Omron V500-R521B2, Руководство пользователя

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110
Sec
tion
5
How to Use Command
L
in
k
Un
it
V7
00-
L1
2
V500-R521B2/C2
User’s Manual
Section 5
Example of System Configuration
Troubleshooting of link unit
„ In case of no response (cannot receive) or garble
You can check the error condition with illumination condition of the operation indication lamp.
Operation indication lamp
:
Lights out : Illuminate
*1 Operation indication lamp repeats to blink other than during command transmission.
„ When only a specified link unit communication is abnormal
You can check the error condition with illumination condition of the operation indication lamp.
Operation indication lamp
:
Lights out : Illuminate
*2 Upper connection port p.100
RUN COMM ID ERR Check point
• Connection of RS-232C cable (Wrong connection)
• Command format (Existence of [SOH])
• Inconsistency of communication condition setting on upper equipment
side (communication speed, etc.) and communication setting on the
link unit side
• RS-232C cable wiring (effect of circumference noise)
• Inconsistency of the machine No. designated with the command and
the machine No. setting on the link unit side
• Command format ([CR], calculation of check codes, distance of
command characters, etc.)
• RS-232C cable wiring (effect of circumference noise)
• There are 2 sets or more machine No. settings of the link unit on one
system (*1)
• Connection of RS-232C cable (Wrong connection)
• When connected to the upper equipment with RS-485, switching
timing (time) of communication with the upper equipment
• 24 VDC power source line check
RUN COMM ID ERR Check point
• Connection of RS-485 cable (Wrong connection)
• Connection of RS-232C cable (Wrong connection)
• RS signal control with the upper equipment (RS signal is always OFF
or turns ON after command transmission) (*2)
• Inconsistency of communication condition setting on upper equipment
side (communication speed, etc.) and communication setting on the
link unit side
• RS-485 cable wiring (effect of circumference noise)
• Inconsistency of communication condition setting on upper equipment
side (communication speed, etc.) and communication setting on the
link unit side
• RS signal control of the upper equipment (Turns OFF before ending
command transmission) (*2)
• RS signal control of the upper equipment (RS signal is always ON)
(*2)
• 24 VDC power source line check
V500-R521.book 110 ページ ２００８年７月１８日 金曜日 午後１時１分