Month: August 2025

The NTDI02 Digital I/O Termination Unit is a Harmony rack

I/O device that is part of the Symphony Enterprise Manage

ment and Control System. It provides a signal path between

field I/O signals and the following I/O modules.

• Analog output module (IMASO11).

• Digital input module (IMDSI13. IMDSI14. and IMDSI22).

• Pulse input module (IMDSM04).

• Digital output module (IMDSO14 and IMDSO15).

• Frequency counter module (IMFCS01).

The NTDI02 is not a direct replacement for the NTDI01; how

ever, it is a functional replacement for the NTDI01.

This instruction explains the NTDI02 termination unit specifi

cations and operation. It details the procedures necessary to

complete setup, installation, maintenance, repair, and replace

ment of the termination unit.

NOTE: The NTDI02 termination unit is fully compatible with existing INFI 90®

OPEN and Symphony™ Enterprise Management Systems.

Features and benefits

• 16 channels for 24 V d.c. inputs with current sinking

• 2 isolated groups of 8 with voltage supervision

• Input status indicators

The input voltage range is 18 to 30 volt dc and the input current

source is 6 mA at 24 V. The inputs are divided into two individualy

isolated groups with eight channels and one voltage supervision

input in each group. Every input channel consists of current limiting

components, EMC protection components, input state indication

LED and optical isolation barrier. The process voltage supervision

input give channel error signals if the voltage disappears. The error

signal can be read through the ModuleBus.

This module has 16 digital inputs. The input voltage range is 18 to 30

volt d.c. and the input current is 6 mA at 24 V. The inputs are divided

into two individualy isolated groups with eight channels and one

voltage supervision input in each group. Every input channel

consists of current limiting components, EMC protection

components, input state indication LED and optical isolation barrier.

The process voltage supervision input give channel error signals if

the voltage disappears. The error signal can be read via the

ModuleBus.

Features and benefits

• 16 channels for 24 V d.c. inputs with current sinking

• Two isolated groups of 8 with voltage supervision

• Input status indicators

The DI803 is an 8 channel 230 V a.c./d.c.digital input module for the

S800 I/O. This module has 8 digital inputs. The a.c. input voltage

range is 164 – 264 volt and the input current is 7.6 mA at 230 V a.c.

The d.c. input range is 175 – 275 V and the input current is 1.6 mA at

220 V. The inputs are individualy isolated. Every input channel

consists of current limiting components, EMC protection

components, input state indication LED and optical isolation barrier.

Features and benefits

• 8 channels for 230 V a.c./d.c. inputs with current sinking

• Individualy isolated channels

• Voltage supervision of field input power

• Input status indicators

• Signal filtering

• Process connection via detachable connectors

The DO801 is a 16 channel 24 V digital output module for the S800

I/O. The output voltage range is 10 to 30 volt and the maximum

continuous output current is 0.5 A. The outputs are protected

against short circuits, over voltage and over temperature.

The outputs are in one isolated group. Each output channel consists of a

short circuit and over temperature protected high side driver, EMC

protection components, inductive load suppression, output state

indication LED and optical isolation barrier.

Features and benefits

• 16 channels for 24 V d.c. current sourcing outputs

• 1 isolated groups of 16 channels

• Output status indicators

• OSP sets outputs to predetermined state upon communication error

• Short-circuit protection to ground and 30 V

• Over-voltage and overtemperature protection

• Process and power connection via detachable connectors

The DO802 is an 8 channel 110 V d.c./250 V a.c. relay (NO) output

module for the S800 I/O. The maximum voltage range is 250 V and

the maximum continuous output current is 2 A. Al outputs are

individualy isolated. Each output channel consists of optical

isolation barrier, output state indication LED, relay driver, relay and

EMC protection components.

The relay supply voltage supervision, derived from the 24 V

distributed on the ModuleBus, gives a channel signal error and a

module warning signal if the voltage disappears. The error signal and

warning signal can be read through the ModuleBus. This supervision

can be enabled/disabled with a parameter.

Features and benefits

• 8 channels for 110 V d.c. / 250 V a.c. relay Normaly Open (NO) outputs

• 8 isolated channels

• Process connection via detachable connectors

Overview:

The ABB DO630 is a robust 16-channel digital output module designed

for reliable control of various industrial applications.

Offering isolated outputs and compatibility with 250VAC, 

it delivers precise and safe switching capabilities.

Key Features:

16 Isolated Channels: Control up to 16 independent loads with individual channel isolation,

minimizing potential interference and enhancing system stability.

250VAC Compatibility: Handle a wide range of AC loads with a maximum voltage rating of 250VAC,

ensuring versatility in diverse industrial settings.

Relay Contacts: Utilize reliable relay contacts for direct switching of actuators,

valves, and other industrial equipment.

Compact Design: Optimize space within control cabinets with the module’s compact footprint, maximizing efficiency.

Technical Specifications:

Channel Type: Digital Output (DO)

Number of Channels: 16

Voltage Rating: 250VAC

Output Type: Relay Contacts

Applications:

Factory automation

Process control

Building automation

Machine control

Lighting control

Features and benefits

• 16 channels for 24 V d.c. current sourcing outputs

• 2 isolated groups of 8 channels with process voltage supervision

• Output status indicators

• OSP sets outputs to predetermined state upon error detection

• Short-circuit protection to ground and 30 V

• Over-voltage and over-temperature protection

This module has 16 digital outputs. The output voltage range is 10 to

30 volt and the maximum continuous output current is 0.5 A. The

outputs are protected against short circuits, over voltage and over

temperature. The outputs are divided into two individualy isolated

groups with eight output channels and one voltage supervision

input in each group. Each output channel consists of a short circuit

and over temperature protected high side driver, EMC protection

components, inductive load suppression, output state indication

LED and optical isolation barrier.

This module has 16 digital outputs. The output voltage range is 10 to

30 volt and the maximum continuous output current is 0.5 A. The

outputs are protected against short circuits, over voltage and over

temperature. The outputs are divided into two individualy isolated

groups with eight output channels and one voltage supervision

input in each group. Each output channel consists of a short circuit

and over temperature protected high side driver, EMC protection

components, inductive load suppression, output state indication

LED and optical isolation barrier.

The process voltage supervision input give channel error signals if

the voltage disappears. The error signal can be read through the

ModuleBus. The outputs are current limited and protected against

over temperature. If the outputs are overloaded the output current

wi l be limited.

The DO820 is an 8 channel 230 V a.c./d.c. relay (NO) output module

for the S800 I/O. The maximum output voltage is 250 V a.c./d.c. and

the maximum continuous output current is 3 A. Al outputs are

individualy isolated. Each output channel consists of optical

isolation barrier, output state indication LED, relay driver, relay and

EMC protection components. The relay supply voltage supervision,

derived from the 24 V distributed on the ModuleBus, gives an error

signal if the voltage disappears, and the Warning LED turns on. The

error signal can be read through the ModuleBus. This supervision can

be enabled/disabled with a parameter.

Features and benefits

• 8 channels for 230 V a.c./d.c. relay Normal Open (NO) outputs

• 8 isolated channels

• Output status indicators

• OSP sets outputs to predetermined state upon error detection