Watlow CLS User Manual

Page 53

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Installation

CLS User’s Guide 45

Use a 200 ohm terminating resistor on the RX line of the last controller
in the system. (If you have only one controller, it is the last controller in
the system.) Use jumper JU1 to select the terminating resistor; place it
in B position for termination and A position for non-termination.

NOTE

Connect the shields to earth ground only at the computer
or other 485 interface. Do not connect the shield to the
controller.

If you connect RS-485 communications and they do not
function properly, or if you have measurement problems
when communications lines are connected, request addi-
tional technical information from the Watlow Anafaze
Customer Service Department.