YOKOGAWA Serial Communication Modules ALR121
2015-06-30 17:15:23
Description:
YOKOGAWA Serial Communication Modules ALR121 Models ALR111 and ALR121 Serial Communication Modules (for FIO) that a field control station (FCS) uses to perform serial communication with subsystems such as FA-M3. These serial communication modules can be mounted on field control units (AFV30, AFV40, AFV10, and AFF50), ESB bus node unit (ANB10), optical ESB bus node unit (ANB11), and ER bus node unit (ANR10).……
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▶ Pressure Transmitter EJA
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▶ Variable Area Flowmeters – Rotameters
▶ Device Smart Communicators
▶ PORTABLE AND HANDHELD INSTRUMENTS
▶ Distributed Control System (DCS)
▶ Process Analyzers
▶ Paperless Recorders
▶ Strip Chart Recorders
▶ Data Acquisition Equipment
▶ UT Series Temperature Controllers
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▶ UT100 Series Temperature Controllers
▶ UD Series Manual Setters
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Description
YOKOGAWA Serial Communication Modules ALR121
GENERAL
This document describes about Models ALR111 and ALR121 Serial Communication Modules (for FIO) that a field control station (FCS) uses to perform serial communication with subsystems such as FA-M3. These serial communication modules can be mounted on field control units (AFV30, AFV40, AFV10, and AFF50), ESB bus node unit (ANB10), optical ESB bus node unit (ANB11), and ER bus node unit (ANR10).
HARDWARE SPECIFICATIONS
The serial communication modules (ALR111 and ALR121) hardware specifications are as shown below.
Table Serial Communication Module Hardware Specifications
Item Specifications
Model ALR111 ALR121
Interface RS-232C RS-422/RS-485
Connection method Point-to-point Point-to-point (RS-422)
Multipoint (RS-485)
Communication function Half-duplex
Synchronization method Start-stop synchronization
Transmission speed 1200/2400/4800/9600/19200/38400 bps (*1)
Transmission code ASCII/binary
Character length 7/8 bits
Stop bit length 1/2 bits
Parity check None/even/odd
Lag time after data transmission 1 ms (The lag time to start receiving data again after data transmission.)
Transmission distance Maximum 15 m Maximum 1200 m (total extended length)
Installation method Mounted on ANB10, ANB11, ANR10, AFF50, AFV10, AFV30, or AFV40
I/O wiring AKB131, AKB132, AKB133, AKB134 cables, etc. Cable with 3-pair shield, AKB161, or AKB162
Wiring connection D-sub-9-pin (female x 2) Clamped with terminal block’s M4 screws
(5 poles x 2)
Current consumption 0.5A
Weight 0.3 kg 0.3 kg
*1: The applicable transmission speed depends on the communication function, subsystems, and connection method.
An FCS collects data from subsystems or sets data with control calculations to subsystems using the builder functions
by way of serial communication modules. A communication module selects only one communication function, thus
two ports must have identical communication functions. It is not possible to select different communication function
for every port. The communication functions and those transmission speeds for each communication module are as
shown in the table below.
MODEL AND SUFFIX CODES
Description
Model ALR121 Serial Communication Module (RS-422/RS-485, 2 port)
Suffix
Codes
-S Standard type
5 With no explosion protection
E With explosion protection
0 Basic type
1 With ISA Standard G3 option