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Month: December 2025

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December 4, 2025 BY
IN ABB

ABB The LS25 has ATEX, IECEx and CSA certificates

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.

The central processor board performs all instrument control and gas concentration calculations.

The main board contains all the electronics required for the operation of the instrument,

such as the diode laser current and temperature control as well as the analogue to digital signal

conversion.

The display (LCD) continuously shows the gas concentration, laser beam transmission and instrument

status.

an RS-232 port is available for direct serial communication with a PC.

An optional Ethernet board provides TCP/IP communication over a local area network (LAN) as an

alternative to serial communication.

All cable connectors are Phoenix VARIOSUB type and are waterproof.
December 4, 2025 BY
IN ABB

ABBAO2000-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.
December 4, 2025 BY
IN ABB

ABB Measurement and Analyser AO2000-LS25

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.
December 4, 2025 BY
IN SST

SST has the following related ProfiBus 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

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).
December 4, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA 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
December 4, 2025 BY
IN SST

SST Woodhead 5136-PFB-ISA Profibus Interface Card

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.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.
December 4, 2025 BY
IN SST

SST The 5136-PFB-VME provides 8-bit access to objects

Startup Card

Before using the 5136-PFB-VME card on ProfiBus, download the PFBPROFI software module to the card and configure and run the software module.

Download the software module to shared memory from the host computer, or download it to flash memory using the serial CONFIG port on the card.

The shared memory module is called vmeprofi.ss1. The module in flash memory is called vmeprofi.ssf.

To run the software module, load the appropriate initial boot record (IBR, see Section 2.7.3. Initial Boot Record) to the card.

There are two IBRs, one for running the module from flash memory and one for running the module from shared memory.

It is possible to install one module in flash memory and another in shared memory and run one or the other depending on the IBR used.

When the card is first received, the only software on the card is a short bootloader program in flash memory.

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.
December 4, 2025 BY
IN SST

SST Woodhead 5136-PFB-VME Profibus Interface Card

Access rights

The 5136-PFB-VME provides 8-bit access to objects in the short address space and 8-bit and 16-bit access to objects in the standard address space.

The VME master selects whether a particular bus cycle accesses the short address space,

the standard address space, or the long address space (extended address space) by using the address modifier code,

Extended Address Space, Standard Address Space, Extended Address Space, or Long Address Space

(Extended Address Space and Long Address Space are not used by the 5136-PFB-VME) for a particular bus cycle, as well as the type of access.

The card decodes these address modifier codes and determines the object to be accessed.

In addition to selecting one of the four available spaces on the VME bus, the address modifier code selects

– Whether the master is performing supervised or unprivileged accesses

– Whether the access is to program space or data space (all accesses except short address space)

– Whether it is a single object access or a block access

The 5136-PFB-VME can respond to address modifier codes 3Dh, 39h, 2Dh, and 29h.

Regulatory or unprivileged data accesses can be made to the standard address space (3Dh and 39h, respectively).

Supervised or unprivileged access to the short address space (2Dh and 29h, respectively) is available.

Accessing the board with an unsupported address modifier code results in a VMEbus error.

Bit 7 of the board DIP switch is used to select whether to allow supervisory access only, or both supervisory and unprivileged access.
December 3, 2025 BY
IN ABB

ABB TZIDC-200 Switching points for the position

Switching points for the position

You can use these parameters to define two position limits for

signaling (see option “Module for digital position feedback”).

Digital output

The alarms generated in the positioner can be polled via the

digital output as a collective alarm.

The desired information can be selected via the operator panel

or remotely via the configuration program.

The output can be set to “active high” or “active low”, as

required.

Digital input

For the digital input, one of the following safety options can be

selected. You may use the operator’s panel or configuration

program to select an option.

— No function (default)

— Move to 0 % position

— Move to 100 % position

— Hold previous position

— Disable local configuration

— Disable local configuration and operation

— Disable any access (no local or remote access via a PC)

The selected function is activated when the 24 V signal is no

longer connected to the digital input (< 11 V DC).
December 3, 2025 BY
IN ABB

ABB TZIDC-200 Digital Positioner Shut-off function

Shut-off function

This parameter can be set separately for each end position.

When the respective configured limit value is exceeded, the

shut-off function causes immediate travel of the actuator until

reaching the set end position.

If the value “0” is entered for the corresponding parameter, the

position is further controlled, even in the respective end

position.

Travel time prolongation

This function can be used to increase the max. travel time for

full travel. This time parameter can be set separately for each

direction.

This function can only be used with the pneumatics with the

safety function “fail-safe”.

Switching points for the position

You can use these parameters to define two position limits for

signaling (see option “Module for digital position feedback”).

Digital output

The alarms generated in the positioner can be polled via the

digital output as a collective alarm.

The desired information can be selected via the operator panel

or remotely via the configuration program.

The output can be set to “active high” or “active low”, as

required.

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