Omron SYSMAC CJ1W-AD04U, Руководство по эксплуатации

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Exchanging Data with the CPU Unit Section 4-1
4-1 Exchanging Data with the CPU Unit
Outline of Data Exchange
Data is exchanged between the CPU Unit and the CJ1W-AD04U and CJ1W-
AD04U-SL Universal Input Units via the Special I/O Unit Area (for data used
to operate the Unit) and the Special I/O Unit words in the DM Area (for data
used for settings).
Operating Data
These CIO Area words contain the process values, alarm outputs, and flags
such as the Sensor Error Flags. The words in the CPU Unit’s Special I/O Unit
Area are allocated by unit number.
Unit Settings
These DM Area words contain various Unit settings. The words allocated to
the Unit in the DM Area are allocated by unit number.
The Unit settings are divided into the following 5 areas.
• Unit values read command
• Address of data range error
• Continuously refreshed area
• Initial settings area
• Expansion Setting Area settings
Special I/O Unit Area
Continuously Refreshed Area
Alarm settings
Zero adjustment value
Initial settings area
Temperature unit setting
Scaling
Expansion Setting Area
settings
Expansion Setting Area
Enable Bit
Expansion Setting Area
address
DM Area
m
100 words
10 words
CJ-series CPU Unit
CJ1W-AD04U/AD04U-SL
Universal Input Unit
I/O refresh
Power ON or Unit restart
Operating Data
Continuously Refreshed Area
(Process values, alarm outputs,
Sensor Error Flags, etc.)
Unit Settings
Unit values read command
Address of data range error
Continuously Refreshed
Area Alarm settings,
zero/span adjustment
values, etc.
Area Refreshed at Restart
Initial values for input types,
scaling, etc.
Expansion Setting Area
settings
I/O refresh
PLC turned ON or
Unit restarted.
m = (unit No.
×
100)
n = 2000 + (unit No.
×
10)
m+1
m+17
m+18
m+2
m+38
m+39
m+40
n
n+1
n+9
to
Expansion Setting Area
Address specified in m+40
Data for Operation
Process Value Alarm
Power ON or Unit restart
I/O refresh
I/O refresh
to
to
to
to
Unit values read command
Address of data range error
Refer to P. 31
Refer to P. 33