Omron SYSMAC CJ1W-SCU21-V1, Руководство по эксплуатации

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Serial Gateway Section 6-6
will turn ON (1). Therefore, if the end code 0205 hex is returned to the source
of the FINS command and CIO word n+8/n+18, bit 05 is ON, a Serial Gateway
response timeout has occurred.
Send Start Timeout Monitoring (Protocol Macro Mode Only)
During protocol macro mode, the time from when the FINS command is
received until it is converted and starts sending can be monitored. (The
default is 5 s. The setting range for a user-specified value is between 0.1 and
25.5 s. This function is set in the DM Area.)
If transmission does not start within the set monitoring time after receiving the
FINS command, a FINS error response (end code: 0204 hex (remote node
busy)) is returned to the source of the FINS command (the FINS command is
discarded without send processing being executed).
As a result, the suspended step transition can be monitored at the source of
the FINS command. Step transition is suspended either due to the next step
being a RECEIVE command or the current command is executing (WAIT,
SEND&RECV, RECEIVE, etc.).
(1) If a Serial Gateway send start timeout occurs, CIO word n+8/n+18, bit 05
(Serial Gateway Send Start Timeout or Serial Gateway Response Time-
out) will turn ON (1).
(2) When the Serial Gateway is executed during protocol macro execution,
the communications sequence contents and the FINS command recep-
tion timing may suspend step transition of the communications sequence
(when the next step does not contain the RECEIVE command, the Serial
Gateway will be executed by interrupting the sequence before the next
step, and the step transition will be suspended).
Use the Serial Gateway send start timeout function to monitor at the
source of the FINS command whether step transition in the communica-
tions sequence has been suspended due to execution of the Serial Gate-
way. If the converted command does not start to be sent within the set
time, either retry executing the FINS command or change the communi-
cations sequence.
FINS transmission source:
Board/Unit:
Protocol macro sequence
Time
Step n+1
Remote device:
Response received
Step n
Any command except RECEIVE
RECEIVE execution when next step at
remote device contains RECEIVE command
FINS command
received
Serial Gateway exe-
cution when next step
does not contain a
RECEIVE command
RECEIVE
command
Shift to Serial
Gateway
Serial Gateway
execution timing
Send start timeout
monitoring (monitors
this time)
Send in
specified
protocol
Serial Gateway execu-
tion (protocol conver-
sion/transmission)
Receive
processing
Protocol macro
sequence resumes