TransCore encompass 4, Руководство пользователя

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Encompass 4 Reader System Guide
TransCore Proprietary.
7–128
Table 39 Timeout Period Values
Command Timeout (ms)
6930 0 (always expired)
6931 4
6932 8
6933 12
6934 20
6935 24
6936 32
6937 48
6938 60
6939 92
693A 152
693B 300
693C 452
693D 600
693E 752
693F Infinite (never expires, factory default)
Reader response:
Done or Error
The reader returns an
Error
message if a valid hexadecimal digit is not substituted for
N
in command
#693N
.
694N Select Input Inversion Option
Command #694N enables or disables input inversion. When inversion is enabled, an open circuit input
is interpreted as a closed circuit, and a closed circuit input is interpreted as an open circuit. This feature
allows greater flexibility in the attachment of external equipment to the reader inputs. For example, some
proximity sensors indicate presence with an open circuit. In this instance, command #6941 can enable
input inversion so that an open circuit input indicates a presence. The values for N represent the two
inversion options as shown in Table 40.