Endress+Hauser Proline Promass 83 - Page 95

Device Functions Proline Promass 83 MODBUS RS485 7 Block OUTPUTS
Endress+Hauser 95
OFF-VALUE
MODBUS register:
Relay output 1
Relay output 2
Data type:
Access:
4703
3806
4006
Float
read/write
! Note!
Function is not available unless LIMIT VALUE was selected in the ASSIGN RELAY
function (4700).
Use this function to assign a value to the switch-off point (relay drops out). The
value can be higher or lower than the switch-on 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!
• The appropriate unit is taken from the function UNIT VOLUME FLOW (0402)
or UNIT MASS FLOW (0400).
• If SYMMETRY is selected in the function MEASURING MODE (4705) and
values with different signs are entered for the switch-on and switch-off points,
the notice message “INPUT RANGE EXCEEDED” appears.
SWITCH-OFF
DELAY
MODBUS register:
Relay output 1
Relay output 2
Data type:
Access:
4704
3808
4008
Float
read/write
! Note!
Function is not available unless LIMIT VALUE was selected in the ASSIGN RELAY
function (4700).
Use this function to define a delay (0 to 100 seconds) for dropout (i.e. signal
changes from 1 to 0) of the relay output.
The delay starts when the limit value is reached.
The relay output does switch when the delay has timed out and the switch off
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 → RELAY OUTPUT (1 to 2) → CONFIGURATION