SAMWONTECH
1st Edition of TEMP880S IM : Sep. 21. 2005 Page 17 / 101
1.4.2.10 Communication(RS485/RS232C) Wiring
▶ Turn off TEMP880S mainframe power and external power supply when wiring communication
▶ due to danger of electric shocks.
1.4.2.10.1 Wiring RS485
▶ It is possible for slave (TEMP880S) to connect multidrop maximum of 99.
▶ For TEMP880S or MASTER (PC, PLC), connect division resistance(200Ω 1/4W) on both sides of
▶ communication channel.
1.4.2.10.2 Wiring RS232C
▶ CONNECTOR : Wiring with D-Sub 9 PIN
Caution
Master Station TEMP880S
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