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Allocated CIO Area Words Section 3-2
3-2 Allocated CIO Area Words
Data is stored at the offset positions shown in the figure below starting from
the first word allocated to the Unit in the CIO Area.
The first word can be calculated as follows from the unit number setting:
First word n = CIO 1,500 + (25 x unit number)
3-2-1 Software Switches 1 (Word n)
All switches execute some function when the user turns them ON. They turn
OFF automatically after the function has been executed. Once a function is
set by turning a switch ON (except for the switches listed below), it is saved
regardless of whether the power is turned OFF and ON again.
•
Remote I/O Communications Start Switch (bit 02, 03)
• Remote I/O Communications Stop Switch (bit 04)
Note No functions other than master and slave communications are disabled by
stopping master or slave communications.
If multiple bits are turned ON simultaneously, the requests will generate errors
but they will not alter Unit operation. The corresponding error bits in the follow-
ing words will turn ON if a request made by a software switch ends in an error.
Word Bit 15
Software Switches 1
Software Switches 2
Master COS Send Switches (4 words)
Disconnect/Connect Switches (4 words)
Unit Status 1
Unit Status 2
Master Status 1
Master Status 2
Slave Status 1
Slave Status 1
Registered Slave Table (4 words)
Normal Slave Table (4 words)
C200H Master Replacement Status (1)
Bit 00 Direction
I/O
CPU Unit ↔ DeviceNet Unit
Outputs
CPU Unit → DeviceNet Unit
Inputs
CPU Unit ← DeviceNet Unit
n
n+1
n+12
n+15
n+13
n+14
n+2
n+5
n+3
n+4
n+6
n+9
n+7
n+8
n+10
n+11
n+16
n+19
n+17
n+18
n+20
n+23
n+21
n+22
n+24