Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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28
Specifications Section 1-6
Sequence contents
(step common
parameters) Number of steps
per sequence 16 max.
Transmission con-
trol parameters X-on/X-off flow, RS/CS flow, delimiter control, or contention control, and
modem control can be selected.
Response notifica-
tion method (oper-
and) Scan notification or interrupt notification (i.e., writing the receive data in
the I/O memory area specified in the 4th operand of the PMCR(260)
instruction) can be selected.
Scan notification:
Writes the receive data to I/O memory during CPU Unit scanning.
Interrupt notification:
Writes the receive data to I/O memory as soon as it is received, and at
the same time specifies the execution of the interrupt program for the
CPU Unit.
Note The interrupt notification method can be executed only by a
Serial Communications Board. It cannot be used for a Serial
Communications Unit.
Scan method (fixed) Board and Unit
Interrupt notification Board only (see note 2)
Interrupt notification
for reception case
number Board only (see note 2)
Monitoring time
during
send/receive
processing Receive wait, receive completion, or send completion can be monitored.
Setting range: 0.01 to 0.99 s, 0.1 to 9.9 s, 1 to 99 s, or 1 to 99 minutes
Link word setting Area in which data is exchanged between the CPU Unit and the Serial
Communications Board or Unit during Communications Board or Unit
refreshing. Two areas are possible for each device: An area for storing
receive data and an area for storing send data.
Note Unit Ver. 1.2 or later supports continuous I/O refreshing in addition
to the previous on-request I/O refreshing.
Item Description