70
Component Names and Functions
Section 2-1
Note
1.
Depending on the interval of flashing, the meaning is as follows:
Protocol data being initialized: 0.3 s
Protocol data initialized, or being overwritten: 1.0 s
Protocol data error: 1.0 s and CPU Unit ERC indicator is flashing
2.
The Setup Area is allocated in the DM Area according to the unit number
setting. For details, refer to
2-3 I/O Memory Allocations
.
3.
Only the CJ1W-SCU31-V1/41-V1 is equipped with a TER1 indicator.
4.
Only the CJ1W-SCU31-V1 is equipped with a TER2 indicator.
For the action required when an error occurs, refer to
Section 11 Trouble-
shooting and Maintenance
.
Unit Number Switch
Set the CPU Bus Unit unit number for the Unit. The CIO Area and DM Area
are allocated according to the unit number setting. The words that are allo-
cated are used for the software switches, Status Area, and the System Setup.
Set the unit number between 0 and F. The factory setting is for unit number 0.
RS-422A/485 Port
The specifications of the RS-422A/485 port are the same as those for the RS-
422A/485 port on the Serial Communications Board. See
RS-422A/485 Port
on page 64.
RS-232C Port
The specifications of the RS-232C are the same as those for the RS-232C
port on the Serial Communications Board. See
RS-232C Ports
on page 63.
ERC
Red
Lit
Unit hardware error
Flashing
Protocol data syntax error or protocol data
error (SUM error).
Not lit
Unit is operating normally.
SD1
Yellow
Lit
Port 1 is being used for sending.
Not lit
Port 1 is not being used for sending.
RD1
Yellow
Lit
Port 1 is being used for receiving.
Not lit
Port 1 is not being used for receiving.
TER1
(see note
3)
Yellow
Lit
Terminating resistance is connected internally
for port 1.
Not lit
Terminating resistance is not connected inter-
nally for port 1.
SD2
Yellow
Lit
Port 2 is being used for sending.
Not lit
Port 2 is not being used for sending.
RD2
Yellow
Lit
Port 2 is being used for receiving.
Not lit
Port 2 is not being used for receiving.
TER2
(see note
4)
Yellow
Lit
Terminating resistance is connected internally
for port 2.
Not lit
Terminating resistance is not connected inter-
nally for port 2.
Indicator
Color
Status
Meaning
Содержание SYSMAC CJ1W-SCU21-V1
Страница 3: ...iv...
Страница 5: ...vi...
Страница 9: ...x...
Страница 15: ...xvi...
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...