Honeywell UDC3200 Product Manual page 98

Configuration
Function Prompt
Lower Display
SHED SP
UNITS
CSP RATO
CSP BIAS
LOOPBACK
86
Selections or
Range of Setting
Upper Display
TO LSP
TO CSP
ENG
PERCENT
–20.0 to 20.0
–999. to 9999.
(engineering units)
DISABLE
ENABLE
UDC3200 Universal Digital Controller Product Manual
Parameter
Definition
SHED SETPOINT RECALL
Note: If SHEDENAB=DISABLE, this prompt will not
be configurable.
TO LSP—Controller will use last local or remote
setpoint used.
TO CSP—When in "slave" mode, the controller will
store the last host computer setpoint and use it at
the Local setpoint. When in "monitor" mode, the
controller will shed to the last instrument Local or
Remote setpoint used, and the LSP is unchanged.
COMPUTER SETPOINT UNITS
ENG — Engineering units
PERCENT — Percent of PV range
COMPUTER SETPOINT RATIO—Computer
setpoint ratio.
COMPUTER SETPOINT BIAS—Computer setpoint
bias in Engineering Units.
LOCAL LOOPBACK tests the RS-485
communications port. It is not used for any other
communications port.
DISABLE—Disables the Loopback test.
ENABLE—Allows loopback test. The instrument
goes into Loopback mode in which it sends and
receives its own message. The instrument displays
PASS or FAIL status in the upper display and
LOOPBACK in the lower display while the test is
running. The instrument will go into manual mode
when LOOPBACK is enabled with the output at the
Failsafe value. The test will run until the operator
disables it here, or until power is turned off and on.
ATTENTION The instrument does not have to be
connected to the external communications link in
order to perform this test. If it is connected, only one
instrument should run the loopback test at a time.
The host computer should not be transmitting on the
link while the loopback test is active.
12/04