iTrans Fixed Point Single/Dual Gas Monitor System Wiring
(P/N: 77023554-1) iTrans User Manual 4-11
Figure 4-11. Setting the ModBus Address (Example Address of 240 Decimal)
4.6.3. Setting the ModBus Address for Stand-Alone Sensors
NOTE: This section is only necessary if you are connecting a sensor directly to a
ModBus controller, PLC, or digital system.
For stand-alone sensor heads used in a ModBus network, the address is set in the
same manner. Once the aluminum sensor head is removed with the sensor board,
the sensor electronics module is exposed. On the back of the sensor electronics
module is a small 8-position DIP switch. The address can be set from 1 to 255 in a
similar manner as setting the ModBus address on the except pin 8 on the
sensor’s 8-position DIP switch is the least significant bit, and pin 1 is the most
significant bit.