Endress+Hauser Proline Promass 83 - Page 86

7 Block OUTPUTS Device Functions Proline Promass 83 MODBUS RS485
86 Endress+Hauser
ON-VALUE
MODBUS register:
Data type:
Access:
4242
3237
Float
read/write
! Note!
Function is not available unless STATUS was selected in the OPERATION MODE
function (4200) and LIMIT VALUE or FLOW DIRECTION was selected in the
ASSIGN STATUS function (4241).
Use this function to assign a value to the switch-on point (activation of the status
output). The value can be higher or lower than the switch-off point. Positive or
negative values are permissible, depending on the measured variable in question
(e.g. mass flow, totalizer reading).
User input: 5-digit floating-point number, [unit]
Factory setting: 0 [kg/h] or 2 [kg/l] or 200 [°C]
! Note!
• If SYMMETRY is selected in the function MEASURING MODE (4246) and
values with different signs are entered for the switch-on and switch-off points,
the notice message “INPUT RANGE EXCEEDED” appears.
• Only the switch-on point is available for flow direction output (no switch-off
point). If you enter a value not equal to the zero flow (e.g. 5), the difference
between the zero flow and the value entered corresponds to half the
switchover hysteresis.
SWITCH-ON DELAY
MODBUS register:
Data type:
Access:
4243
3239
Float
read/write
! Note!
Function is not available unless STATUS was selected in the OPERATION MODE
function (4200) and LIMIT VALUE or FLOW DIRECTION was selected in the
ASSIGN STATUS function (4241).
Use this function to define a delay (0 to 100 seconds) for the switch-on (i.e. signal
changes from “not conductive” to “conductive”) of the status output. The delay
starts when the limit value is reached. The status output does switch when the
delay has timed out and the switch on condition has been valid over the delay
time.
User input: fixed-point number: 0.0 to 100.0 s
Factory setting: 0.0 s
Function description
OUTPUTS → PULSE/FREQUENCY OUTPUT 1 → CONFIGURATION (STATUS)