Yokogawa EJA115 User Manual
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CONTENTS
IM 01C22T02-01E
FD No. IM 01C22T02-01E
10th Edition: Oct. 2008(YK)
All Rights Reserved, Copyright © 1998, Yokogawa Electric Corporation
CONTENTS
For Safe Use of Product ..................................................................... 1-1
ATEX Documentation .......................................................................... 1-3
Installation of an Explosion-Protected Instrument .............................. 2-1
2.1.1 FM approval ................................................................................... 2-1
2.1.2 CSA Certification ........................................................................... 2-5
2.1.3 CENELEC ATEX (KEMA) Certification ......................................... 2-5
2.1.4 IECEx Certification ........................................................................ 2-9
Internal Structure of EJA ..................................................................... 3-1
System/network Management VFD ............................................. 3-1
Function Block VFD ..................................................................... 3-1
Logical Structure of Each Block .......................................................... 3-1
Wiring System Configuration .............................................................. 3-1
Connection of Devices ........................................................................ 4-1
Reading the Parameters ..................................................................... 4-3
Continuous Record of Values ............................................................. 4-4
Generation of Alarm ............................................................................ 4-4
Definition of Combining Function Blocks ............................................ 5-2
Setting of Tags and Addresses .......................................................... 5-3
Communication Setting ....................................................................... 5-4
VCR Setting .................................................................................. 5-4
Function Block Execution Control ................................................ 5-5
Link Object ................................................................................... 5-5
Trend Object ................................................................................. 5-6
View Object .................................................................................. 5-6
Function Block Parameters .......................................................... 5-8
Transducer Block Parameters ...................................................... 5-9