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September 1, 2025 BY
IN ABB

ABB Measurement and Analyser AO2000-LS25 Laser Analyser Introduction

Introduction

As an integrated part of the Advance Optima series the LS25

can be combined with further analyzer modules and completely operated remotely in Ethernet networks.

The LS25 has ATEX, IECEx and CSA certificates for use in potentially explosive atmospheres.

The power supply unit converts 100-240 volts AC to 24 volts DC (24 volts DC can be supplied directly to the transmitter unit if available).

The power supply box is connected to the transmitter box by a cable. 4-20 mA input signal from external gas temperature/pressure sensor

can be connected to the screw terminals in the power supply box or directly to the cable connector on the transmitter unit.

The receiver electronics are connected to the transmitter electronics via a cable.

The absorbed signals detected from the photodetector are amplified and transmitted via this cable to the transmitter unit.

The same cable transmits the required power supply from the transmitter unit to the receiver unit.

The transmitter Al box contains the main electronic components.
August 29, 2025 BY
IN ABB

ABB DAPU100 3ASC25H204 Control board I/O

The ABB 3ASC25H204 DAPU100 Control Module is an essential component for industrial automation

systems.

It integrates advanced control logic and communication capabilities,

ensuring seamless integration with other components in your system.

Designed with precision engineering, this module delivers consistent and reliable

performance even under demanding industrial conditions.

Its robust design ensures longevity and minimal downtime,

making it a cost-effective solution for your automation needs.

The DAPU100 module supports a wide range of operating voltages,

including 220V, and has an output frequency of 3ASC25H204 kHz,

making it suitable for various industrial applications.

Its lightweight design (0.08 kg) ensures easy installation and maintenance.

This module is part of the ABB 3ASC25H204 series, known for its high-quality standards and reliability.

It is certified and tested to meet international quality standards, providing peace of mind for users.

With custom processing options available, the ABB 3ASC25H204 DAPU100 can be

tailored to specific project requirements, ensuring optimal performance and compatibility with existing

systems.
August 29, 2025 BY
IN ABB

ABB Measurement and Analyser AO2000-LS25 Laser Analyser Instrument Description

Instrument Description

The analyser consists of 3 separate units:

 Transmitter unit with decontamination

 Receiver unit with decontamination

 Power supply unit

The transmitter unit consists of the laser module, the temperature stabilised diode laser,

the collimating optics and the main electronics in a coated aluminium case.

The receiver unit contains a focusing lens, photodetector and receiver electronics in a coated aluminium case.

Both the transmitter and receiver have an environmental protection rating of IP66.

The standard optical window is pressure resistant up to 5 bar (absolute pressure).

The monitor is mounted by assembling the transmitter and receiver with the supplied

purge and calibration unit and mounting to a DN50 process flange (see Figure 3-1).

Optical alignment is both simple and reliable, and the purge device prevents dust

and other contaminants from being deposited on the optical window.
August 29, 2025 BY
IN ABB

ABB Measurement and Analyser AO2000-LS25 Laser Analyser detector signal

The detector signal is spectrally decomposed into harmonic frequency components of the laser modulation frequency.

The second harmonic of the signal is used to measure the concentration of the absorbed gas.

Both line amplitude and line width are Both line amplitude and line width are extracted from the second harmonic line shape.

Therefore the measured concentration is not sensitive to changes in the line shape (line amplitude and line width).

The measured concentration is not sensitive to line shape changes (line width and line width) caused by background gases.

Note: The analyser measures only the concentration of free molecules in a given gas and is therefore not 

sensitive to molecules bound to other molecules in complexes and molecules attached to or dissolved in particles and droplets.

Care should be taken when comparing results with those obtained by other measurement techniques.

The receiver unit contains a focusing lens, photodetector and receiver electronics in a coated aluminium case.

Both the transmitter and receiver have an environmental protection rating of IP66.

The standard optical window is pressure resistant up to 5 bar (absolute pressure).

The monitor is mounted by assembling the transmitter and receiver with the supplied

purge and calibration unit and mounting to a DN50 process flange (see Figure 3-1).

Optical alignment is both simple and reliable, and the purge device prevents dust

and other contaminants from being deposited on the optical window.
August 29, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA Profibus Interface Card Warranty

Related Products

SST has the following related ProfiBus products:

• 5136-PFB-104. a 104 version of the 5136-PFB-ISA

• 5136-PFB-VME, a VME version of the 5136-PFB-ISA, which uses

the same memory map

• 5136-PBMS, a Multi-slave ISA card, allowing 1 to 125 possible DP

slave stations to be emulated or monitored on one physical Profibus connection

• 5136-PFB-PCI, a PCI version of the 5136-PFB104

• 5136-PFB-STD, a STD-32 version of the 5136-PFB-ISA

Warranty

SST guarantees that all new products are free of defects in material and

workmanship when applied in the manner for which they were intended and

according to SST’s published information on proper installation.

