Note
The value in the 'YCDO' parameter is always smaller than that in 'YCUP'. The tight closing/fast
closing function has a fixed hysteresis of 1%. The 'YCUP' parameter is relative to the
mechanical stops. The 'YCUP' is independent of the values set in the '7.SDIR' Setpoint
direction (Page 147) and '38.YDIR' Direction of manipulated variable for display and position
feedback (Page 153) parameters.
8.4.2.14 '42.BIN1' / '43.BIN2' digital input function
Setting option ● Digital input DI1
NO contact
OFF
on
bloc1
bloc2
uP
doWn
StoP
PST
NC contact
OFF
-on
-uP
-doWn
-StoP
-PST
● Digital input DI2
NO contact
OFF
on
uP
doWn
StoP
PST
NC contact
OFF
-on
-uP
-doWn
-StoP
-PST
Purpose: These parameters determine the function of the digital inputs. The
possible functions are described below. The direction of action can
be adapted to a normally closed or normally open mode.
● BIN1 or BIN2 = On or -On
Digital messages from I/O devices, e.g. from pressure or tem‐
perature switches, are read out over the communication inter‐
face or result in a response from the fault message output
through an OR logic operation with other messages.
● BIN1 = bLoc1
Use this parameter value to interlock the "Configuration" mode
against adjustment. The lock is performed e.g. with a jumper
between terminals 9 and 10.
● BIN1 = bLoc2
If the DI1 digital input has been activated, 'Manual' mode is
blocked in addition to "Configuration" mode.
Parameter assignment
8.4 Description of parameters
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 155