Xerox 3270 User Manual

Page of 34
3270 Programmer’s Guide
Manipulation of Temporary and Permanent Memory
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3.2.1. Functions where power off/on is needed
Function  1
Buffer Size
Function  7
Case
Function  14
Enable Graphics
Function  15
Baud Rate
Function  16
Number of Data Bits for Serial Input
Function  17
Parity for Serial Input
Function  18
Number of Stop Bits for Serial Input
Function  24
Port Selection
Function  38
IBM Communication Feature
3.2.2. Functions with no need for %X1 storing
Function  19
Duplex Printing (
  PCL & XES only)
Function  49
Restrict Access
Function  63
Define Logo ( 
 FSL & PCL only)
3.3. Action at Power On
When you apply power to the  converter, the following procedure will
be executed:
1. The permanent memory will be read to determine whether it con-
tains valid data. If so, the data will be loaded into the temporary
memory and normal operation will be started on the basis of the
permanent settings.
2. If the data in the permanent memory area is unreadable, it will be
cleared. The factory defaults are then read, and an error message
will be printed containing a description of the action taken. See
the chapter on  Error Messages in the FSL and PCL
programmer’s guides. Operation starts on the basis of the factory
default settings.
3. The converter checks the printer. If the printer is malfunction ing,
the converter’s indicators will signal an error.