7800 SERIES S7800A KEYBOARD DISPLAY MODULE
37
65-009
0-6
Register
40003
7800
SERlES
Sequence
State
String Code
Uses
mm:ss
Bur
n
er
Control
S
tate
Bits
Line
1
Lin
e
2
16
PURGE HOLD:
TEST
RUN/TEST SWITCH
93 98
4004h
17
PURGE
DELAY:
T18
LOW FIRE JUMPRD
89 56
4004h
18
PURGE HOLD: F/G
FLAME DETECTED
93 35
4004h
19 PURGE 87 0
0004h
20 PURGE HOLD: T18
LOW FIRE SWITCH
93 58
4004h
21 PuRGE HOLD: T7
Running Interlock
93 101
4004h
22
PURGE HOLD:
LOCKOUT
INTERLOCK
93 54
4004h
23
PURGE HOLD:
AIRFLOW SWITCH
93 13
4004h
24
PURGE HOLD:
START SWITCH
93 106
4004h
25 PILOT IGN 78 0
0008h
26
PILOT HOLD: TEST
RUN/TEST
SWITCH
77 98
4008h
27
PILOT HOLD:
START SWITCH
77 106
4008h
28 MAIN IGN 66 0
0010h
29 MAIN IG HOLD:
MANUAL-OPEN
SWITCH
67 72
4010h
30 RUN 95 0 0020h
31
RUN PV HOLD:
LOW FIRE SWITCH
96 58
4020h
32 PVHOLD IGN 77 46
4008h
33 PV HOLD:
PV HOLD SWITCH
77 45
4008h
34 RUN/LOWFIRE:
TEST
RUN/TEST
SWITCH
97 98
4020h
35 POSTPURGE 83 0
0040h
36 STATE UNKNOWN 31 0 0000h
37
RESET/ALARM
TEST
111 0
6000h
38 SAFETY START 102 105 4002h
39 SAFETY1-1 102 2
0008h
40 SAFETY1-2 102 3
0008h
41 SAFETY1-3 102 4
0008h
42 SAFETY1-4 102 5
0008h
43 SAFETY1-5 102 6
0008h
44 Blank 0 0 A000h
45 PRE-IGNITION 84 0
0008h
7800 SERIES Sequence State Codes
Sequence state codes are provided by the Burner Control.
Each code is translated into two string codes for displaying an
associated message in two lines. Each code is also translated
into burner control state bits which may be used to generate
and control system diagrams on an operator interface. The
codes can also be retrieved from registers 40004, 40005, and
40013.
The Sequence State Codes shown in Table 20 are valid only if
the Fault Code has a value of zero. If the Fault Code is non-
zero, the sequence state field contains the sequence state
code when the lockout occurred.
Table 20. 7800 SERlES Sequence State Codes
and Associated register code values.
Table 20. 7800 SERlES Sequence State Codes
and Associated register code values. (Continued)
Register
40003
7800
SERlES
Se
quen
ce
State
String Code
Uses
mm:ss
Bur
n
er
Control
State
Bits
Lin
e
1
Line
2
Fault
code not
zero
LOCKOUT 52 Table
16
8000h
0 UNUSED HISTORY 0 0
0000h
1 INITIATE 48 0
0001h
2 INITIATE HOLD: AC
FREQUENCY/
NOISE
49 8
4001h
3
INITIATE HOLD:
AC LINE DROPOUT
49 9
4001h
4
INITIATE HOLD:
AC FREQUENCY
49 7
4001h
5 INITIATE HOLD:
LOW LINE
VOLTAGE
49 60
4001h
6 STANDBY 103 0
0002h
7
STANDBY
HOLD:
REM
REMOTE
CONTROL
104 94
4002h
8
STANDBY HOLD:
START SWITCH
104 106
4002h
9
STANDBY
HOLD:
F/G
FLAME
DETECTED
104 35
4002h
10
STANDBY HOLD:
T20
PRE-IGNITION
104 86
4002h
11
STANDBY
HOLD:
T7
RUNNING
INTERLOCK
104 101
4002h
12
STANDBY
HOLD:
T7
LOCKOUT
INTERLOCK
104 54
4002h
13
STANDBY HOLD:
AIRFLOW SWITCH
104 13
4002h
14 PURGE HOLD: T19
HIGH FIRE
SWITCH
93 40
4004h
15 PURGE DELAY:T19
HIGH FIRE
JUMPRD
89 39
4004h
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