Yokogawa Model ALF111 ALF111-S00 Foundation Fieldbus Communication

Yokogawa Model ALF111 Foundation Fieldbus Communication Module (for FIO)

 GENERAL

This document describes the hardware specifications of the ALF111 Foundation Fieldbus communication module  which is to be installed in Node Unit for ESB Bus (ANB10S or ANB10D)  Node Unit for ER Bus (ANR10S or ANR10D)  Compact Field Control Unit (for FIO) (AFF50S or AFF50D) (*1) and Compact Field Control Unit (for Vnet/IP  for FIO) (AFV10S or AFV10D) (*2) when used.

*1: Supported by R3.04 or later

*2: Supported by R3.05 or later

 STANDARD SPECIFICATIONS

 ALF111 Module

An ALF111 works as the Link Active Scheduler (LAS) of FOUNDATION fieldbus (H1) and transfers data from/to field devices for FOUNDATION fieldbus.

Interfaces

FOUNDATION fieldbus (Low speed Voltage Mode) 4 ports (one port is connected to one segment)

Transmission Speed

31.25 kbps

Function

LAS (needs to be prepared a MTL5995 (fieldbus power supply)).

Specifications for Fieldbus Device Connections

See General Specifications - Model LFS2610

Foundation Fieldbus Communication Package (for ALF111)  GS 33Q03L60-31E.

Current consumption

0.5 A or less

Withstanding Voltage

Field-to-system: 1500 V AC for 1 minute

Bus Connections (external connections)

Can be chosen from the followings:

• Pressure clamp terminals (removable terminal block with built-in terminators that can be switched on/off)

• Connecting to a terminal board using AKB336 (the YCB138 terminators are mounted on the terminal board).

Installation

To be installed in an ANB10S  ANB10D  ANR10S ANR10D  AFF50S  AFF50D  AFV10S or AFV10D nest.

Weight

0.4 kg

 Installation Restrictions

Number of ALF111s per FCS:

Standard Field Control Station : Max. 16 (*1) (8 pairs for a dual-redundant configuration) / FCS (*2)

Enhanced Field Control Station : Max. 32 (*3) (16 pairs for a dual-redundant configuration) / FCS (*4)

Compact Field Control Unit : Max. 30 (15 pairs for a dual-redundant configuration) / FCS (*5)

Compact Field Control Unit (for Vnet/IP  for FIO) : Max. 32 (16 pairs for a dual-redundant configuration) / FCS (*6)

Number of ALF111s per system of EB401: Max. 8 / remote system (*7)

Number of ALF111s per node: Max. 8 / node

*1: The maximum number of ALF111 may be two depending on the database type selected as the FCS database. For details  refer to GS  “Control Function for Standard Field Control Station (for FIO) (GS 33Q03K30-31E).”

*2: AFS30S  AFS30D  AFS40S  AFS40D

*3: The maximum number of ALF111 may be 16 depending on the database type selected as the FCS database. For details  refer to GS  “Control Function for Enhanced Field Control Station (for FIO) (GS 33Q03K31-31E).”

*4: AFG30S  AFG30D  AFG40S  AFG40D  AFG81S  AFG81D  AFG82S  AFG82D  AFG83S  AFG83D  AFG84S  AFG84D

*5: AFF50S  AFF50D

*6: AFV10S  AFV10D

*7: Number of ALE111  ALR111  ALR121  ALF111 and ALP111 : Max. 8 / remote system

ALF111 ALF111-S00   ALF111-S01 ALF111-S00/F9S00 ALF111-S01/F9S00

ALP111 ALP111-S00 ALP111-S01

ALR111 ALR111-S00 ALR111-S01

ALR121 ALR121-S00 ALR121-S01

ALE111 ALE111-S00 ALE111-S01