Omron CQM1H-SCB41 Operation Manual page 97

Control Bits, Flags, and Status Information
Word Bits
IR 204 00 Port 1 Tracing Flag
According to instructions from the CX-Protocol, this flag is
turned ON while time-series data for send and receive mes-
sages is being traced.
01 Port 2 Tracing Flag
Same as IR 20400.
08 to 11 Port 1 Protocol Macro Error Code
The list of error codes is provided at the end of this table on
page page 84.
If error code 1, 2, 3, or 4 is stored, the Port 1 Protocol Macro
Execution Error Flag (IR 20111) will be turned ON, the
ERR/ALM indicator on the CPU Unit will flash, and a non-
fatal error will occur.
When an error occurs, the error code is held until the next
sequence starts.
The error must be cleared from a Programming Console or
other Programming Device after the cause of the error has
been eliminated.
12 to 15 Port 2 Protocol Macro Error Code
Same as IR 20408 to IR 20411, but works together with
IR 20112.
IR 205 00 to 03 Port 1 Executed Reception Case No. (code)
Reception matrix case numbers 0 to 15 (0 to F hex) are
stored for which reception has been completed. The num-
ber is cleared when the sequence execution starts.
The Executed Reception Case No. is stored only when the
reception matrix is set using the RECEIVE or
SEND&RECEIVE command. If a reception matrix is not set,
the case number will be set to 0 (cleared) when another
command is executed.
04 to 07 Port 1 Completed Step Number
Step numbers 0 to 15 (0 to F hex) are stored for the steps
for which execution has been completed.
15 IR 204 Port 1 Data Stored Flag
0: No data stored; 1: Data stored in IR 20408 to IR 20411
IR 206 00 to 03 Port 2 Executed Reception Case No. (code)
Same as IR 20500 to IR 20503.
04 to 07 Port 2 Completed Step Number
Same as IR 20504 to IR 20507.
IR 205 15 IR 204 Port 2 Data Stored Flag
0: No data stored; 1: Data stored in IR 20412 to IR 20415
82
Name and Function
Section 5-6
Classifi- Set
cation
Tracing Start of trace Start of
Protocol When error
macro sta- occurs
tus
Sequence When matrix
status is received
When step is
executed
Protocol When error
macro occurs
Sequence When matrix
status is received
When step is
executed
Protocol When error
macro occurs
Reset
sequence or
end of trace
Start of
sequence