133
Communications Timing
Section 4-4
4-4-2
Communications Control Signals and Communications Timing
If CTS control is enabled in the Setup Area, the RTS output signal will be
turned ON from the Board or Unit and the send process will go on standby
until the CTS input signal turns ON. Either release this busy status by incorpo-
rating the RTS output signal for the CTS input signal at the host computer, or
loop the RTS output signal back to the CTS input signal at the Unit or Board.
Note
The status of the RTS and CTS signals can be confirmed in the Transmission
Control Signal Status in the Status Area. Refer to page 130.
4-4-3
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).
Communications Port
Completion Codes
The Communications Port Completion Code words will contain the FINS end
code after SEND(090), RECV(098), or CMND(490) has been executed.
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
08 to 15
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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Страница 89: ...60 Basic Operating Procedure Section 1 9...
Страница 151: ...122 RS 232C and RS 422A 485 Wiring Section 3 4...
Страница 173: ...144 Host Link Function for Replacing Existing PLCs Section 4 6...
Страница 223: ...194 Enhanced Protocol Macro Functions Section 5 6...
Страница 277: ...248 Communications Frames Section 6 8...
Страница 291: ...262 Basic Operating Procedure in No protocol Mode Section 7 4...
Страница 301: ...272 Auxiliary Area and CIO Area Allocations Section 8 3...
Страница 391: ...362 Introduction Appendix A...
Страница 421: ...392 CompoWay F Master Protocol Appendix B...
Страница 513: ...484 E5 K Digital Controller Read Protocol Appendix F...
Страница 571: ...542 E5ZE Temperature Controller Write Protocol Appendix I...
Страница 587: ...558 E5 J Temperature Controller Protocol Appendix J...
Страница 627: ...598 ES100 Digital Controller Protocol Appendix K...
Страница 661: ...632 V500 V520 Bar Code Reader Protocol Appendix M...
Страница 697: ...668 3Z4L Laser Micrometer Protocol Appendix N...
Страница 717: ...688 Visual Inspection System Protocol Appendix O...
Страница 755: ...726 V600 V620 ID Controller Protocol Appendix P...
Страница 763: ...734 Hayes Modem AT Command Protocol Appendix Q...
Страница 767: ...738 Changing Communications Port Settings Using STUP 237 Appendix R...
Страница 781: ...752 Revision History...