Net Safety MAN-0069, User Manual

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Net Safety Monitoring Inc
Modbus Controller & 4-20 Fire Head 10
STEP 5 — M
ONITOR
There are a variety of ways to indicate the status of the connected detectors:
current output, LEDs and Display Messages.
Table 4: Current Output, LEDs and Display Messages
RTU R
EGISTERS
Register 40001 = RTU Output (read only)
Register 40002 = RTU Status (read only)
Register 40101 = Reset latched relays (write)
Note: Many registers are used by the controller. Please do not write outside
the three registers.
LED Status
Current
O/P
Status LED
(red) (green)
Display Messages
Internal Power Fault or
system power out of range
1.0 mA
Fast
Flash
-
S e n s o r F a u l t
Automatic or manual VI
Test Failure
2.0 mA
Fast
Flash
-
V I F a u l t
Start Delay (90 seconds) 3.0 mA Blip -
S t a r t D e l a y
M i l l e n n i u m
Normal Operation 4.0 mA - Blip
N O R M
Background radiation
source UV
6.0 mA Flash -
U V P r e s e n t
Background radiation
source IR
8.0 mA Flash -
I R P r e s e n t
Early Warning -
Intermittent radiation
detected
16.0 mA Flash -
W a r n i n g ! !
Fire confirmed 20.0 mA Flash -
F I R E ( f l a s h e s )
Writing to memory - - Solid
B U S Y
Table 5: RTU Output Register (40001) Read Only (binary)
RTUfire_power_up 0x0001 power up delay
RTUfire_vi_fault 0x0002 failed self test
RTUfire_normal 0x0004 normal operation
RTUfire_fault 0x0008 fire head fault
RTUfire_ir_present 0x0010 background IR
RTUfire_uv_present 0x0020 background UV
RTUfire_warning 0x0040 Warning Fire
RTUfire_alarm 0x0080 Fire present
Table 6: RTU Status Register (40002) Read Only (binary)
RTUstat_fault 0x0001 fault (sensor...)
RTUstat_mem_error 0x4000 memory error