TS21I_IR_CO2 User Manual
Vighnaharta Technologies Pvt Ltd Page
8
of
13
Modbus Settings:
The following connection diagram showsTS21I_IR_CO2 units connected with Gas Detection Panel.
Siren and power connector locations are shown as below.
Gas Detection Panel (GDP-32) Connection Diagram with TS21I_IR_CO2 units
To communicate TS21I_IR_CO2 unit with gas detection panel, user must set proper slave address
using Interaction. Maximum of 254 slave IDs can be set using Interaction. Refer Interaction
details.
Note
: If user set wrong slave address, then unit may not be able to communicate with gas
detection panel.
Modbus Communication:-
Default Settings for TS21I_IR_CO2
Baud Rate
9600 bps
Parity
Even
Relay 1
NO, O/P: PULSE type
Relay 2
NO, O/P: PULSE type
Relay 3
NO, O/P: PULSE type
Output Voltage
0-10Volts
S.NO
function
code
address function
1
1
101
Read DO2 status High
Alarm
1
102
Read DO1 status Low
Alarm
*2
2
1
Read DI
3
3
1001/1
Reserved
TS21I_IR_CO2
Device 1
TS21I_IR_CO2
Device 2
