R
EV
9
139
A
MERICAN
M
AGNETICS
, I
NC
.
R
EMOTE
I
NTERFACE
R
EFERENCE
: P
ROGRAMMING
O
VERVIEW
S
TATUS
B
YTE
R
EGISTER
The Status Byte register group reports conditions from the Standard
Event register or output buffers. Data in the output buffer is immediately
reported in the “Serial Message Available” bit (bit 3). Clearing a bit in the
Standard Event register will update the corresponding bit in the Status
Byte register, according to the Standard Event enable register. Reading
the pending messages in the output buffers will clear the appropriate
“Message Available” bit. The bit definitions for the Status Byte register
are defined in the following table:
Bit 2 of the Status Byte register, indicating a quench condition, remains
set until the quench condition is cleared via the front panel or by remote
command. Bits 3 and 4 remain set until all data has been read from the
respective output buffer.
The Status Byte
condition register
is cleared when:
• A
*CLS
command is executed.
• The Standard Event register is read (only bit 5 of the Status Byte register is
cleared).
• The indicated condition no longer exists.
• The power is turned off and then back on.
The Status Byte
enable register
is cleared when:
• The
*SRE 0
command is executed.
• The power is turned off and then back on, and the Model 430 Programmer
was configured for
*PSC 1
(power-on status clear). The enable register set-
Bit Definitions for the Status Byte Register
Bit Number
Decimal
Value
Definition
0
Not Used
1
Always “0”.
1 External Rampdown
2
An external rampdown is active.
2 Quench Condition
4
The Model 430 has detected a quench.
3 Serial Message Avail-
able
8
The serial output buffer contains
unread data.
4
Not Used
16
Always “0”.
5 Standard Event
32
One or more enabled bits are set in the
Standard Event register.
6 Status Byte Summary
64
One or more enabled bits are set in the
Status Byte register.
7
Not Used
128
Always “0”.
Summary of Contents for 430
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Page 16: ...XVI REV 9 AMERICAN MAGNETICS INC FOREWORD SAFETY SUMMARY ...
Page 28: ...12 REV 9 AMERICAN MAGNETICS INC INTRODUCTION OPERATING CHARACTERISTICS ...
Page 64: ...48 REV 9 AMERICAN MAGNETICS INC INSTALLATION POWER UP AND TEST PROCEDURE ...
Page 208: ...192 REV 9 AMERICAN MAGNETICS INC SERVICE RETURN AUTHORIZATION ...
Page 248: ...232 REV 9 AMERICAN MAGNETICS INC APPENDIX SHORT SAMPLE MODE ...
