Ir/Cio Bit Allocations - Omron SYSMAC C Series Operation Manual

Data Exchange with CPU Unit

9-3-2 IR/CIO Bit Allocations

Two-word Operating Mode
Output Words (CPU Unit → Analog Output Unit)
Allocated I/O word
n
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Bit Name
PC Busy
PC Write Complete
PC Read Complete
EEPROM Write Bit
Reserved
Parameter Update Bit
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Function
These bits operate automatically when executing
I/O READ/WRITE instructions. It is not possible for I/O READ/WRITE instructions It is not possible for
the user to write to these bits. Set to 0 when
outputting word n using an output instruction, such outputting word n using an output instruction such
as the MOV instruction.
When this bit is turned ON, the content of RAM is
written to EEPROM. The data is automatically read
from EEPROM back to RAM when the power is
turned ON.
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When this bit is turned ON, the last set parameters
such as the scaling function, output ramp function,
upper/lower limit function, and binary/BCD mode are
made valid. Due to the internal processing time of
the Analog Output Unit, turn ON this bit at least
100 ms after the parameters have been written.
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Section 9-3
163