Omron 3G3AX-MX2-PRT-E, User Manual

Page: 96 / 116

82
Modbus Message Area
APPENDIX C
C-7 Modbus Message Area
4 Output Terminal 15 0: OFF
1: ON
5 Alarm Relay Output Terminal 0: OFF
1: ON
Table C-6 Ext1 digital output reg for RX
Bit
Digital Outputs
Name Description
Table C-7 Conventional modbus mailbox
Byte Offset Output Area Input Area
Ext.
Data 1
Ext.
Data 2
Bit Definitions Bit Definitions
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
+16 +4
Instr
u
ction
FUNC
Resul
t
FUNC
+17 +5 REG REG
+18 +6
+19 +7 SIZE SIZE
+20 +8
Data
WORD1
Data
WORD1
+21 +9
+22 - WORD2 WORD2
+23 -
+24 - WORD3 WORD3
+25 -
+26 - WORD4 WORD4
+27 -
+30 +10
Ctr
l
(Reserved)
Stat
(Reserved)
+31 +11 HS (Unused) CL HS STATUS COUNTER -
FUNC Command function code (Output Area):
03h
: Read
10h
: Write
Response function code (Input Area):
03h
: Read success
10h
: Write success
83h
: Read error
90h
: Write error
00h
: Waiting for response
REG Modbus register address start
SIZE Size of data (Number or words read / write)
2
: 1 word
6
: 3 words (Ext. Data 1 only)
4
: 2 words (Ext. Data 1 only)
8
: 4 words (Ext. Data 1 only)
HS Handshake bit (Output Area):
Toggle
0
➞
1
or
1
➞
0
to trigger execution of instruction
Handshake bit (Input Area):
Toggles
0
➞
1
or
1
➞
0
every time an instruction has been triggered
CLR Clear status
0
: Normal operation
1
: Clear HS, STATUS and COUNTER to 0
STATUS Instruction status
00b
: Idle
10b
: Waiting for Inverter response
01b
: Instruction sent to Inverter
11b
: Response received
COUNTER Status counter
4 bit counter that increments once every 64 ms
I111E-EN-02+3G3AX-MX2-RX-PRT+OperManual.book Seite 82 Donnerstag, 8. September 2011 11:53 11