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Introduction Section 6-1
• The RS-485 connection can be either one-to-one to one-to-N. Up to 16
units can be connected in one-to-N systems
• Keep the total cable length to 500 m maximum.
• Attach a terminator to both ends of the transmission path.
Note Communications with the E5ZN-SDL will be cut if the E5ZN-2 connection to the E5ZN-
SCT24S-500 is broken
The E5ZN Temperature Controller and the E5ZN-SDL are connected by serial
communications. When connecting multiple E5ZN Temperature Controllers,
set a different unit number for each one.
The E5ZN-SDL recognizes the E5ZN Temperature Controllers by the unit
numbers. Use the UNIT Key on the E5ZN-SDL to set the unit number of the
E5ZN Temperature Controller to be set and displayed on the E5ZN-SDL.
The E5ZN-2 Temperature Controller has two channel input channels.
Use the CH Key to set the E5ZN-SDL channel number to be displayed.
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