Siemens SIMATIC S5 Manual page 317

Checklist for Start-Up
b ) Software
– Connect the programmer to the processor of the programmable controller.
– Load function block FB 162 (control temperature controller) from diskette
into the PLC.
– Install data blocks for FB 162 and assign token values.
– Enter the parameters (see Programming Instructions IP 244) in the data
block (see Programming Instructions FB 162).
The following points should be noted when selecting parameters:
– Save the data blocks on diskette and transfer them to the PLC.
– Install the FB 162 call in the user program. The function block FB 162
(control temperature controller) may only be called once in the user program
(OB 1) per temperature controller module.
– Using the STEP 5 program, the appropriate input and output variables must
be made available and processed for FB 162. At this point, the test program
(in Part 5 of the manual) can be loaded in the PLC to operate the
temperature controller module. The test program or data blocks can then be
modified to suit the application.
– Using FB 162, transfer the parameters to the temperature controller module.
The "cold restart" function must only be used in organization blocks OB 20,
OB 21 and OB 22 (see Programming Instructions for FB 162).
– The function "assign parameters" in the cycle must be initiated with the
command "PA".
– Check the indicated actual value. Are there discrepancies compared with
measurements made with other devices?
– Check the functions of the controller, monitor the switching of the outputs.
– Transfer setpoint changes with the command "AS". Following this, the lower
setpoint can be activated.
8–6
selection of sensor types
selection of 2 or 3-point controllers
controllers with or without self-tuning function
cascaded control or normal control
check whether the correct sensor type has been set in the
parameters
check the thermocouple for correct M connection
ext
C79000–B8576–C863–02
IP244