Electronic Temperature Monitor
E C N - 2 7 6 4 4
8
J u l y 7 , 2 0 1 0
Figure 3. Wiring Diagram
RS-485 Link (optional)
The optional RS-485 data link is accessed through a terminal block connector on
the side of the unit. This provides a method of communicating with a remote
master station using Modbus RTU protocol. Refer to Appendix E of this manual
for additional information. See Figure 4; RS-485 Wiring Diagram.
NOTE:
DO NOT install or remove jumper or connector when the unit is
powered.
Figure 4. RS-485 Wiring Diagram – 118P
Figure 4. RS-485 Wiring Diagram – 118H
