Confirmation By Status Information (Coupler Status) - Mitsubishi Electric NZ2FTGN User Manual

Confirmation by status information (Coupler status)

This section describes troubleshooting with status information (Coupler status) of the NZ2FT-MT.
For details on how to read devices from the master station, refer to the following.
• When the master station is the RJ71EN71: Simple CPU communication function ( MELSEC iQ-R Ethernet User's
Manual (Application))
• When the master station is the QJ71MT91: Automatic communication function ( MODBUS/TCP Interface Module
User's Manual (Details))
Data structure
The status information is stored in the NZ2FT-MT register.
Register address Item
100CH Coupler status
101CH to 101FH Collective process alarm message for
I/O modules
B000H to B7FFH Process alarms
Assignment of the master module to the buffer memory
Status information can be read into any address in the buffer memory read area.
Item
Read area
Ex.
When data is assigned from 1700H in the buffer memory
QJ71MT91
Buffer memory
1000H
·
1700H FDL address 1
FDL address 2
FDL address 20 (maximum)
19E4H
·
2000H
(1) Process alarm data is assigned to a read area in 32 words for each I/O module.
11 NZ2FT-MT
360
11.10 Troubleshooting
Description
Indicates the status of the NZ2FT-MT.
Indicates that Process alarm has occurred from the I/O module.
Process alarm data for each I/O module is stored in order of
mounting position proximity to the NZ2FT-MT.
Buffer memory address
1000H to 1FFFH
offset
n=0 Coupler status
n+1
·
n+5
Collective process alarm
message for I/O modules
n+9
offset
n=0
(1)
n+32
Description
Area for reading register address values of the NZ2FT-MT
NZ2FT-MT
Register
Coupler status
·
Collective process
alarm message for
I/O modules
·
Process alarms
Reference
Page 361 Coupler status
100CH
101CH
1020H
B000H
B800H