Red Lion PCU - Manual (Page 21)

REMOTE AND LOCAL SETPOINT OPERATION
The controller setpoint mode can be switched between Local Setpoint
operation and Remote Setpoint operation. In the Hidden Function Mode, the
“SPSL” parameter allows the operator to select the desired setpoint operating
mode. To allow front panel switching between setpoint modes, program the
setpoint select parameter (SPSL) to “Enbl” in the Lockout Module. The user
input or RS485 serial interface option may also be used to perform the
setpoint selection function, independent of the setting in the Lockout Module.
Front panel annunciator REM is on for Remote setpoint operation and is
off
for Local setpoint operation. When transferring the controller mode from/to
the setpoint modes, various controller response options are available (see
SPtr parameter, page 37).
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