Appendix 3
Modbus Register Specification for COMBI 16 channel +CAN system
Function code 03 used througout to access these 16 bit unsigned registers
Baud rate 4800,9600,19200 No parity 2 stop bits
2 channel known as Duty and standby
(RS485)
Register definition Data Units
0 watchdog counting integer none int 250 usec counter
4-20 chan 1 to 16 integer Gas value * 10 as per 17 to 32
4-20 chan 17 to 32 gas 1-16 units see gas number table units will have zero for unused
4-20 chan 33 low alarm bits 1-16 channel 1=alarm (bit 0 is chan 1 etc)
4-20 chan 34 high alarm bits 1-16 channel 1=alarm (bit 0 is chan 1 etc)
4-20 chan 35 overange alarm bits 1-16 channel 1=alarm (bit 0 is chan 1 etc)
4-20 chan 36 Sensor fail 1-16 channel 1=alarm (bit 0 is chan 1 etc)
Can Chan 40 to 104 integer Gas value * 10 as per 105 to 168
Can Chan 105 to 168 gas 1-64 units see gas number table units will have zero for unused
Can Chan 169 low alarm bits 1-16 channel 1=alarm (bit 0 is chan 1 etc)
Can Chan 170 low alarm bits 17-32 channel 1=alarm (bit 0 is chan 17 etc)
Can Chan 171 low alarm bits 33-48 channel 1=alarm (bit 0 is chan 33 etc)
Can Chan 172 low alarm bits 49-64 channel 1=alarm (bit 0 is chan 49 etc)
Can Chan 173 high alarm bits 1-16 channel 1=alarm (bit 0 is chan 1 etc)
Can Chan 174 high alarm bits 17-32 channel 1=alarm (bit 0 is chan 17 etc)
Can Chan 175 high alarm bits 33-48 channel 1=alarm (bit 0 is chan 33 etc)
Can Chan 176 high alarm bits 49-64 channel 1=alarm (bit 0 is chan 49 etc)
Can Chan 177 over range alarm bits 1-16 channel 1=alarm (bit 0 is chan 1 etc)
Can Chan 178 over range alarm bits 17-32 channel 1=alarm (bit 0 is chan 17 etc)
Can Chan 179 over range alarm bits 33-48 channel 1=alarm (bit 0 is chan 33 etc)
Can Chan 180 over range alarm bits 49-64 channel 1=alarm (bit 0 is chan 49 etc)
Can Chan 181 Sensor fail 1-16 channel 1=alarm (bit 0 is chan 1 etc)
Can Chan 182 Sensor fail 17-32 channel 1=alarm (bit 0 is chan 17 etc)
Can Chan 183 Sensor fail 33-48 channel 1=alarm (bit 0 is chan 33 etc)
Can Chan 184 Sensor fail 49-64 channel 1=alarm (bit 0 is chan 49 etc)
item
222 system status bit 0 = global sensor fail
bit 1 = spare
bit 2 = system fault
bit 3 = battery power lost
bit 4 = main power lost
bit 5 =
bit 6 =
bit 7 =
bit 8 = modbus comms fail
bit 9 = l
bit 10 = CAN bus fail
bit 11 = spare
bit 12 = spare
bit 13 = spare
bit 14 = spare
bit 15 = spare
Can Addresses
1 to 64 Can Sensors
65 to 128 Reserved for more
129 to 200 Spare
201 to 209 Panels (default=201)
210 to 255 Spare
Appendix 4
Event numbers are as follows:
chanfail 0-15
chanhialarm 16-31
chanloalarm 32-47
chanoralarm 48-53
Canchanfail 54-69
Canchanhialarm 68-83
Canchanloalarm 84-99
Canchanoralarm 100-115
main_power_alarm 117
can_bus_alarm 118
battery_alarm 119
clear_event_log 120
panelreset 121
37
To Next Page
Loading...
