User`s guide

4: BSC 3270 Link Configuration Options
DC 900-1340I 91
page 72) which can be used by client application programs to verify the protocol run-
ning on the ICP.
The DLI configuration program (Chapter 7) considers this protocol option to be proto-
col-independent, but it must be set to
“BSC3270” in order to select the BSC 3270 proto-
col. This parameter must be set prior to any attempt to assign another BSC 3270
configuration option within a session definition (see Figure 7–2 on page 189); other-
wise the DLI configuration program will fail.
To set this option using the DLI configuration file, use the protocol parameter; for exam-
ple,
protocol = “BSC3270”. See Table 7–1 on page 190.
4.6 Parity Option (6)
When using the ASCII/LRC-8 character set, this option controls the setting of bit 7 of
each character. Parity can be set to odd, even, or none (space parity). Any transmission
containing a parity error is detected by the receiver hardware, and the appropriate error
recovery is taken by the BSC software. If no parity is selected, bit 7 is set to zero for all
transmitted characters. Parity is automatically disabled when the EBCDIC character set
is used. The parity used for ASCII transmission is normally odd.
To set this option using the DLI configuration file, use the parity parameter; for exam-
ple,
parity = “odd”. See Table 7–1 on page 190.
4.7 Character Set Option (7)
This option determines the character code for the BSC control sequences used on the
transmission line. It also determines what type of block checking is done on data blocks.
When this option is set to ASCII/LRC-8, the BSC control sequences are transmitted in
7-bit ASCII format, and LRC-8 block checking is performed.