Watlow PPC-2000 User Manual
Page 219
PPC-2000 User’s Guide
Chapter 5: LogicPro and Modbus Reference
Doc.# 30002-00 Rev 2.3
Watlow Anafaze
191
Table 5.29
Alarm Bit Definitions
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CAUTION!
Failed sensor alarms are only checked on inputs
associated with channels. Any input that is not
selected as the
PV Source
of a channel will not
generate failed sensor alarms.
Alarm Control Flags
Each Alarm Control register contains a 16-bit word. The bits
determine the behavior of the various alarms. Setting an Alarm
Control bit to 1 makes the corresponding alarm behave as a
control. Setting a bit to 0 makes it behave as a standard alarm.
Table 5.30 on page 192 describes the difference between
standard alarms and controls. See Table 5.29 for alarm bit
definitions.
Bit
Alarm Name
1 (least significant)
Spare
2
Spare
3
Low deviation
4
High deviation
5
Low process
6
High process
7
Spare
8
Spare
9
T/C break (or open)
10
RTD open
11
RTD short
12
Spare
13
Spare
14
Ambient Temperature
15
Spare
16 (most significant)
Spare