AM3270 Management Programming Manual

COMMANDS AND RESPONSES
ADD Command
ZPROTO specifies the protocol to be used by the subdevice.
This required field must be assigned one of the following
values:
ZAM3-VAL-PROTO-CRT The CRT protocol will be used.
ZAM3-VAL-PROTO-PTR The printer (PTR) protocol will be used.
ZAM3-VAL-PROTO-PTP The pass-through protocol (PTP) will be
used
ZAM3-VAL-PROTO-ITI The Interactive Terminal Interface (ITI)
protocol will be used.
ZAM3-VAL-PROTO-QUO The QUOTRON (QUO) protocol will be used.
Refer to the Device-Specific Access Methods--AM3270/TR3271
manual for more information about these protocols.
ZRECSIZE specifies the maximum number of bytes the subdevice
can send or receive in a record. This is a required field.
The recommended record size depends on the protocol used and
the type of subdevice as follows:
ITI terminal Use the number of columns (40 or 80) as the
record size.
CRT terminal Use the defined screen size as the record
size. The record size is used for reference
only.
QUO terminal Use the defined screen size as the record
size.
PTP subdevice The AM3270 I/O process allocates the
buffer based on the value of this field.
Use the defined screen size as follows:
Screen Size Record Size
480 512
960 1024
1920 2048
2560 3072
3440 4095
When using pass-through mode, the AM3270
subdevice should have the same record size
as the TR3271 subdevice that is on the
other end of the connection.
PRT subdevice Use the line length as the record size.
6-16