Section 50
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12-06-11 -
5
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B
RS485 Communication Port
: Slave Comm. Port. (See Pictorial Above)
LK2:
These jumpers provide a termination, pick-up, and pull-down resistors for
RS485 communication chain. The PU/PD jumpers should only be in one place on the
communication chain. The TR jumper must be in place only when the I/O module is
the last in the communication chain. See control panel drawings for designation. The
cover of the MX4 must be removed to access this jumper link (LK2).
(Refer to the
Communications
chapter in this document)
C
Communication Address Select Shunts
: Comm Address
LK3:
These jumpers allow you to assign a unique address to each MX4 that may be
in the system. This allows the master controller to differentiate between the modules.
For example, to name the controller address 5, place the shunts on LK1 and LK4.
(Refer to the
Communications
chapter in this document)
