Flags; Reception Example - Omron C200H-MC221 Operation Manual

IORD Instruction

4-10-2 Flags

4-10-3 Reception Example

Value
ER The number of data transfer words
(25503) is 0, 128 or over, or not BCD.
The indirect DM is set to 6656 or
over or not BCD.
The source unit number is other
than 0 to F or in the SYSMAC
BUS.
The instruction was not completed
normally.
A Unit that has an error was
specified.
CY ---
(25504)
> ---
(25505)
= Data reception was normal.
(25506)
One of the following error has
occurred, in which case bit 14 of
word n+8 turns ON.
The position data is valid.
< ---
(25507)
OF ---
(25404)
UF ---
(25405)
N ---
(25402)
Refer to the following for examples of data reception using the C200HG with the
MC Unit mounted, the unit number of which is set to 0. In these examples, the
operand of the IORD instruction and the transmission data are normal.
At the time of debugging, write a ladder program to refer to the Error Flag (word
n+8, bit 14).
ON
None of the conditions on the left
exists.
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The I/O transfer required with a
previous cycle has not been
completed.
The previous intelligent transfer
has not been completed.
The address of the specified MC
Unit is not within the acceptable
range or BCD.
The number of data transfer words
was one of the following.
The number of position data
transmission words was not a
multiple of three.
The number of data transmission
words other than position data
transmission words was not two.
The value of the MC Unit's
address plus the number of
transfer words divided by three
exceeded the value of the address
of the position data.
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Section 4-10
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