EDC Programmer’s Reference
42 Rev 007, 04/12
© SP Scientific 2012
HYSTST2? (Service Use) {F029}
Query the hysteresis, in degrees, applied to measurement of the cascade
condenser (first refrigeration stage output), for operation of the second-stage
refrigeration.
IT= / IT? {F030}
Set or query the [integral] time constant, in seconds, applied to the adjustment
of the proportioning band, governing the automatic reset ("droop" correction)
of the process temperature to setpoint.
Note: the IT value is applied only to the internal temperature-control sensor. If the
remote sensor is in use (CTLREM=1), the command ITREM should be used. The
proper selection of IT or ITREM is automatically performed by the system software per
the CTLREM command.
ITREM= / ITREM? {F031}
Set or query the [integral] time constant, in seconds, applied to the adjustment
of the proportioning band, governing the automatic reset ("droop" correction)
of the process temperature to setpoint, when the remote sensor is in use (Cf.
IT=).
LOCK= / LOCK? {F032}
Set or query the state of the Local / Remote lockout. If set to 0, the LOCREM=
command may be asserted. If set to 1, the LOCREM= command will result in
an error message.
LOCREM= / LOCREM? {F033}
Set or query the local / remote control status of the system. If set to 0, the
system may only be programmed from the [local] control panel. If set to -1,
the system may only be programmed from the remote communication link. If
the system is in local control (LOCREM=0), all commands AAAAAAAA=,
except the LOCREM= command, will result in the error message "unit is in
local". Queries will perform normally. If LOCK=1 the LOCREM= message will
return the error message "unit is locked in local/remote".
LOOP2? (Service Use) (Not Yet Implemented) {F034}
Query existence of a second control loop, in dual-loop systems.
MODE? {F035}
Query the control configuration of the system (factory-set per configuration).
0 = heat and cool, 1 = cool only, 2 = heat only.
NOISE= / NOISE? {F036}
Set or query the action of the audible alarm (activated under fault conditions
in conjunction with the red alarm lamp on the control panel). 0 = "off", 1 =
intermittent "chirp", 2 = continuous "on".
OSREM= / OSREM? {F037}
Set or query the calibration offset factor applied to the remote [external]
temperature sensor.
OSRTD= / OSRTD? {F038}
Set or query the calibration offset factor applied to the system [internal]
temperature sensor.
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