20 Part number HA028582. Issue 6.0 May-07
2.13.3
EIA422 Connections (3216 only)
☺
If EIA422 serial communications is fitted, the CT and LA digital input option is not possible since EIA422
shares the same terminals as the CT and LA.
☺
The KD485 communications converter is recommended for:
•
Interfacing 4-wire to 2-wire connections.
•
To buffer an EIA422/485 network when more than 32 instruments on the same bus are required
•
To bridge 2-wire EIA485 to 4-wire EIA422.
CT no connection
HE Tx+
HF Tx-
C Common
LA Rx+
HD Rx-
Daisy Chain to further
controllers
TxA
TxB
Com
RxA
RxB
Com
Tx
Rx
EIA232 to EIA422/485
4-wire communications
converter
Com
Tx
Rx
Screen
Twisted
pairs
220
Ω
termination
resistor
220
Ω
termination
resistor on last
controller in the line
Summary of Contents for 3200
Page 1: ...3200PID Temperature controllers User Guide Manuel Utilisateur Bedienungsanleitung ENG FRA GER ...
Page 57: ...3200Régulateurs de température PID Manuel Utilisateur FRA ...
Page 58: ......
Page 116: ...58 3200 Guide utilisateur HA028582FRA Indice 6 0 mai 07 ...
Page 117: ...3200PID Temperaturregler Bedienungsanleitung GER ...
Page 118: ......
Page 173: ......