87K4/5/8/9 RS-485 I/O Expansion Unit
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3.2 RS-485 Converter:
87K4/5/8/9 I/O Expansion unit supports
only
i-87K
and
M-87K
I/O modules. It does not
support i-8K series I/O module. The only communication interface of 87K4/5/8/9 I/O
Expansion unit is its
RS-485 port
.
So, it often needs a RS-232 to RS-485 converter such as 7520 to converter the RS-232
signal to RS-485.
For more detail about the converter selection guide, please refer to:
http://www.icpdas.com/products/Industrial/communication_module/communication_list.htm
For using the i-7520, please refer to:
http://ftp.icpdas.com.tw/pub/cd/8000cd/napdos/7000/manual/7520.pdf
For most personal computers also provide USB interface, it also can use 7561 (USB to
RS-232/422/485) converter.
Note: When use 7561 as USB to RS-232/422/485 converter, the computer must install the
USB driver first.
ftp://ftp.icpdas.com.tw/pub/cd/8000cd/napdos/7000/756x/i-7561/
Summary of Contents for I-87K Series
Page 12: ...87K4 5 8 9 RS 485 I O Expansion Unit 12 3 3 The Wirings...
Page 14: ...87K4 5 8 9 RS 485 I O Expansion Unit 14 Wire Connection...
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Page 22: ...87K4 5 8 9 RS 485 I O Expansion Unit 22 Appendix A Dimensions...
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