American access system ADV-1000 Guia do Utilizador descarregar pdf (Página 359)

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3 The RTS Mode (Request to Send) allows the

device on the other end to know the Intelligent

Controller is ready to send information. The RTS

Mode defaults to "Always On."

The "Toggle" RTS Mode applies when there is

an RS-485 to RS-232 converter that requires a

handshake. The Toggle option is never used for a

direct connection.

4 Click Next to advance to the System window.

TCP/IP Options

The following options are only available if a network

card is installed on the PC, and the PRO-2200

Intelligent Controller is being configured for a TCP/

IP connection.

5 The Controller Reply Timeout is the duration

the Host PC (DLL) will wait for an acknowledg-

ment after it has sent an outgoing packet.

If acknowledgment is not received within the

specified time, the Host PC (DLL) will resend

the packet. The host will retry according to the

Host Retry Count set in the panel. The timeout

defaults to 500 mSec but can be set from 200 to

1500 mSec. 400 to 600 mSec is a reasonable

setting for network connections. The setting

should be higher for a WAN.

6 The Poll Delay [which only affects incoming

communication] allows the system to delay

polling to avoid loading down the network if

there is no activity. The default for the Poll

Delay is 2 seconds, but can range from zero to 5.

Poll Delay is used only if the communications

channel type is set to TCP/IP (meaning that this

value is ignored for Serial Port communication

channel types, and DialUps).

Programming

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