Keyence BL-180 User Manual Page 94

  • Download
  • Add to my manuals
  • Print
  • Page
    / 109
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 93
Power Supply BL-U1
88
1.8
Wiring the RS-485 (multidrop link)
Multidrop link is a method to connect multiple BL series units to a single PC. See
P. 82 of this document for details. Use the terminal blocks SDA and SDB.
Twisted pair cable
Up to 31 BL-U1 (BL series) units can be connected in multidrop link.
The extended cable length must be within 1.2 km.
Connect the BL-U1 (BL series) to a PC using a commercially available RS-
485/RS-232C convertor.
For units between the RS-485 (those marked with * in the above gure), turn
ON the terminator.
You can turn the BL-U1 terminator on and off using DIP switch 5. For the ter-
minator of the RS-485/RS-232C convertor, see the instruction manual for the
convertor.
Do not connect the RS-485 cable through the terminal block.
Do not connect the multidrop link cables together with the power cable.
Avoid connection including branch of the BL-U1 and RS-485/RS-232C conver-
tor as shown below.
SDA
SDB
SDA
SDB
SDA
SDB
SD/RD+
SD/RD-
RS-232C
PC
*
*
BL-U1 BL-U1 BL-U1
RS-485/RS-232C convertor
GND
SGSG
SG
Twisted
Shielded cable
CAUTION
BL
BL BL
Convertor
BL
BL BL
Convertor
**
Not applicable
(Connection with branch)
Applicable
(Connection without branch)
Terminator ON
Page view 93
1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 108 109

Comments to this Manuals

No comments