Yokogawa EJX930A - Manual (Page 2)

i
IM 01C25R05-01EN
EJX910A and EJX930A
Multivariable Transmitter
Modbus Communication Type
IM 01C25R05-01EN 1st Edition
1st Edition: Nov. 2013 (YK)
All Rights Reserved, Copyright © 2013, Yokogawa Electric Corporation
Contents
1. Introduction ............................................................................................... 1-1
 Regarding This Manual ....................................................................................1-1
1.1 Safe Use of This Product .................................................................................1-1
1.2 Warranty .............................................................................................................1-2
1.3 ATEX Documentation .......................................................................................1-3
2. Connection ................................................................................................ 2-1
2.1 Connection with the Modbus Host .................................................................2-1
2.1.1
The Hardware Switch ........................................................................2-1
2.1.2 Wiring .................................................................................................2-2
2.2 Integral Indicator Display When Powering On ..............................................2-3
2.3 Set the parameters using DTM ........................................................................2-4
3. Parameter Setting ..................................................................................... 3-1
3.1 Menu Tree ..........................................................................................................3-1
3.2 Communication Setup ......................................................................................3-6
3.3 Basic Setup ........................................................................................................3-7
3.3.1
Tag and Device Information ...............................................................3-7
3.3.2 Process Variables .............................................................................3-7
3.3.3 Measuring Range ..............................................................................3-7
3.3.4 Units ...................................................................................................3-8
3.3.5 Damping Time Constant Setup ..........................................................3-8
3.3.6 Differential Pressure Signal Low Cut Mode Setup ............................3-8
3.3.7 Impulse Line Connection Orientation Setup ......................................3-8
3.4 Detailed Setup ...................................................................................................3-9
3.4.1
Static Pressure Setup ........................................................................3-9
3.4.2 External Temperature Fixation Mode .................................................3-9
3.4.3 Integral Indicator Setup ......................................................................3-9
3.4.4 Sensor Trim ...................................................................................... 3-11
3.4.5 External Switch Mode ......................................................................3-12
3.4.6 Software Write Protection ................................................................3-13
3.4.7 Alarm ................................................................................................3-13
3.4.8 Simulation and Squawk ...................................................................3-14