Watlow Ramping and Profiling Microprocessor-Based Control SERIES 1500 User Manual page 71

Technical Reference
ALM?
Request current alarm code information.
Sample Response:
0018
Note: These alarms are additive and may occur in any combination. To decode, use the following list.
Subtract out the largest possible integer first, then the next largest possible integer, and so on.
The integer 16 is the largest possible integer to subtract out, leaving a remainder of 2.
The integer 2 stands alone. Thus Alarm Codes 16 and 2 are now present in the system.
AlarmCode
0
*
*
*
* 16
•
32
• 64
. 128
• 256
. 512
00
ALM
Sample Transmission:
ALM 00
NXS --
Sample Transmission:
NXS 25
ERR? Request the last communcation error code and clear the error code register to 0.
Error codes are listed in the Error Code section following this one.
Sample Response:
0111
Data Communications, Commands and Syntax, Chapter
1 =
Low RAM back-up battery.
2 =
Power interrupt.
4 =
Ch-1 Actual has exceeded UP, the upper process alarm value.
8 =
CH-1 Actual has exceeded LP, the lower process alarm value.
=
Ch-1 Actual has exceeded Ud, the upper deviation alarm value.
= Ch-1 Actual has exceeded Ld, the lower deviation alarm va!ue.
Ch-2 Actual has exceeded UP, the upper process alarm value.
=
= Ch-2 Actual has exceeded LP, the lower process alarm value.
Ch-2 Actual has exceeded Ud, the upper deviation alarm value.
=
has exceeded Ld,
Ch-2 Actual
=
Clear all alarm conditions now occurring.
the Series 1500
Put
the lower deviation alarm value.
into
Step - - now.
4
WATLOW Series 1500 User's Manual
71