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No.EX##-OML0007
I/O Maps
Allocated input/ output bytes of each unit type
The allocated input/ output bytes for each EX600 unit are shown below.
Allocated bytes
Unit part no.
Abbreviation
Description
Input
Output
EX600-SDN# (32 points)
SI unit (32 points)
0
4
EX600-SDN# (24 points)
SI unit (24 points)
0
3
EX600-SDN# (16 points)
SI unit (16 points)
0
2
EX600-SDN# (8 points)
SI
SI unit (8 points)
0
1
EX600-DX#B
Digital input unit
1
0
EX600-DX#C
Digital input unit
1
0
EX600-DX#C1
Digital input unit
(Open circuit detection)
1 0
EX600-DX#D
DX
Digital input unit
2
0
EX600-DY#B
DY
Digital output unit
0
1
EX600-AXA AX
Analog input unit
(2 channels)
4
(2 bytes per
channel)
0
Note) EX600-SDN# can change the allocated output bytes with switch setting.
Diagnostics
The following diagnostic data is allocated to the top of the I/O mapping input data by switching No. 1 and No.
2 of the Setting 2 switch.
Switch setting
Mode
No 1
No 2
Diagnostic data
Diagnostic data
size
0
OFF
OFF
No diagnostic data
0 byte
1
OFF
ON
System diagnostics
4 bytes
2
ON
OFF
System diagn Unit diagnostics (for 10 units)
6 bytes
3
Note 1)
ON
ON
System diagn Unit diagnostics (for 64 units)
12 bytes
Note 1) Mode 3 is reserved for future expansion and should not be used.
Note 2) The channel diagnostics cannot be allocated to the input map. Use the hand-held unit for
monitoring.
System diagnostics
Unit diagnostics
Channel diagnostics
