ACC Programmer's Reference Guide

Chapter 4 293
ZCOM C I/F Library Routines
ZSET_RCVR (3X)
PARAMETERS
NOTES Usually, an application uses only mode ZcNORMAL to set up it self as the
receiver for normal data and status messages. An application uses mode
ZcCONTROL only i f it needs to receive “control” messages. Control
messages are generated by ZCOM protocol modules. You should refer to
the specific ZCOM Protocol Manual to determine the “control” messages
generated by t hat protocol, if any.
Modes ZcINB_MLTPLX and ZcOUTB_MLTPLX require the terminal to
be an inbound and outbound multiplexed terminal, respectively.
Otherwise, error ZERTYPE (-54) is returned. A multiplexed terminal is
usually set up by defining the proper device type in the TTGEN
configuration file (using TERM or LTERM statements). It may also be
modified by using zltmx.
When inbound multiplexing is enabled for a terminal, an inbound
receiver must be set up (using mode ZcINB_MLTPLX) by the
multiplexing program, which will be responsible for receiving messages
from the terminal and passing them to the “normal receivers” kept in the
logicalterminaltables.
action Type of action to perform.
ZcADD_PRIMARY - Sets the program ZLU as the primary receiver.
ZcDEL_PRIMARY - Deletes the primary receiver.
ZcADD_SHARED - Adds the program ZLU to the list of shared receivers.
ZcDEL_SHARED - Removes the program ZLU from the list of shared recei
zap ZCOM address of terminal.
mode Receiver mode:
ZcNORMAL (0) - Set receiver for normal messages
ZcINB_MLTPLX (1) - Set inbound multiplexer receiver
ZcOUTB_MLTPLX (2) - Set outbound multiplexer receiver
ZcCONTROL (3) - Set receiver for control messages
Note: Only one constant value can be specified per call for this field. You cannot logic
a
OR these values in one call
rzap ZCOM address of the receiver program.