acceptance test.

Practical checks

Questions & Answers

Why does Yokogawa SDV144-S5C/B4S10 stay OFF with a closed field contact?

For Yokogawa SDV144-S5C/B4S10, measure the total loop resistance at the terminal block. The closed path must be 1 kΩ or less, including contact, cable and diagnostic-element resistance.

What can keep Yokogawa SDV144-S5C/B4S10 ON after the field contact opens?

Leakage or a parallel path can prevent Yokogawa SDV144-S5C/B4S10 from reaching the 100 kΩ OFF threshold. Inspect suppression devices, moisture, terminal contamination and the diagnostic-element connection.

When is SCB100 used with Yokogawa SDV144-S5C/B4S10?

Use SCB100 in parallel with the field contact on Yokogawa SDV144-S5C/B4S10 when the normal process state is OFF and open-circuit detection is required. Validate the resulting channel states.

Why does SCB110 polarity matter on Yokogawa SDV144-S5C/B4S10?

SCB110 is a series diagnostic element for normally ON circuits, and Yokogawa SDV144-S5C/B4S10 expects the documented red/blue orientation. Reversed polarity can invalidate the intended diagnostic response.

How does high-density installation affect Yokogawa SDV144-S5C/B4S10?

Yokogawa SDV144-S5C/B4S10 uses suffix C. All sixteen channels are available through the lower ambient range, but only twelve are permitted at the highest stated temperature; apply the official limit to the cabinet design.

What should be confirmed after fitting the /B4S10 option to Yokogawa SDV144-S5C/B4S10?

Verify that Yokogawa SDV144-S5C/B4S10 is connected through the STB4S-10 input terminal block, then test every channel for correct state, diagnostic behavior, surge path and terminal numbering.

Moore Automation

Service Support

Moore Automation

https://www.mvme.cn

Moore Automation provides enquiry support around exact automation-module identities, option codes and requested accessories. For safety I/O, the terminal-block option and full suffix are kept beside the module description.

The commercial record can also carry inspection photographs, packing requirements and delivery updates, helping customer teams compare the received channel module and termination hardware with the order.

Option-code verificationAccessory record pairingInspection-photo handlingDelivery communication

Mixed-brand selection

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Direct enquiry

Contact Details

CompanyMoore Automation

Sales ManagerLeonia

Emailsales@mvme.cn

WhatsApp+86 180 3017 5807

Product Name	Yokogawa SDV144-S5C/B4S10 16-Channel 24 V DC Safety Digital Input Module
Item NO.	2932024
Weight	0.1 kg = 0.2205 lb = 3.5274 oz
Category	YOKOGAWA
Brand	YOKOGAWA
Creation Time	2026-11-12

Yokogawa SDV144-S5C/B4S10 16-Channel 24 V DC Safety Digital Input Module Item NO.: 2932024

Yokogawa SDV144-S5C/B4S10 16-Channel 24 V DC Safety Digital Input Module

Product Summary

Specification Details

Contact Input Interpretation

ON threshold

OFF threshold

Response timing

Field-Wiring Diagnostics

Normally open circuits

Normally closed circuits

Combined diagnostics

Questions & Answers

Service Support

Moore Automation

Suggested Products

Contact Details

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