Rockwell-automation 8520-9API 9/Series OCI API Developer's Guide Bedienungsanleitung PDF herunterladen (Seite 78)

4–30 OCI Data Server Data Items

Publication 8520-6.6 - August 1999

The port_id index must always be used with this data item. You can

not use this index to access more than one port per request. Data for

this item is enumerated as follows:

This Value: Indicates/Selects

0 3 Seconds

1 15 Seconds

2 30 Seconds

3 60 Seconds

4 120 Seconds

5 180 Seconds

6 300 Seconds

7 600 Seconds

8 Unlimited (no timeout)

For example assigning a value of 4 to the following item:

PORT_TIMEOUT_VALUE, 1

selects a timeout value of 120 seconds for port A.

RX_CHAR_PORTA(rx_char_size)

Data Type USINT

Read/Write Read only

Array Index see RS232 charts

Control Type Lathe/Mill/Grinder

The RX_CHAR_PORTA item identifies a character received on

serial port A. The control always forces a null after each character

received over this port. So if a device sends an “A” character to this

port, this item will identify two characters received, the A followed

by the null character.

RX_CHAR_PORTB(rx_char_size)

Data Type USINT

Read/Write Read only

Array Index see RS232 charts

Control Type Lathe/Mill/Grinder

The RX_CHAR_PORTB item identifies a character received on

serial port B. The control always forces a null after each character

received over this port. So if a device sends an “A” character to this

port, this item will identify two characters received, the A followed

by the null character.

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Rockwell-automation 8520-9API 9/Series OCI API Developer's Guide Bedienungsanleitung Seite 78