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System Setup, Auxiliary Area Allocations, and Built-in I/O Allocations Appendix C
Start Code and End Code
Number of Received Bytes
Peripheral Service Time Settings (CX-Programmer: Timer/Peripheral Tab Page)
Fixed Service Time Enable Setting (Set Time to All Events)
Peripheral Service Time
Address Settings Function Related flags and
words
When setting is
read
Word Bits
+364 00 to 07 00 to FF hex
Default: 00 hex
The frame format
for no-protocol
communications
data (messages)
can be specified.
Specifies the end
code. This setting
is valid when bits
08 to 09 of +365
are set to 01.
A414.15 (RS-422A Port
Settings Changing Flag)
At next cycle (Also
can be changed
with STUP (237).)
08 to 15 00 to FF hex
Default: 00 hex
Specifies the start
code. This setting
is valid when bit 12
of +365 is set to 1.
+365 12 0: Don’t add start code
1: Add start code
Default: 0
Specifies whether
the frame format
for no-protocol
communications is
specified.
Specifies whether
to add a start code.
08 and
09
00: Don’t add end code and
use number of received bytes
setting
01: Add end code
11: Add CR+LF
Default: 00
Specifies whether
to add an end
code.
Address Settings Function Related flags and
words
When setting is
read
Word Bits
+365 00 to 07 00 hex: 256 bytes
01 to FF hex: 1 to 255
Default: 00 hex
Specifies the data length to send and
receive for no-protocol communica-
tions. The start code and end code are
not included in the data length.
This setting is valid only when bits 08
and 09 of +365 are set to 00.
The default setting for each TXD(236)/
RXD(235) instruction is 256 bytes. This
setting can be set to 01 to FF to set 255
bytes or less.
A414.15 (RS-422A Port
Settings Changing Flag)
At next cycle (Also
can be changed
with STUP (237).)
Address Settings Function Related flags and
words
When setting is
read
Word Bits
+218 15 0: Default (6.25% of cycle
time)
1: Custom
Default: 0
Sets the default service time or enables
setting of a custom service time.
--- At start of opera-
tion (cannot be
changed during
operation)
Address Settings Function Related flags and
words
When setting is
read
Word Bits
+218 00 to 07 00 to FF hex:
0.0 to 25.5 ms
(unit: 0.1 ms)
Default: 00 hex
Sets the time to allocate to peripheral
servicing. Bit 15 of +218 must be set to
1 to enable this setting.
--- At start of opera-
tion (cannot be
changed during
operation)