Word N+8 Bit 09: Data Reception Error Flag - Omron C200H-MC221 Operation Manual

Interface Bit Specifics
Signal

6-5-34 Word n+8 Bit 09: Data Reception Error Flag

Signal
Timing Chart
Required information
is set in the expansion
data area.
No data can be received when this flag is ON.
The Reception Completion Flag settings have the following meanings.
Signal
↑ Data has been received.
↓ No data is being received.
Note Refer to 6-5-12 Word n+1 Bit 12: Reception Control Bit.
This flag will be turned ON when one of the following errors results during data
reception.
• The number of transfer words, source address, or destination word is not BCD.
• The source address is not in the acceptable range.
• The destination word exceeds the upper limit of the data memory.
• The number of transfer words is not within 3 to 6,000 in three-word blocks for
position data and two-word blocks for other data.
• The destination word plus the number of transfer words exceed the upper limit
of the data memory.
• The destination word plus the number of transfer words are not within the
acceptable range.
Example: If the Reception Control Bit is turned ON to read 600-word position
data beginning with position data number 1,900, the last position
data number exceeds the upper limit 1,999 (i.e., 1,900 + 600/3 =
2,100)
This flag will be turned OFF when data is received normally.
The Data Reception Error Flag settings have the following meanings.
Signal
↑ An error resulted during data reception.
Data was retransmitted and received normally.
↓
No. of transfer words
(I+3)
Source address
(I+4)
Destination word
(I+5)
Reception Control Bit
(n+1 bit 12)
Reception
Completed Flag
(n+8 bit 08)
Data Reception Error
Flag (n+8 bit 09)
Set Free
Set Free
Set Free
40 ms min.
(Depends on the
volume of data.)
Error results.
Section 6-5
Function
Function
Set Free
Set Free
Set Free
40 ms min.
(Depends on the
volume of data.)
Data is retransmitted
and received normally.
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