Chapter Nine: RS-232 Communications
Command Messages
267
Alarm Trip Point Messages
The trip point defines the pressure at which an alarm is tripped. Trip Point A and B are standard;
Trip Point C and D are available on the Auxiliary Output board.
Alarm Messages
Message Description
Message Format
@ command
category
command
number
Parameter
Data
Optionalc
hecksum
Alarm Enable
@
0
1
1
A, B, C, or
D
: E = Enable
D = Disable
CR c1
c2
Trip Point Value
@
0
1
2
A, B, C, or
D
:
±
100,000 Torr
CR c1
c2
Alarm Association
@
0
1
3
A, B, C, or
D
: 1, 2, 3, or 4
(channel #)
CR c1
c2
Unlatch Currently
Alarmed Relays
@
0
1
4
Any
character
CR
c1
c2
Status Alert
@
0
1
5
Any
character
: E = Enable
D = Disable
CR c1
c2
Untripped State of
Unlatched Relay
@
0
1
6
A, B, C, or
D
: A = Actuated
D = Deactuated
CR c1
c2
Table 66: Alarm Messages
Table 67 lists the chapter that explains the function performed by each message.
Chapter References for Alarm Messages
Function
Chapter
Alarm Enable
Chapter Seven: Operation in Setup Mode
Alarm Trip Point
Chapter Seven: Operation in Setup Mode
Alarm Association
Chapter Seven: Operation in Setup Mode
Unlatch Currently Alarmed Relays
Applies to RS-232 messages only
see below
Status Alert
Applies to RS-232 messages only
see below
Untripped State of Unlatched Relay
Chapter Seven: Operation in Setup Mode
Table 67: Chapter References for Alarm Messages
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