3-15
- Recommended cables for RS485 communication
Use the transmission cables shown below for the FP-e RS485 communication system.
Conductor
Insulator
Cable
Size
Resistance
(at 20
°
C)
Material
Thickness
Cable
Diameter
Applicable cables
Twist pair
with shield
0.5 mm
2
(AWG20)
or more
Max.
33.4
Ω
/km
Polyethylene
Max.
0.5 mm
Approx.
7.8 mm
HITACHI
KPEV-S0.5 mm
2
×
1P
Belden Inc. 9207
VCTF
0.75 mm
2
(AWG18)
or more
Max.
25.1
Ω
/km
PVC
Max.
0.6 mm
Approx.
6.6 mm
VCTF0.75 mm
2
×
2C
(JIS)
*1. Use shielded type twist cables.
*2. Use only one type of the transmission cables.
Do not mix different types of the cables.
*3. Use twist pair cables under a bad noise environment.
*4. When connecting two cables to the “
+
” and “
−
”
terminals of the COM. port (RS485), use the above
cables of which conductor cross section is 0.5 to 0.75
mm
2
, and the cross sections of two cables should be
the same.
- RS485 wiring and terminal station setting
1. For the FP-e unit at RS485 terminal station, wire the transmission line (
−
) terminal and E-terminal using a
short circuit.
2. For RS485 transmission line, three or more pairs of cables should not be connected to one station.
3. When using shielded cables for RS485 transmission line, connect one end of the shielded cable to the
ground. Provide an exclusive ground for each FP-e power supply section and RS485 transmission shield
line. Do not share a ground with other lines.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Содержание AFPE214325
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Страница 67: ...Chapter 7 I I O Monitor Mode Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 69: ...Chapter 8 PID Control Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
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Страница 81: ...Chapter 9 Specifications Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 97: ...Chapter 10 Dimensions Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 98: ...10 2 10 1 Dimensions Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 99: ...Chapter 11 Appendix Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 228: ...11 130 11 7 ASCII Codes Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...