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FINS Commands with Host Link Protocol Section 3-5
3-5-8 Flags for Network Communications
This section describes the flags in the Auxiliary Area that are used when exe-
cuting SEND(090), RECV(098), and CMND(490).
Communications Port
Enabled Flags
A Communications Port Enabled Flag turns ON when SEND(090),
RECV(098), and CMND(490) can be executed. The Flag will turn OFF during
execution of these commands and turn ON again when the command execu-
tion is completed. When creating the ladder diagram, use these Flags as input
conditions when executing these instructions.
Communications Port
Error Flags
A Communications Port Error Flag will turn ON in the following cases.
• When an error is generated during execution of SEND(090), RECV(098),
or CMND(490).
• When an error response or retry error has been generated for the port.
These Flags will turn OFF when the corresponding Communications Port
Enabled Flag is turned OFF at the start of operation or at the start of execut-
ing the SEND(090), RECV(098), or CMND(490).
Word Bit Content
A202 08 to 15 Reserved
07 Communications Port Enabled Flag, Port No. 7
06 Communications Port Enabled Flag, Port No. 6
05 Communications Port Enabled Flag, Port No. 5
04 Communications Port Enabled Flag, Port No. 4
03 Communications Port Enabled Flag, Port No. 3
02 Communications Port Enabled Flag, Port No. 2
01 Communications Port Enabled Flag, Port No. 1
00 Communications Port Enabled Flag, Port No. 0
Word Bit Content
A219 15 to 08 Reserved
07 Communications Port Error Flag, Port No. 7
06 Communications Port Error Flag, Port No. 6
05 Communications Port Error Flag, Port No. 5
04 Communications Port Error Flag, Port No. 4
03 Communications Port Error Flag, Port No. 3
02 Communications Port Error Flag, Port No. 2
01 Communications Port Error Flag, Port No. 1
00 Communications Port Error Flag, Port No. 0
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