Samson 3374 Series - Selecting the Application; Positioner (POSI); PID Controller (PID); Two-Step Mode (2 STP)

2-2 EB 8331-4 EN
Markings on the device
2.2 Firmware
Firmware revisions
Old New
3.10 3.11
(internal revisions)
3.11 3.12
Baudrate38400isnolongeravailableforModbus.
Communication parameters can only be changed after the key number has been entered.
Special version with three-key operation is available.
The actuator version with three-key operation allows the set point to be changed and dis-
played on the start screen in "PID controller" and "Temperature closed-loop control upon in-
put signal failure" applications. The key number does not need to be entered beforehand in
this case.
Extended temperature measurement:
In the "PID controller" application, temperatures can be additionally measured using a
Pt1000sensoratinput1andinput2.TheCodec85(unit)mustbesetto"°C"andCode
c01(source)to"Pt1000input".Themeasuringrangehasaxedrange(–50°Cto
+150°C).ThemeasuredvaluescanonlybereadovertwoModbusholdingregistersand
not processed any further in the actuator.