ADV551-P60/D5S00

The Yokogawa ADV551-P60/D5S00 is a 32-channel, 24 V DC isolated digital output module designed to generate transistor-based switching signals for field devices. It supports current-sink outputs, pulse-width output and time-proportional output functions. This configuration includes a front-panel status display and an ATD5S-00 pressure clamp terminal block for field wiring.

Functional Description

The ADV551 provides 32 discrete output channels for transmitting controller commands to field-side loads. Its current-sink output architecture switches the external 24 V DC field circuit, allowing the control system to operate compatible loads through individual transistor output stages.

The module supports both conventional status outputs and pulse-based control. Its pulse-width and time-proportional output functions allow the controller to represent a variable control demand through the duration or proportion of an output pulse.

Model Configuration

The complete ordering code identifies the module hardware and its terminal connection arrangement:

Code	Specification
ADV551	32-channel, 24 V DC isolated Digital Output Module
-P	With pulse-width output and time-proportional output functions
6	With status display; without explosion protection
0	Basic type
/D5S00	With ATD5S-00 pressure clamp terminal block for digital output

The /D5S00 option specifies the field wiring interface. It should not be confused with /D5A00, which specifies a different KS cable interface adapter.

Output Characteristics and Electrical Limits

The output channels use a 24 V DC current-sink configuration. The external field supply must remain within 20.4 to 26.4 V DC. Each channel supports a maximum load current of 100 mA at 26.4 V DC, while the specified load reference is 24 V DC at 50 mA.

The output ON voltage is limited to 2 V DC, and the maximum leakage current in the OFF state is 0.1 mA. These values are relevant when checking the switching thresholds and OFF-state behavior of connected field devices. When driving a DC relay, Yokogawa specifies the use of a diode.

Pulse Output and Channel Assignment

The ADV551 supports three output modes:

• Status Output (SO): Conventional ON/OFF switching controlled by the system.
• Pulse Width Output (PW): Generates a one-shot pulse with a configurable width.
• Time-Proportioning Output (TP): Controls the ON/OFF proportion over a defined time interval.

The pulse-width range is 8 ms to 7,200 s, with an 8 ms resolution. The specified response time is 3 ms or less for status outputs and 10 ms or less for mixed status and pulse outputs.

Pulse-width output requires two consecutive terminal numbers, with the first terminal being odd-numbered. The allocation of PW and TP functions must follow Yokogawa's channel assignment rules. In particular, the next terminal cannot be assigned a different function when an odd-numbered terminal is configured for PW.

Electrical Isolation and Field Wiring

The output signal circuits are isolated from the system side, with a specified withstand voltage of 2 kV AC for one minute. The output commons are arranged in common-minus groups of 16 channels, with a specified withstand voltage of 500 V AC between commons.

The /D5S00 configuration uses the ATD5S-00 pressure clamp terminal block. This provides the field wiring connection for the 32-channel output module. The terminal arrangement and common grouping should be considered when connecting loads that use different field power circuits.

Technical Specifications

Parameter	Specification
Model	ADV551-P60/D5S00
Brand	Yokogawa
Product Type	Digital Output Module
Number of Output Channels	32
Rated Applied Voltage	24 V DC
External Power Supply Voltage Range	20.4 to 26.4 V DC
External Power Supply Rating	24 V DC, 50 mA
Output Format	Current sink
Maximum Load Current	100 mA/channel at 26.4 V DC
Output ON Voltage	2 V DC maximum
OFF-State Leakage Current	0.1 mA maximum
Output Response Time	3 ms or less (status output); 10 ms or less (mixed status and pulse outputs)
Pulse Width Range	8 ms to 7,200 s
Pulse Width Resolution	8 ms, with an additional ON/OFF delay of up to 1 ms
Signal-to-System Withstand Voltage	2 kV AC for 1 minute
Withstand Voltage Between Commons	500 V AC for 1 minute
Common Configuration	Common-minus side every 16 channels
Maximum Current Consumption	700 mA at 5 V DC; 60 mA from external power supply
External Connection	ATD5S-00 pressure clamp terminal block
Module Weight	0.20 kg
Dimensions	107.5 x 32.8 x 130 mm

Frequently Asked Questions

Q: Does the ADV551-P60/D5S00 support pulse-width and time-proportioning outputs?

A: Yes. The -P suffix identifies the pulse-width and time-proportioning output functions. These modes can be assigned according to the module's channel configuration rules.

Q: What is the difference between the D5S00 and D5A00 options?

A: /D5S00 specifies the ATD5S-00 pressure clamp terminal block, whereas /D5A00 specifies the ATD5A-00 KS cable interface adapter. They represent different field connection arrangements.

Q: Can the module directly drive a DC relay?

A: The output can drive compatible DC relay loads within its specified voltage and current limits. Yokogawa specifies that a diode must be connected when driving a DC relay. Check the relay coil current against the 100 mA per-channel maximum.

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