The Warranty period for the 5136-PFB-ISA is 10 years from the date of shipment.

SST will repair or replace, at our option, all products returned freight prepaid

which prove, upon examination, to be within the Warranty definitions and time period.

The Warranty does not cover costs of installation, removal or damage to

user’s property or any contingent expenses or consequential damages.

Maximum liability of SST is the cost of the product(s).
August 29, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA Profibus Interface Card Related Products

Related Products

SST has the following related ProfiBus products:

• 5136-PFB-104. a 104 version of the 5136-PFB-ISA

• 5136-PFB-VME, a VME version of the 5136-PFB-ISA, which uses

the same memory map

• 5136-PBMS, a Multi-slave ISA card, allowing 1 to 125 possible DP

slave stations to be emulated or monitored on one physical Profibus connection

• 5136-PFB-PCI, a PCI version of the 5136-PFB104

• 5136-PFB-STD, a STD-32 version of the 5136-PFB-ISA

Reference Documents

For information on ProfiBus, refer to one of the following:

• ProfiBus standard DIN 19 245 parts 1. 2 and 3. Part 1 describes the

low level protocol and electrical characteristics, part 2 describes

FMS, part 3 describes DP

• European standard EN 50170

• ET 200 Distributed I/O System Manual, 6ES5 998-3ES22
August 29, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA Profibus Interface Card Reference Documents

Reference Documents

For information on ProfiBus, refer to one of the following:

• ProfiBus standard DIN 19 245 parts 1. 2 and 3. Part 1 describes the

low level protocol and electrical characteristics, part 2 describes

FMS, part 3 describes DP

• European standard EN 50170

• ET 200 Distributed I/O System Manual, 6ES5 998-3ES22

Related Products

SST has the following related ProfiBus products:

• 5136-PFB-104. a 104 version of the 5136-PFB-ISA

• 5136-PFB-VME, a VME version of the 5136-PFB-ISA, which uses

the same memory map

• 5136-PBMS, a Multi-slave ISA card, allowing 1 to 125 possible DP

slave stations to be emulated or monitored on one physical Profibus connection

• 5136-PFB-PCI, a PCI version of the 5136-PFB104

• 5136-PFB-STD, a STD-32 version of the 5136-PFB-ISA
August 29, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA Profibus Interface Card

The card has an onboard Intel i960 processor with 512 Kbytes of local RAM.

The card has an additional 256 Kbytes of RAM that is shared with the host in

16 Kbyte pages. The host determines which 16 Kbyte page of this shared

RAM is mapped into the host memory by writing to a register on the card.

This block of memory contains all the tables and buffers that are used to pass

information between the interface card and the application software running

in the host computer. This approach makes for a fast and simple connection

between host application and card software. The host computer uses the

loader program included on the distribution disk to load a software module

into card memory.

In addition, the card has 512 Kbytes of sectored flash memory, for storage of

programs and configuration data. The host computer uses the utility included

on the distribution disk to store a software module into flash memory.

ProfiBus configuration information may also be stored in flash.
August 29, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA Profibus Interface Card Overview

Card Overview

The 5136-PFB-ISA card can:

• act as a DP slave

• act as a DP master

• send and receive FDL (layer 2) messages

• send and receive FMS messages

The card supports simultaneous operation in all these modes.

The card supports the standard ProfiBus baud rates of 9.6K, 19.2K, 93.75K,

187.5K, 500K, 750K, 1.5M, 3M, 6M and 12M baud.

In addition, the card has 512 Kbytes of sectored flash memory, for storage of

programs and configuration data. The host computer uses the utility included

on the distribution disk to store a software module into flash memory.

ProfiBus configuration information may also be stored in flash.
August 29, 2025 BY
IN SST

SST Woodhead 5136-PFB-VME Profibus Interface Card VMEPROFI

Use this bootloader to access the card and download the software modules to the card via the serial port.

Loading the VMEPROFI Module into Shared Memory from the Host Computer

Use the following steps to load vmeprofi.ss1 into shared memory from the host computer

Load vmeprofi.ss1 into shared memory from the host:

1. Ensure that the board processor is in a reset state by setting the CpuReset bit in the board control registers to 1.

2. Set the standard memory address using the address bits in the Memory Control Register and the Interrupt Control Register.

3. select the addressing mode (linear or paging) and enable the board memory. 4.

4. if using interrupts, initialize the interrupt ID register and enable interrupts in the interrupt control register.

5. copy vmeprofi.ss1 to shared memory on the card. In linear mode, copy the module starting at offset 0 only.

In paged mode, copy one 16 Kbyte module at a time and change pages as needed.

6. Write the shared memory initial boot record. In linear addressing mode, write base address + 3FF30h.

In paged mode, set the page register to FFh and write the IBR to base address + 3F30h.

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