Expand Management Programming Manual
EVENT MANAGEMENT
4: ZEXP-EVT-DEV-ERR
Bit Meaning (Autopoll) Meaning (Modem Control)
----- ------------------ -----------------------
.
0
0 0
.
1
Channel underrun 0
.
2
Channel abort 0
.
3
Channel parity error 0
.
4
Modem loss 0
.
5
Autopoll terminated 0
.
6
Transmit underrun Data set ready interrupt
.
7
0 0
If a modem loss was detected, bits 8 through 15 of the status
word indicate modem status as follows:
Bit Meaning
----- -------
.
8
Data set ready (inverted)
.
9
Carrier detect (inverted)
.
10
Clear to send (inverted)
.
11
Transmit overrun
.
12
RS-422
.
13
Maintenance mode
.
14
Request to send
.
15
Data terminal ready
If no modem loss was detected, bits 8 through 15 of the status
word have the following meanings:
Bit Meaning (Write Unit) Meaning (Read Unit)
----- -------------------- -------------------
.
8
Receiver error
.
9
Assembled bit count,
bit 0 (ABC.
0
)
.
10
ABC.
1
.
11
Ending state count ABC.
2
.
12
Receiver overrun error
.
13
Abort/Go-Ahead character
detected
.
14
Receiver end-of-message
.
15
0
Bit Meaning (Autopoll) Meaning (Modem Control)
----- ------------------ -----------------------
.
8
0 Data set ready
(inverted)
.
9
0 Carrier detect
(inverted)
.
10
0 Clear to send (inverted)
.
11
0 Transmit overrun
.
12
0 RS-422
.
13
0 Maintenance mode
.
14
End of poll list Request to send
.
15
End of poll Data terminal ready
8-13