IAI America XSEL-QX User Manual
Page 304
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Part 4 Commands
(Note 1)
A READ command must have been executed before the other side sends the end
character.
(Note 2)
Dummy read specification (operand 2: 0) is not supported by channel Nos. 31 to 34
(Ethernet option).
SCHA
10
OPEN
1
READ
1
2
Other side
CLOS
1
x Return code of the READ command
The return code is stored in a local variable. Variable number can be set by “Other parameter
No. 24.” The default variable number is 99.
The variable number is fixed to 99 in main application version 0.20 and earlier.
0:
READ completed successfully (Receive complete)
1:
READ timeout (the timeout value is set by a TMRD command) (Continue to receive)
2:
READ timer cancelled (the wait status was cancelled by a TIMC command) (Continue to
receive)
3:
READ SCIF overrun error (Receive disabled)
4:
READ SCIF receive error (framing error or parity error) (Receive disabled)
5:
READ factor error (program abort error) (Receive disabled)
(Cannot be recognized by SEL commands)
6:
READ task ended (program end request, etc.) (Receive disabled)
(Cannot be recognized by SEL commands)
7:
READ SCIF receive error due to other factor (Receive disabled)
8:
READ expanded-SIO overrun error (Receive disabled)
9:
READ expanded-SIO parity error (Receive disabled)
10: READ expanded-SIO framing error (Receive disabled)
11: READ expanded-SIO buffer overflow error (Receive disabled)
12: READ expanded-SIO receive error due to other factor (Receive disabled)
13 to 20: Used only in Ethernet communication (optional)
21: READ SIO temporary receive QUE overflow error (Receive disabled)
22: READ SIO slave receive QUE overflow error (Receive disabled)