RAD Data comm HCD-E1 - Manual (Page 92)

Chapter 4 - Control from the Supervisory Port HCD-E1 Installation & Operation Manual
4-8 HCD-E1 Control Language 11/01/00 19:23
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Commands can be entered only when the HCD-E1 control port working
prompt is displayed. The prompt is HCD>, and it always appears at the
beginning of a new line. The cursor appears to the right of the prompt.
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Commands are case-insensitive, that is, you can type commands in either
lowercase or uppercase letters.
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To correct typing errors, press the BACKSPACE key until the error is
cleared, and then type the correct command.
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Use space as a separator between command fields and/or parameters.
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Commands must end with a carriage return <CR>.
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To cancel the current command, press CTRL-C. You will obtain the
HCD-E1 prompt again.
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If AUTOBAUD is on, start any session by pressing the <CR> key three
times in sequence. This will ensure identification of terminal data rate.
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At the start of a session, when password protection is on, the prompt
HCD-E1 displays is PASSWORD. This means that HCD-E1 is waiting for
the password before continuing. When you start entering the password,
HCD-E1 responds to your input with asterisks. After the correct password
is received, HCD-E1 sends the working prompt.
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After the working prompt is displayed, the user can enter the desired
command. Full duplex communication with the terminal is necessary.
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When HCD-E1 uses a non-zero node number, prefix any command
with: NODE<SP>'node number'<SP>, where 'node number' is the
three-digit node number. No response will occur until the node number
is received and acknowledged by the addressed HCD-E1.
Acknowledgment is indicated by the echoing of the node number part,
i.e. Node<SP>nnn<SP>, where <SP> stands for space.
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At the start of a session, when password protection is on, you must
enter the password after the node number. After the correct password
is received, HCD-E1 sends the working prompt.
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If password protection is off, this step is omitted and the working
prompt appears after the node number conditions are fulfilled.
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The node number is in the range of 1 through 255 (0 indicates that the
selective addressing function is disabled). To set or change the node
number, use the DEF NODE command.
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Command evaluation starts only when you press the <CR> key after the
last page of the data form.