Omron E5AR-T User Manual page 15

Section 7 Modbus Communications
XIV
6.2 Frames ....................................................................................................... 6-4
Command Frames .............................................................................. 6-4
Response Frames ............................................................................... 6-5
6.3 FINS-mini Text ............................................................................................ 6-6
6.4 Variable Areas ............................................................................................ 6-7
Variable Types .................................................................................... 6-7
Addresses ........................................................................................... 6-8
Number of Elements ........................................................................... 6-9
Set Values ........................................................................................... 6-9
6.5 Read from Variable Area .......................................................................... 6-10
6.6 Write to Variable Area .............................................................................. 6-11
6.7 Operation Commands .............................................................................. 6-13
6.8 Setting Areas ............................................................................................ 6-15
6.9 Commands and Responses ..................................................................... 6-17
Reading Monitor Values .................................................................... 6-17
Reading Set Values .......................................................................... 6-18
Composite Read from Variable Area ................................................ 6-19
Writing Set Values in Protect Level .................................................. 6-21
Writing Set Values ........................................................................... 6-21
Set Value Compound Write .............................................................. 6-23
Composite Read Registration ........................................................... 6-24
Composite Read Registration Confirmation ...................................... 6-25
Composite Registration Read ........................................................... 6-25
Communications Writing ................................................................... 6-26
Run/Reset ......................................................................................... 6-26
AT Execute ....................................................................................... 6-27
AT Cancel ......................................................................................... 6-28
Write Mode ........................................................................................ 6-28
Save RAM Data ................................................................................ 6-30
Software Reset ................................................................................. 6-30
Move to Setting Area 1 ..................................................................... 6-30
Move to Protect Level ....................................................................... 6-31
Auto/Manual ...................................................................................... 6-31
Parameter Initialization ..................................................................... 6-32
Alarm Latch Cancel ........................................................................... 6-33
SP Mode ........................................................................................... 6-33
Hold ................................................................................................... 6-34
Advance ............................................................................................ 6-35
Back .................................................................................................. 6-36
Controller Attribute Read .................................................................. 6-36
Controller Status Read ...................................................................... 6-38
Echoback Test .................................................................................. 6-39
6.10 Program Example .................................................................................... 6-40
N88Basic ........................................................................................... 6-40
7.1 Communications Method ........................................................................... 7-2
Modbus Communications ................................................................... 7-2
Communications Specifications .......................................................... 7-2
Transfer Protocol ................................................................................ 7-3
7.2 Frames ....................................................................................................... 7-4
Command Frames .............................................................................. 7-4
Response Frames ............................................................................... 7-5
7.3 List of Functions ......................................................................................... 7-7
7.4 Variable Areas ............................................................................................ 7-8