Dry Contact Operation; Appendix C: Connecting Rs485 (Modbus) - Honeywell FMC2000 User Manual

FMC2000 User's Guide

27.3.2 Dry Contact Operation

The five relays are pre-configured as powered contacts, with
10VDC. Any or all of the relays can have power removed for
"dry-contact" operation. For dry-contact operation, remove the
jumpers (labeled "JP") located adjacent to each connection block.
To remove a jumper, pull it straight up.
28 Appendix C: Connecting RS485
(Modbus)
Follow standard Modbus procedures when connecting the
FMC2000 via RS-485. Wires should be connected to points 16
and 17.
Note: Configuration must be done in the menus of the FMC2000
for proper operation.
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