ACC Utilities Reference Guide

TTGEN - ZCOM System Table Generator
Creating the TTGEN Configuration File
Chapter 236
Program-ZLU
Number of spare program ZLUs to be allocated. Program ZLUs are only
associated with programs and drivers that use the ZCOM API. Each
program uses at least one program ZLU. The default number of spare
program ZLUs is 256. The valid range of values is 1…10000
(ZCOM_MAXPZLU in /opt/acc/include/zcom/zcomsys.h).
Terminal-ZLU
The maximum number of terminal ZLUs that may be defined in this
system. This number must be as big as the largest terminal number
defined in the terminal definition section of the TTGEN configuration
file. While the Terminal-ZLU parameter value may exceed the number of
terminal ZLUs defined in the terminal definition section, note that each
terminal ZLU is allocated 40 bytes of space even if it does not have a
terminal assigned to it. It is useful to allow gaps in the ZLU numbers to
allow for expansion. This avoids having to reallocate the existing ZLU
numbers. In addition, dynamically allocated terminal ZLUs are taken
from unused terminal entries. The valid range of values is 1…65535
(ZCOM_MAXTZLU in /opt/acc/include/zcom/zcomsys.h).
Logical-Term
Total number of logical terminal tables in this configuration. While this
value may be greater than the number of logical terminals configured - to
allow for programmatic additions while the system is running - it must
not be less than the number of physical terminals which are connected to
the system. In most configurations, the Logical-Term and Physical-Term
parameters are set to the same value. This value must not be greater
than the number defined in Terminal-ZLU. The valid range of values is
1…65535 (ZCOM_MAXLTERM in /opt/acc/include/zcom/zcomsys.h).
Physical-Term
Total number of physical terminal tables in this configuration. While this
value may be greater than the number of physical terminals configured -
to allow for programmatic additions while the system is running - it
must not be less than the number of physical terminals which are
connected to the system. This value must not be greater than the number
defined in Logical-Term. The valid range of values is 1…65535
(ZCOM_MAXPTERM in /opt/acc/include/zcom/zcomsys.h).